TOKO TK11250A

TK112xxA
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES
APPLICATIONS
High Voltage Precision at ± 2.4%
Active High On/Off Control
Very Low Dropout Voltage 80 mV at 30 mA
Very Low Noise
Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
■ Internal Thermal Shutdown
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■ Short Circuit Protection
Battery Powered Systems
Cellular Telephones
Pagers
Personal Communications Equipment
Portable Instrumentation
Portable Consumer Equipment
Radio Control Systems
Toys
Low Voltage Systems
DESCRIPTION
The TK112xxA is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled
by TTL or CMOS logic levels. The device is in the ON state
when the control pin is pulled to a logic high level. An
external capacitor can be connected to the noise bypass
pin to lower the output noise level to 30 µVrms.
TK112XXA
CONTROL
1
6
VIN
GND
2
5
GND
NOISE
3
BYPASS
4
VOUT
P50
An internal PNP pass transistor is used to achieve a low
dropout voltage of 70 mV (typ.) at 30 mA load current. The
TK112xxA has a very low quiescent current of 180 µA at no
load and 1 mA with a 30 mA load. The standby current is
typically 100 nA. The internal thermal shutdown circuitry
limits the junction temperature to below 150 °C. The load
current is internally monitored and the device will shutdown
in the presence of a short circuit or overcurrent condition at
the output.
TK112xxA • PO
The TK112xxA is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
NOISE
BYPASS
1
6
VOUT
GND
2
5
GND
CONTROL
3
4
VIN
BLOCK DIAGRAM
ORDERING INFORMATION
TK112
VIN
A
CONTROL
S
S
S
S
VOUT
THERMAL
PROTECTION
S
Tape/Reel Code
S
Voltage Code
Package Code
S
–
+
S
S
S
VOLTAGE CODE
20 = 2.0 V*
21 = 2.1 V
22 = 2.22 V*
25 = 2.5 V*
28 = 2.8 V*
29 = 2.9 V
30 = 3.0 V*
31 = 3.1 V*
33 = 3.3 V*
35 = 3.5 V*
36 = 3.6 V
38 = 3.8 V
40 = 4.0 V*
42 = 4.2 V
45 = 4.5 V*
48 = 4.8 V*
49 = 4.9 V
50 = 5.0 V*
55 = 5.5 V
PACKAGE CODE
TAPE/REEL CODE
M: SOT-23L
U: SOT-89-5
BX : Bulk/Bag
TL : Tape Left
(SOT-23L)
TB : Tape Bottom
(SOT-89-5)
+
–
S
S
S
S
S
BANDGAP
REFERENCE
S
S
S
S
S
GND
NOISE BYPASS
* Indicates voltage is available in a SOT-89-5 package.
January, 1996 TOKO, Inc.
1-4-96
Page 1
TK112xx A
ABSOLUTE MAXIMUM RATINGS
Operating Temperature Range ...................-30 to +80 °C
Lead Soldering Temp. (3 sec.) .............................. 230 °C
Junction Temperature ........................................... 150 °C
Supply Voltage ......................................................... 16 V
Power Dissipation SOT-23L (Note 1) ................. 400 mW
Power Dissipation SOT-89-5 (Note 2) ................ 800 mW
Storage Temperature Range ................... -55 to +150 °C
TK11220A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.00
2.08
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 1.7 V
1.92
180
240
mA
150
mA
VIN = 3 V → 8 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 3)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.2
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Note 2:
Note 3:
Page 2
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for TA > 25 °C.
Power dissipation is 800 mW when mounted as recommended. Derate at 6.4 mW/°C for TA > 25 °C.
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11221A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.1 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.10
2.18
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 1.8 V
2.02
180
240
mA
150
mA
VIN = 3.1 V → 8.1 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 3.5 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.2
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 3
TK112xx A
TK11222A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.22 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.22
2.3
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 1.92 V
2.14
180
240
mA
150
mA
VIN = 3.22 V → 8.22 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 3.72 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 4
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11225A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.50
2.58
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 2.2 V
2.42
180
240
mA
150
mA
VIN = 3.5 V → 8.5 V (Note 1)
3.0
20
mV
IO = 5 mA → 60 mA
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 4.0 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 5
TK112xx A
TK11228A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
IO = 150 mA
IO
Output Current
VOUT = 2.5 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 3.8 V → 8.8 V
Load Reg
Load Regulation
RR
MIN
2.72
180
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.80
2.88
V
0.16
0.29
0.26
0.4
V
V
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆VO/∆TA
Output Voltage
Temperature Dependency
VIN = 4.3 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 6
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11229A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.9 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
2.90
2.98
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
VOUT = 2.6 V
240
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
2.82
mA
150
mA
VIN = 3.9 V → 8.9 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 4.4 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 7
TK112xx A
TK11230A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.00
3.08
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 2.7 V
2.92
180
240
mA
150
mA
VIN = 4 V → 9 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆VO/∆TA
Output Voltage
Temperature Dependency
VIN = 4.5 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 8
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11231A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.1 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.10
3.18
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 2.8 V
3.02
180
240
mA
150
mA
VIN = 4.1 V → 9.1 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 4.6 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 9
TK112xx A
TK11233A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.3 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.30
3.38
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 3 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 4.3 V → 9.3 V
Load Reg
Load Regulation
RR
3.22
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 4.8 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 10
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11235A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.50
3.58
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 3.2 V
3.42
180
240
mA
150
mA
VIN = 4.5 V → 9.5 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 5 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.05
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 11
TK112xx A
TK11236A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.6 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.60
369
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 3.3 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 3.6 V → 9.6 V
Load Reg
Load Regulation
RR
3.51
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 5.3 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 12
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11238A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
3.80
3.89
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 3.5 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 4.8 V → 9.8 V
Load Reg
Load Regulation
RR
3.71
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆VO/∆TA
Output Voltage
Temperature Dependency
VIN = 5.3 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 13
TK112xx A
TK11240A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
4.00
4.10
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 3.7 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 5 V → 10 V
Load Reg
Load Regulation
RR
3.90
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 5.5 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 14
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11242A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.2 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
4.20
4.30
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
VOUT = 3.9 V
240
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 5.2 V → 10.2 V
Load Reg
Load Regulation
RR
4.10
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 5.7 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 15
TK112xx A
TK11245A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
4.50
4.61
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 4.2 V
4.39
180
240
mA
150
mA
VIN = 5 V → 10 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 6 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 16
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11248A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
4.80
4.92
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 4.5 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 5.8 V → 10.8 V
Load Reg
Load Regulation
RR
4.68
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 6.3 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.1
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 17
TK112xx A
TK11249A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.9 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
4.90
5.02
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 4.6 V
4.78
180
240
mA
150
mA
VIN = 5.9 V → 10.9 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 6.4 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.2
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 18
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TK11250A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 6.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
5.00
5.12
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
IOR
Recommended Output Current
Line Reg
Line Regulation
Load Reg
Load Regulation
RR
VOUT = 4.7 V
4.88
180
240
mA
150
mA
VIN = 6 V → 11 V
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 6.5 V, I O = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.2
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
50
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 19
TK112xx A
TK11255A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 6.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
170
350
µA
0.1
µA
5.5
5.63
V
IIN
Quiescent Current
IO = 0 mA, Except ICONT
ISTBY
Standby Current
VIN = 8 V, at output off
VO
Output Voltage
IO = 30 mA
VDROP
Dropout Voltage
IO = 60 mA
0.16
0.26
V
IO = 150 mA
0.29
0.4
V
IO
Output Current
VOUT = 5.2 V
IOR
Recommended Output Current
Line Reg
Line Regulation
VIN = 6.5 V → 11.5 V
Load Reg
Load Regulation
RR
5.36
180
240
mA
150
mA
3.0
20
mV
IO = 5 mA → 60 mA (Note 1)
IO = 5 mA → 100 mA
IO = 5 mA → 150 mA
10
20
30
50
100
160
mV
mV
mV
Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
∆V O/∆TA
Output Voltage
Temperature Dependency
VIN = 7 V, IO = 10 mA
-20 °C ≤ TA ≤ + 75 °C
0.2
mV/ °C
VNO
Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
50
µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25
V
Control Terminal Specification
ICONT
Control Current
Output on, VCONT = 1.8 V
VCONT
Control Voltage
Output on
12
1.8
Note 1:
Page 20
Output Rise Time
IO = 30 mA,
VCONT = 0 V → 1.8 V
µA
V
Output off
tr
30
0.6
0.3
V
ms
This is a pulse measurement where T J is constant. The output change due to temperature is not included.
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
TEST CIRCUITS
SOT-23L
SOT-89-5
I IN
V IN
A
+
_
S
S
0.1 µF
+
V IN
VO
6
5
4
1
2
3
CONT
CONT
S
A
+
VO
S
2.2 µF
VO
S
IO
V
+
+
6
5
4
1
2
3
A
S
2.2 µF
NOISE
BYPASS
NOISE
BYPASS
0.1 µF
V IN
Cont
+
CP
+
1µF
S
V
+
_
V CONT
•Pin 5 is heat fin
Contact to GND
V OUT
112XXA
Rs
VIN
I CONT
A
Transient Response
V
+
_
0.1 µF
CONT
0.1 µF
I CONT
+
_
IO
V
I IN
VIN
S
V IN
CL = .22 t o 10 µ F
0.1 µ F
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C unless otherwise specified
LOAD REGULATION
SUPPLY VOLTAGE vs. INPUT CURRENT
(NO LOAD)
LINE REGULATION
20
mV/Div
50
mV/Div
V
O
2
ICC
(mA)
VO
(V)
VO
(V)
V
O
1
3V 4V 5V
2V
0
50
100
IO (mA)
150
0
10
VCC (V)
1
QUIESCENT CURRENT vs. LOAD
CURRENT
0
20
5
VCC (V)
2
79
DROPOUT VOLTAGE vs. LOAD
CURRENT
OUTPUT VOLTAGE vs. INPUT VOLTAGE
50
IOmV/Div
= 0 mA
20
10
TA = 25 °C
500
400
10
VDROP (mV)
VOUT
IQ (mA)
IO = 30 mA
IO = 60 mA
IO = 90 mA
100
IO (mA)
January, 1996 TOKO, Inc.
200
VCC
4
50
mV/Div
0
5
1-4-96
200
100
VCC = VOUT
0
300
100
IO (mA)
200
6
Page 21
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
CONTROL CURRENT vs. CONTROL
VOLTAGE
SHORT CURRENT vs. OUTPUT VOLTAGE
TA = 25 °C
50
5
QUIESCENT CURRENT vs. INPUT
VOLTAGE (OFF)
5V
40
ICONT (µ A)
4V
3
3V
2
RC = 0
RC = 10 k
RC = 50 k
30
500
RC = 100 k
20
2V
RC = 0
RC = 10 k
RC = 50 k
10
1
TA = 25 °C
1000
IQ
(pA)
4
VO
(V)
V
O
RC = 100 k
0
150
IO (mA)
–2
–3
–4
–1
VC(ON) = VCC – VCONT (V)
0
300
80
NOISE LEVEL vs. FREQUENCY
–5
0
10
VCC (V)
8
RIPPLE REJECTION vs. FREQUENCY
9
LINE TRANSIENT RESPONSE
0
TA = 25 °C
20
50 µ s/Div
(VO+2)V
(VO+1)V
VCC
-50
(dB)
NOISE (dB)
CL = 0.22 µ F
CL = 3.3 µ F, CP = 0
CP = 1000 pF
-50
VO
CL = 3.3 µ F, CP = 0.01 µ F
-100
Analyze
r
0
500 k
FREQUENCY
(Hz)
1M
-100
100
11
LOAD TRANSIENT RESPONSE
CL = 2.2 µ F
CP = 0.01 µ F
1k
10 k
FREQUENCY
(Hz)
100 k
13
12
NOISE LEVEL vs. BYPASS CAPACITOR
OUTPUT VOLTAGE RESPONSE
(OFF ON)
5 µ s/Div
50 µ s/Div
100 mA
10 mV/Div
IO = 60 mA
250
CL = 22 µ F
SD
50 mA
CL = 1.0 µ F
VO
CL = 0.22 µ F
CL = 0.22 µ F
VO
VO = 5 V
200
CL = 0.68 µ F
VDROP (mV)
IO
VO = 2 V
150
100
CL = 2.2 µ F
CL = 10 µ F
50
50 mV/Div
VO = 2 V
CL = 2.2 µ F
14
Page 22
VO = 5 V
CL = 1000 pF
1-4-96
IO = 60 mA
15
1pF
10pF
100pF 1000pF 0.01µ F 0.1µ F
CP
16
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
DROPOUT VOLTAGE vs. TEMPERATURE
CONTROL CURRENT vs. TEMPERATURE
500
50
4
400
40
3
2
IO = 60
mA
1
0
-50
300
IO = 100
mA
200
100
IO = 30
mA 100
0
50
TEMPERATURE (°C)
17
VCONT = 5 V
30
VCONT = 2.4 V
20
10
IO = 30
mA
0
-50
CONTROL VOLTAGE THRESHOLD vs.
TEMPERATURE
0
50
TEMPERATURE (°C)
0
100
-50
0
50
TEMPERATURE (°C)
18
OUTPUT CURRENT vs. TEMPERATURE
100
19
OUTPUT VOLTAGE VARIATION
280
RC = 0
2.0
ICONT (µ A)
5
VDROP (mV)
IQ (mA)
QUIESCENT CURRENT vs.
TEMPERATURE
10 mV/Div
+
VCONT
(V)
IO (mA)
260
1.0
240
5V
0
2V
220
3V
4V
200
–
0
0
-50
0
50
TEMPERATURE (°C)
-50
100
20
0
50
TEMPERATURE (°C)
100
-50
21
0
50
TEMPERATURE (°C)
100
81
TK11220A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
+50 mV
2
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
January, 1996 TOKO, Inc.
300
26
0
5
VCC (V)
1-4-96
10
-50
0
50
TEMPERATURE (°C)
100
27
25
Page 23
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11221A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
52
10
-50
53
0
50
TEMPERATURE (°C)
100
54
TK11222A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
2
0
1
0
150
IO (mA)
0
300
5
VCC (V)
55
-50 mV
10
-50
56
0
50
TEMPERATURE (°C)
100
57
TK11225A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
+50 mV
2
∆VOUT
(V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
Page 24
150
IO (mA)
300
29
0
5
VCC (V)
1-4-96
10
28
-50
0
50
TEMPERATURE (°C)
100
30
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11228A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
2
0
1
-50 mV
0
150
IO (mA)
300
0
5
VCC (V)
59
-50
10
0
50
TEMPERATURE (°C)
58
100
60
TK11229A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
10 mV/Div
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
2
0
1
-50 mV
0
150
IO (mA)
300
0
5
VCC (V)
61
-50
10
62
TK11230A
TA = 25 °C
5
100
63
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
0
50
TEMPERATURE (°C)
+50 mV
2
10 mV/Div
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
January, 1996 TOKO, Inc.
300
32
0
5
VCC (V)
1-4-96
10
31
-50
0
50
TEMPERATURE (°C)
100
33
Page 25
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11231A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
35
-50
10
34
0
50
TEMPERATURE (°C)
100
36
TK11233A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
2
0
1
-50 mV
0
150
IO (mA)
300
0
5
VCC (V)
64
-50
10
65
0
50
TEMPERATURE (°C)
100
66
TK11235A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
Page 26
150
IO (mA)
300
38
0
5
VCC (V)
1-4-96
10
37
-50
0
50
TEMPERATURE (°C)
100
39
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11236A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
82
-50
10
83
0
50
TEMPERATURE (°C)
100
84
TK11238A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
67
-50
10
68
TK11240A
TA = 25 °C
5
100
69
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
0
50
TEMPERATURE (°C)
+50 mV
2
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
January, 1996 TOKO, Inc.
300
41
0
5
VCC (V)
1-4-96
10
40
-50
0
50
TEMPERATURE (°C)
100
42
Page 27
TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11242A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
300
0
5
VCC (V)
70
-50
10
71
0
50
TEMPERATURE (°C)
100
72
TK11245A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
+50 mV
2
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
44
-50
10
43
0
50
TEMPERATURE (°C)
100
45
TK11248A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
Page 28
150
IO (mA)
300
73
0
5
VCC (V)
1-4-96
10
74
-50
0
50
TEMPERATURE (°C)
100
75
January, 1996 TOKO, Inc.
TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
TK11249A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
85
5
10
VCC (V)
86
-50
0
50
TEMPERATURE (°C)
100
87
TK11250A
TA = 25 °C
5
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
2
+50 mV
∆VO (V)
3
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
0
300
5
VCC (V)
50
-50
10
49
0
50
TEMPERATURE (°C)
100
51
TK11255A
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
2
+50 mV
5
3
∆VO (V)
ICC
(mA)
VO
(V)
4
1
0
2
1
-50 mV
0
150
IO (mA)
January, 1996 TOKO, Inc.
300
76
0
5
VCC (V)
1-4-96
10
77
-50
0
50
TEMPERATURE (°C)
100
78
Page 29
TK112xx A
DEFINITION AND EXPLANATION OF TECHNICAL TERMS
the SOT-23L is increased to 400 mW. For operation at
ambient temperatures over 25 °C, the power dissipation of
the SOT-23L device should be derated at 3.2 mW/°C. The
power dissipation of the SOT-89-5 package is 800 mW
when mounted as recommended. Derate the power dissipation at 6.4 mW/°C for operation above 25 °C. To
determine the power dissipation for shutdown when
mounted, attach the device on the actual PCB and deliberately increase the output current (or raise the input voltage)
until the thermal protection circuit is activated. Calculate
the power dissipation of the device by subtracting the
output power from the input power. These measurements
should allow for the ambient temperature of the PCB. The
value obtained from PD/(150 °C - TA) is the derating factor.
The PCB mounting pad should provide maximum thermal
conductivity in order to maintain low device temperatures.
As a general rule, the lower the temperature, the better the
reliability of the device. The Thermal resistance when
mounted is expressed as follows:
LINE REGULATION (LINE REG)
Line regulation is the relationship between change in
output voltage due to a change in input voltage.
LOAD REGULATION (LOAD REG)
Load regulation is the relationship between change in
output voltage due to a change in load current.
DROP OUT VOLTAGE (VDROP)
This is a measure of how well the regulator performs as the
input voltage decreases. The smaller the number, the
further the input voltage can decrease before regulation
problems occur. Nominal output voltage is first measured
when VIN = V OUT + 1 at a chosen load current. When the
output voltage has dropped 100 mV from the nominal, VIN
- VOUT is the dropout voltage. This voltage is affected by
load current and junction temperature.
TJ = 0JA X PD + TA
OUTPUT NOISE VOLTAGE
For Toko ICs, the internal limit for junction temperature is
150 °C. If the ambient temperature, TA is 25 °C, then:
This is the effective AC voltage that occurs on the output
voltage under the condition where the input noise is low and
with a given load, filter capacitor, and frequency range.
150 °C = 0JA X PD + 25 °C
0JA X PD = 125 °C
0JA = 125 °C/ PD
THERMAL PROTECTION
PD is the value when the thermal sensor is activated. A
simple way to determine PD is to calculate VIN X IIN when
the output side is shorted. Input current gradually falls as
temperature rises. You should use the value when thermal
equilibrium is reached.
This is an internal feature which turns the regulator off when
the junction temperature rises above 150 °C. After the
regulator turns off, the temperature drops and the regulator
output turns back on. Under certain conditions, the output
waveform may appear to be an oscillation as the output
turns off and on and back again in succession.
The range of currents usable can also be found from the
graph below.
PACKAGE POWER DISSIPATION (PD)
(mW)
This is the power dissipation level at which the thermal
sensor is activated. The IC contains an internal thermal
sensor which monitors the junction temperature. When the
junction temperature exceeds the monitor threshold of
150 °C, the IC is shutdown. The junction temperature rises
as the difference between the input power (VIN X IIN) and
the output power (VOUT X I OUT) increases. The rate of
temperature rise is greatly affected by the mounting pad
configuration on the PCB, the board material, and the
ambient temperature. When the IC mounting has good
thermal conductivity, the junction temperature will be low
even if the power dissipation is great. When mounted on
the recommended mounting pad, the power dissipation of
Page 30
3
PD
6
Dpd
4
5
25
50
75
T (°C)
150
Procedure:
1.)
2.)
3.)
4.)
1-4-96
Find PD
PD1 is taken to be PD X (≈0.8 ~ 0.9)
Plot PD1 against 25 °C
Connect PD1 to the point corresponding to the 150 °C
with a straight line.
January, 1996 TOKO, Inc.
TK112xxA
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
5.) In design, take a vertical line from the maximum
operating temperature (e.g. 75 °C) to the derating
curve.
6.) Read off the value of PD against the point at which the
vertical line intersects the derating curve. This is taken
as the maximum power dissipation, DPD .
Ceramic Substrate
25 X 30 mm
PD (mW)
2000
The maximum operating current is:
Glass Epoxy
Circuit Board
10 X 10 mm
Mounted
as shown
1000
IOUT = (DPD/(VIN(MAX) - VOUT).
Unmounted
0
0
VIN
VO
A
A
+
+
ON/OFF
GND
SOT-23L Board Layout
Mounted as shown
PD (mW)
300
200
Unmounted
100
0
0
50
100
TA (°C)
150
23
SOT-23L Power Dissipation Curve
VO
VIN
A
A
+
+
ON/OFF
January, 1996 TOKO, Inc.
SOT-89-5 Board Layout
100
TA (°C)
150
24
SOT-89-5 Power Dissipation Curve
Copper pattern should be as large as possible. Power
dissipation is 400 mW for SOT-23L and 800 mV for SOT89-5. A low ESR capacitor is recommended. For low
temperature operation, select a capacitor with a low ESR at
the lowest operating temperature to prevent oscillation,
degradation of ripple rejection and increase in noise. The
minimum recommended capacitance is 2.2 µF.
INPUT/OUTPUT DECOUPLING CAPACITOR CONSIDERATIONS
500
400
50
Voltage regulators require input and output decoupling
capacitors. The required value of these capacitors vary
with application. Capacitors made by different manufacturers can have different characteristics, particularly with
regard to high frequencies and equivalent resistance (ESR)
over temperature. The type of capacitor is also important.
For example, a 4.7 µF aluminum electrolytic may be required for a certain application. If a tantalum capacitor is
used, a lower value of 2.2 µF would be adequate. It is
important to consider the temperature characteristics of the
decoupling capacitors. While Toko regulators are designed to operate as low as -40 °C, many capacitors will not
operate properly at this temperature. The capacitance of
aluminum electrolytic capacitors may decrease to 0 at low
temperatures. This may cause oscillation on the output of
the regulator since some capacitance is required to guarantee stability. Thus, it is important to consider the characteristics of the capacitor over temperature when selection
decoupling capacitors. The ESR is another important
parameter. The ESR will increase with temperature but low
ESR capacitors are often larger and more costly. In
general, Tantalum capacitors offer lower ESR than aluminum electrolytic, but new low ESR aluminum electrolytic
1-4-96
Page 31
TK112xx A
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
capacitors are now available from several manufacturers.
Usually a bench test is sufficient to determine the minimum
capacitance required for a particular application. After
taking thermal characteristics and tolerance into account,
the minimum capacitance value should be approximately
two times this value. The recommended minimum capacitance for the TK112xxA is 2.2 µF. Please note that linear
regulators with a low dropout voltage have high internal
loop gains which requires care in guarding against oscillation caused by insufficient decoupling capacitance. The
use of high quality decoupling capacitors suited for your
application will guarantee proper operation of the circuit.
NOISE BYPASS CAPACITOR SECTION
The noise bypass capacitor (CP) should be connected as
close as possible to pin 3 and ground. The recommended
value for CP is 0.01 µF. The noise bypass terminal has a
high impedance and care should be taken if the noise
bypass capacitor is not used. This terminal is susceptible
to external noise and oscillation can occur when CP is not
used and the solder pad for this pin is made too large.
Page 32
1-4-96
January, 1996 TOKO, Inc.
TK112xxA
CONTROL FUNCTION
SOT-23L
V IN
SOT-89-5
V IN
S
S
6
5
4
6
5
4
SW
SW
R
1
2
3
1
CP
2
3
R
CP
If the control function is not used, connect the control terminal to a logic high level or VIN. This will allow the regulator
to be on. The regulator will be on when the control terminal voltage is greater than 1.8 V. The seris resistor, RS,
should be less than 300 kΩ. The control current will decrease as R S, increases. The control threshold voltage will
also change.
MICROPROCESSOR/LOGIC CONTROL
VO
VIN
112XXA
CMOS/TTL Logic
+
GND
Cont
CIN
+
COUT
The Input and Control current in the off mode are less than 200 pA.
PARALLEL CONNECTION FOR ON/OFF CONTROL
VIN
VIN
VO
5V
11250A
Cont
GND
VIN
+
VO
3V
11230A
0.1 µ F
+
R
Cont
GND
VIN
+
VO
2V
11220A
0.1 µ F +
Cont
GND
+
On/Off
To reduce IC power dissipation, connect a resistor, RS, in series with VIN for the lower output voltage devices. This
will prevent thermal shutdown due to excessive power dissipation.
January, 1996 TOKO, Inc.
1-4-96
Page 33
TK112xx A
PACKAGE OUTLINE
SOT-23L
6
5
4
0.6
1.0
Voltage Code
e1
3.2
Marking Information
Product Code
Orientation Mark
1
2
3
0.4
e
(Pin 2 and pin 5 should be
grounded for heat dissipation)
0.1
M
e
0.95
e
0.95
0.95
e
0.95
Recommended Mount Pad
± 0.2
2.2
± 0.2
0.2
± 0.3
30°
0.15
+0.1
-0.05
±0.15
0.4
3.3
Max
1.2 ±
0.05
± 0.05
1.25
+0.15
-0
0.3
3.4
SOT-89-5
± 0.1
4.5
± 0.1
1.5
1.6
0.49max
0.49max
0.49max
.7max
1.0
.7max
0.44max
1.5
4
.7
45°
Voltage Code
1
2
3
0.54max
0.49max
e
1.0
1.5
4.5
± 0.1
2.5
+0.5
-0.3
.8
.7
0.4
5
e
1.5
e'
1.5
Product Code
P
Voltage Code
TK11220A
TK11221A
TK11222A
TK11225A
TK11228A
TK11229A
TK11230A
TK11231A
TK11233A
TK11235A
TK11236A
TK11238A
TK11240A
TK11242A
TK11245A
TK11248A
TK11249A
TK11250A
TK11255A
20
21
22
25
28
29
30
31
33
35
36
38
40
42
45
48
49
50
55
+0.1
-0.05
2.0
1.5
0.49max
Product
Code
3.0
1.5
0.44max
Recommended Mount Pad
Unit:mm
The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO
does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted
by implication or otherwise under any patent or patent rights of TOKO, Inc.
YOUR LOCAL REPRESENTATIVE IS:
TOKO America
1250 Feehanville Dr.
Mt. Prospect, ILL 60056
Tel: 1(800) PIK-TOKO
Fax: 1(847) 699-1194
Page 34
© 1994 Toko America, Inc.
All Rights Reserved
1-4-96
IC-114-TK112
January, 1996 TOKO, Inc.
Printed in U.S.A.