Power APU1209 1a very low dropout positive Datasheet

Advanced Power
Electronics Corp.
Technology Licensed from International Rectifier
APU1206/APU1207/APU1208/APU1209
1A VERY LOW DROPOUT POSITIVE
FIXED AND ADJUSTABLE REGULATORS
DESCRIPTION
FEATURES
Low Dropout Voltage (500mV at 1A)
2% Voltage Reference Accuracy
Low Ground Current
1µA Maximum Quiescent Current in Shutdown
(APU1207, APU1208)
Fast Transient Response
Current Limit and Thermal Shutdown
Error Flag Signal for Output out of Regulation
(APU1207, APU1208)
RoHS Compliant & Halogen Free
APPLICATIONS
2.5V Supply from 3.3V Input for the new
generation of Logic ICs
Computer Mother Board, Add-On Cards
High Efficiency Post Regulator in Switch Mode
Power Supply (SMPS)
The APU1206 family of devices are ultra low dropout 1A
regulators using PNP transistor as the pass element.
These products are ideal when a single input supply is
only available and the dropout voltage is less than 1V,
exceeding the minimum dropout characteristics of NPN/
PNP hybrid regulators. One common application of these
regulators is where input is 3.3V and a 2.5V output is
needed.
Besides the low dropout of less than 0.5V, other features of the family of the parts are: micro-power shutdown capability and output UVLO detection where Flag
pin is switched low when output is below 5% of its nominal point.
TYPICAL APPLICATION
VOUT
VOUT
3
APU1206XX Gnd 2
VIN
C2
1
VIN
C1
Figure 1 - Typical application of the 1206-XX in a 3-Pin SOT-223 package.
Data and specifications subject to change without notice.
1
201210266
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
2-PIN
TO-252(H)
APU1206H-18
APU1206H-25
APU1206H-33
NA
NA
NA
NA
NA
3-PIN
SOT-223(K)
APU1206K-18
APU1206K-25
APU1206K-33
NA
NA
NA
NA
NA
Basic Part
8-PIN PLASTIC
SOIC(M)
NA
NA
NA
APU1207M-18
APU1207M-25
APU1207M-33
APU1208M
APU1209M
VOLTAGE
PIN FUNCTIONS
1.8V
2.5V
3.3V
1.8V
2.5V
3.3V
Adj
Adj
VIN, VOUT, Gnd
VIN, VOUT, Gnd
VIN, VOUT, Gnd
VIN, VOUT, Gnd, Enable, Flag
VIN, VOUT, Gnd, Enable, Flag
VIN, VOUT, Gnd, Enable, Flag
VIN, VOUT, Gnd, Flag, Adj
VIN, VOUT, Gnd, Enable, Adj
2
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
ABSOLUTE MAXIMUM RATINGS
Input Voltage (VIN) .................................................... 10V
Enable Input Voltage ................................................ 10V
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 135°C
PACKAGE INFORMATION
2-PIN PLASTIC TO-252 (H)
APU1206
3-PIN PLASTIC SOT-223 (K)
APU1206
FRONT VIEW
TOP VIEW
3
VOUT
Tab is
Gnd
1
θJA=70°C/W
for 0.5" Sq pad
VIN
8-PIN PLASTIC SOIC (M)
APU1208
APU1207
1
8
2
7
3
6
4
5
Gnd
Gnd
Gnd
Gnd
θJA=55°C/W
for 1" Sq pad
Flag
VIN
VOUT
Adj
1
8
2
7
3
6
4
5
Gnd
Gnd
Gnd
Gnd
θJA=55°C/W
for 1" Sq pad
3
VOUT
2
Gnd
1
VIN
θJA=90°C/W
for 0.4" Sq pad
APU1209
TOP VIEW
TOP VIEW
TOP VIEW
Enable
VIN
VOUT
Flag
Tab is
Gnd
Enable
VIN
VOUT
Adj
1
8
2
7
3
6
4
5
Gnd
Gnd
Gnd
Gnd
θJA=55°C/W
for 1" Sq pad
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CIN=COUT=10µF, VIN=Vo+1V, VOUT=VFB (For adjustable
version only), and TA=25°C. Typical values refer to TA=25°C. Low duty cycle pulse testing is used which keeps
junction and case temperatures equal to the ambient temperature.
PARAMETER
Initial Voltage Accuracy
(see Table 1 for nominal values)
Line Regulation
Load Regulation (Note 1)
SYM
Vo
Output Voltage Temp Coef.
Dropout Voltage (Note 2)
∆V O(T)
∆VI(O) Io=100mA
Io=500mA
Io=1000mA
IQ
VIN=Vo + 1 for all conditions:
Io=100mA
Io=500mA
Io=1000mA
ICL
Vo=5% Below Regulation Point
VIN(min)
Ground Current (Note 3)
Current Limit
Minimum Input Voltage
APU1208, APU1209
Adjust Pin Current
Minimum Load Current
∆VI
∆VL
IADJ
IO(min)
TEST CONDITION
Io=10mA, TA=25℃
MIN
-2
Vo + 1V<VIN<10
10mA<Io<1A
1mA<Io<150mA
TYP
MAX
2
UNITS
%
0.5
0.5
1
0.7
0.5
100
200
400
650
%
%
20
100
300
500
3
15
50
1.1
VIN=2.5V, Vo=VADJ
1.4
2.1
2.3
0.1
1
ppm/℃
mV
mA
A
V
µA
mA
3
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
PARAMETER
APU1207, APU1209
Ground Current - SD Activated
Enable Pin Input LO Voltage
Enable Pin Input HI Voltage
Enable Pin Input LO Current
Enable Pin Input HI Current
APU1207, APU1208
Flag Output Threshold Voltage
Flag Output Hysteresis Voltage
Flag Output Saturation Voltage
SYM
IQ(SD)
VEN(L)
VEN(L)
TEST CONDITION
Enable=Open
Regulator OFF
Regulator ON
VEN(L)=0V to 0.8V
VEN(L)=2V to Vin
MIN
Note 2: Dropout voltage is defined as the minimum differential voltage between VIN and VOUT required to maintain regulation at VOUT. It is measured when the output
voltage drops 1% below its nominal value.
MAX
UNITS
0.01
1
0.8
0.1
100
2
600
µA
V
V
µA
µA
2
VTH(FG)
VHYS Output Ramping Up
VF(SAT) Io=5mA
Io=500µA
Note 1: Low duty cycle pulse testing with Kelvin connections is required in order to maintain accurate data.
TYP
5
0.8
400
230
%VO
%VO
mV
Note 3: Ground current is the regulator quiescent current plus the pass transistor current. The total current
from the supply is the sum of the load current plus the
ground pin current.
PIN DESCRIPTIONS
PIN SYMBOL
VIN
(All devices)
PIN DESCRIPTION
The input pin of the regulator. Typically a large storage capacitor is connected from this pin
to ground to insure that the input voltage does not sag below the minimum drop out voltage
during the load transient response. This pin must always be 0.6V higher than VOUT in order
for the device to regulate properly.
VOUT
The output of the regulator. A minimum of 2.2µF capacitor must be connected from this pin
(All devices)
to ground.
Gnd
Ground pin. This pin must be connected to the lowest potential in the system and all other
(All devices)
pins must be at higher potential with respect to this pin.
Enable
Enable pin. A low signal or left open on this pin shuts down the output. This pin must be tied
(APU1207, APU1209) HI or to VIN for normal operation.
Flag
An open collector output that switches low when the output voltage drops about 4% below
(APU1207, APU1208) its expected regulated voltage.
Adj
A resistor divider from this pin to the VOUT pin and ground sets the output voltage.
(APU1208, APU1209)
APPLICATION INFORMATION
Stability
The APU120X series of regulators require the use of an
output capacitor as part of the frequency compensation
in order to make the regulator stable. A minimum of 2.2µF
capacitance and the ESR in the range of 0.5 to 2Ω insures the stability of the system.
Part Number
APU1206-18
APU1206-25
APU1206-33
APU1207-18
APU1207-25
APU1207-33
APU1208
APU1209
Output
Voltage
1.8V
2.5V
3.3V
1.8V
2.5V
3.3V
1.24V
1.24V
Table 1 - Output voltage vs. part number.
4
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
TYPICAL APPLICATION
VOUT
3
VOUT
APU1206XX Gnd 2
VIN
C2
1
VIN
C1
Note: Tab must also be
connected to ground.
Figure 2 - Typical application of APU1206.
Ref Desig
C1
C2
Description
Capacitor
Capacitor
5 Gnd
Qty
1
1
Part #
10µF, Tantalum
10µF, Tantalum
Manuf
AVX
AVX
Flag
4
Error Flag
VOUT
3
VOUT
7 Gnd
VIN
2
8 Gnd
Enable
1
6 Gnd
APU1207
R1
C2
SD Enable
VIN
C1
Figure 3 - Typical application of APU1207.
Ref Desig
C1
C2
R1
Description
Capacitor
Capacitor
Resistor
Qty
1
1
1
Part #
10µF, Tantalum
10µF, Tantalum
10KΩ,5%
Manuf
AVX
AVX
Panasonic
5
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
TYPICAL APPLICATION
5
Gnd
Adj
4
6
Gnd
VOUT
3
7
Gnd
VIN
2
8
APU1208
Gnd
Flag
VOUT
R1
C2
R3
1
R2
Error Flag
VIN
(
C1
Vo = 1.24 X 1 +
R1
R2
)
Figure 4 - Typical application of APU1208 in 3.3V to 2.5V regulator.
Ref Desig
C1
C2
R1
R2
R3
Description
Capacitor
Capacitor
Resistor
Resistor
Resistor
Qty
1
1
1
1
1
Part #
10µF, Tantalum
10µF, Tantalum
127Ω, 1%
124Ω, 1%
10KΩ, 5%
Manuf
AVX
AVX
6
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
TYPICAL APPLICATION
5
Gnd
Adj
4
6
Gnd
VOUT
3
7
Gnd
VIN
2
APU1209
VOUT
R1
C2
R2
8
Enable
Gnd
SD
1
Enable
VIN
Vo = 1.24 X
C1
( 1 + R1
R2 )
Figure 5 - Typical application of APU1209 in 3.3V to 2.5V regulator.
Ref Desig
C1
C2
R1
R2
Description
Capacitor
Capacitor
Resistor
Resistor
Qty
1
1
1
1
Part #
10µF, Tantalum
10µF, Tantalum
127Ω, 1%
124Ω, 1%
Manuf
AVX
AVX
7
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
CHARACTERISTICS
APU1209 Line Regulation @ 5mA to 100mA
Vout
Percent Error
% Error
Vout
1.25
5.00%
1.245
4.50%
2V
2.
5V
3V
4V
3.
5V
5V
4.
5V
6V
10
.5
10
.5
11
12
11
5.
5V
0.00%
6.
5V
1.2
7V
0.50%
8V
1.00%
1.205
7.
5V
1.50%
1.21
9V
1.215
8.
5V
2.00%
V
2.50%
1.22
9.
5V
1.225
V
3.00%
V
3.50%
1.23
V
4.00%
V
1.24
1.235
Input Voltage
Figure 6
APU1209 Maximum Output Current ~ 1.25A
while in the current limit mode.
APU1209 Output Voltage in Yellow. A DC offset equal
to the output voltage is applied to improve resolution.
The output is regulating current in this mode.
Figure 7
5 Sep 2001
15:15:05
8
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
CHARACTERISTICS
APU1209 Voltage Drop-out Variation w ith Am bient Tem perature
w ith various load currents
APU1209 Vout Variation w ith Ambient Tem perature
w ith Vin @ 3.5V and 12V
2.55
2.5
2.54
2.4
2.53
2.3
2.52
2.1
100 mA
2.0
500 mA
1A
1.9
2.51
3.5 V
2.50
12V
1.8
2.49
1.7
2.48
1.6
2.47
1.5
-50
0
50
100
2.46
150
-50
Tem pe ra ture ( ℃)
0
Figure 8
50
100
150
Figure 9
APU1209 Ground Current Variation with Ambient Temperature
100
90
80
70
60
mA
mA
2.2
50
40
30
20
10
0
-50
0
50
100
150
Ambie nt Tem pe ra ture (℃ )
Figure 10
9
Advanced Power
Electronics Corp.
APU1206/APU1207/APU1208/APU1209
MARKING INFORMATION
SO-8
Part Number
Output Voltage
U120X-XX
YWWSSS
Date Code (YWWSSS)
Y:Last Digit Of The Year
WW:Week
SSS:Sequence
SOT-223
Part Number
Output Voltage
U1206-XX
YWWSSS
Date Code (YWWSSS)
Y:Last Digit Of The Year
WW:Week
SSS:Sequence
TO-252
Part Number
Output Voltage
U1206-XX
YWWSSS
Date Code (YWWSSS)
Y:Last Digit Of The Year
WW:Week
SSS:Sequence
10
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