TI TL1963ADCQT

TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
1.5-A LOW-NOISE FAST-TRANSIENT-RESPONSE LOW-DROPOUT REGULATOR
FEATURES
1
•
•
•
•
•
•
•
DCQ PACKAGE
(TOP VIEW)
GND
Optimized for Fast Transient Response
Output Current: 1.5 A
Dropout Voltage: 340 mV
Low Noise: 40 μVRMS (10 Hz to 100 kHz)
1-mA Quiescent Current
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V,
and 3.3 V
Adjustable Output Voltage: 1.21 V to 20 V
Less Than 1-μA Quiescent Current in
Shutdown
Stable with 10-μF Output Capacitor
Stable with Ceramic Capacitors
Reverse-Battery Protection
No Reverse Current
Thermal Limiting
5
4
3
2
1
6
SENSE/ADJ
OUT
GND
IN
SHDN
DCY PACKAGE
(TOP VIEW)
GND
•
•
•
•
•
•
•
•
2
4
3
OUT
2
GND
1
IN
KTT PACKAGE
(TOP VIEW)
5
4
3
2
1
SENSE/ADJ
OUT
GND
IN
SHDN
APPLICATIONS
•
•
3.3-V to 2.5-V Logic Power Supplies
Post Regulator for Switching Supplies
DESCRIPTION/ORDERING INFORMATION
The TL1963A-xx is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply
1.5 A of output current with a dropout voltage of 340 mV. Operating quiescent current is 1 mA, dropping to less
than 1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other
regulators. In addition to fast transient response, the TL1963A-xx regulators have very low output noise, which
makes them ideal for sensitive RF supply applications.
Output voltage range is from 1.21 V to 20 V. The TL1963A-xx regulators are stable with output capacitors as low
as 10 μF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other
regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and
reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, and 3.3 V,
and as an adjustable device with a 1.21-V reference voltage. The TL1963A-xx regulators are available in the
5-pin TO-263 (KTT), 6-pin TO-223 (DCQ), and 3-pin SOT-223 (DCY) packages.
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD, PowerFLEX are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2009, Texas Instruments Incorporated
TL1963A-xx
SLVS719E – JUNE 2008 – REVISED AUGUST 2009........................................................................................................................................................ www.ti.com
ORDERING INFORMATION (1)
VOUT
(TYP)
TA
PACKAGE
1.5 V
1.8 V
–40°C to 125°C
2.5 V
3.3 V
ADJ
(1)
(2)
(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
TO-263 – KTT
Reel of 500
TL1963A-15KTTR
TL1963A-15
TO-223 – DCQ
Reel of 2500
TL1963A-15DCQR
1963A-15
SOT-223 – DCY
Reel of 2500
TL1963A-15DCYR
TF
TO-263 – KTT
Reel of 500
TL1963A-18KTTR
TL1963A-18
TO-223 – DCQ
Reel of 2500
TL1963A-18DCQR
1963A-18
SOT-223 – DCY
Reel of 2500
TL1963A-18DCYR
TG
TO-263 – KTT
Reel of 500
TL1963A-25KTTR
TL1963A-25
TO-223 – DCQ
Reel of 2500
TL1963A-25DCQR
1963A-25
SOT-223 – DCY
Reel of 2500
TL1963A-25DCYR
TH
TO-263 – KTT
Reel of 500
TL1963A-33KTTR
TL1963A-33
TO-223 – DCQ
Reel of 2500
TL1963A-33DCQR
1963A-33
SOT-223 – DCY
Reel of 2500
TL1963A-33DCYR
TJ
TO-263 – KTT
Reel of 500
TL1963AKTTR
TL1963A
TO-223 – DCQ
Reel of 2500
TL1963ADCQR
TL1963A
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
Table 1. TERMINAL FUNCTIONS
NAME
SHDN
2
NO.
DCQ
1
DCY
—
DESCRIPTION
KTT
1
Shutdown. The SHDN pin is used to put the TL1963A-xx regulators into a low-power shutdown
state. The output is off when the SHDN pin is pulled low. The SHDN pin can be driven either by
5-V logic or open-collector logic with a pullup resistor. The pullup resistor is required to supply
the pullup current of the open-collector gate, normally several microamperes, and the SHDN pin
current, typically 3 μA. If unused, the SHDN pin must be connected to VIN. The device is in the
low-power shutdown state if the SHDN pin is not connected.
IN
2
1
2
Input. Power is supplied to the device through the IN pin. A bypass capacitor is required on this
pin if the device is more than six inches away from the main input filter capacitor. In general, the
output impedance of a battery rises with frequency, so it is advisable to include a bypass
capacitor in battery-powered circuits. A bypass capacitor (ceramic) in the range of 1 μF to
10 μF is sufficient. The TL1963A-xx regulators are designed to withstand reverse voltages on
the IN pin with respect to ground and the OUT pin. In the case of a reverse input, which can
happen if a battery is plugged in backwards, the device acts as if there is a diode in series with
its input. There is no reverse current flow into the regulator, and no reverse voltage appears at
the load. The device protects both itself and the load.
GND
3, 6
2, 4
3
Ground
OUT
4
3
4
Output. The output supplies power to the load. A minimum output capacitor (ceramic) of 10 μF
is required to prevent oscillations. Larger output capacitors are required for applications with
large transient loads to limit peak voltage transients.
ADJ
5
—
5
Adjust. For the adjustable TL1963A, this is the input to the error amplifier. This pin is clamped
internally to ±7 V. It has a bias current of 3 μA that flows into the pin. The ADJ pin voltage is
1.21 V referenced to ground, and the output voltage range is 1.21 V to 20 V.
5
Sense. For fixed voltage versions of the TL1963A-xx (TL1963A-1.5, TL1963A-1.8,
TL1963A-2.5, and TL1963A-3.3), the SENSE pin is the input to the error amplifier. Optimum
regulation is obtained at the point where the SENSE pin is connected to the OUT pin of the
regulator. In critical applications, small voltage drops are caused by the resistance (RP) of PC
traces between the regulator and the load. These may be eliminated by connecting the SENSE
pin to the output at the load as shown in Figure 32. Note that the voltage drop across the
external PC traces adds to the dropout voltage of the regulator. The SENSE pin bias current is
600 μA at the rated output voltage. The SENSE pin can be pulled below ground (as in a dual
supply system in which the regulator load is returned to a negative supply) and still allow the
device to start and operate.
SENSE
5
—
Thermal Pad
—
—
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For the KTT package, the exposed thermal pad is connected to ground and must be soldered to
the PCB for rated thermal performance.
Copyright © 2008–2009, Texas Instruments Incorporated
TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
ABSOLUTE MAXIMUM RATINGS (1)
over operating free-air temperature range (unless otherwise noted)
IN
–20 V to 20 V
OUT
VIN
–20 V to 20 V
Input-to-output differential
Input voltage range
(2)
–20 V to 20 V
SENSE
–20 V to 20 V
ADJ
–7 V to 7 V
SHDN
–20 V to 20 V
tshort
Output short-circuit duration
Tlead
Maximum lead temperature
TJ
Operating virtual-junction temperature range
–40°C to 125°C
Tstg
Storage temperature range
–65°C to 150°C
(1)
(2)
Indefinite
10-second soldering time
300°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Absolute maximum input-to-output differential voltage cannot be achieved with all combinations of rated IN pin and OUT pin voltages.
With the IN pin at 20 V, the OUT pin may not be pulled below 0 V. The total measured voltage from IN to OUT cannot exceed ±20 V.
PACKAGE THERMAL DATA (1)
(1)
(2)
θJP
(2)
PACKAGE
BOARD
θJA
θJC
SOT-223 (DCY)
High K, JESD 51-5
48.3°C/W
30.6°C/W
TO-223 (DCQ)
High K, JESD 51-5
53°C/W
15°C/W
—
TO-263 (KTT)
High K, JESD 51-5
26.5°C/W
24.1°C/W
0.38°C/W
—
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
For packages with exposed thermal pads, such as QFN, PowerPAD™, and PowerFLEX™, θJP is defined as the thermal resistance
between the die junction and the bottom of the exposed pad.
Copyright © 2008–2009, Texas Instruments Incorporated
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TL1963A-xx
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ELECTRICAL CHARACTERISTICS (1)
Over operating temperature range TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
Minimum input voltage
VIN
(3)
(4)
Full range
2.1
2.5
25°C
1.477
1.500
1.523
Full range
1.447
1.500
1.545
25°C
1.773
1.800
1.827
Full range
1.737
1.800
1.854
25°C
2.462
2.500
2.538
Full range
2.412
2.500
2.575
25°C
3.250
3.300
3.350
Full range
3.200
3.300
3.400
25°C
1.192
1.21
1.228
VIN = 2.5 V to 20 V,
ILOAD = 1 mA to 1.5 A
Full range
1.174
1.21
1.246
TL1963A-1.5
ΔVIN = 2.21 V to 20 V,
ILOAD = 1 mA
Full range
2
6
TL1963A-1.8
ΔVIN = 2.3 V to 20 V,
ILOAD = 1 mA
Full range
2.5
7
TL1963A-2.5
ΔVIN = 3 V to 20 V,
ILOAD = 1 mA
Full range
3
10
TL1963A-3.3
ΔVIN = 3.8 V to 20 V,
ILOAD = 1 mA
Full range
3.5
10
TL1963A (3)
ΔVIN = 2.21 V to 20 V,
ILOAD = 1 mA
Full range
1.5
5
TL1963A-1.5
VIN = 2.5 V,
ΔILOAD = 1 mA to 1.5 A
TL1963A-1.8
VIN = 2.8 V,
ΔILOAD = 1 mA to 1.5 A
Regulated output voltage (5)
VIN = 2.5 V to 20 V,
ILOAD = 1 mA to 1.5 A
VIN = 2.8 V to 20 V,
ILOAD = 1 mA to 1.5 A
VIN = 3 V, ILOAD = 1 mA
TL1963A-2.5
VIN = 3.5 V to 20 V,
ILOAD = 1 mA to 1.5 A
VIN = 3.8 V, ILOAD = 1 mA
TL1963A-3.3
VIN = 4.3 V to 20 V,
ILOAD = 1 mA to 1.5 A
VIN = 2.21 V, ILOAD = 1 mA
Line regulation
Load regulation
TL1963A
(2)
(3)
(4)
(5)
4
25°C
25°C
25°C
Full range
TL1963A-3.3
VIN = 4.3 V,
ΔILOAD = 1 mA to 1.5 A
Full range
25°C
25°C
Full range
UNIT
V
V
V
mV
9
18
2
Full range
VIN = 3.5 V,
ΔILOAD = 1 mA to 1.5 A
VIN = 2.5 V,
ΔILOAD = 1 mA to 1.5 A
2
Full range
TL1963A-2.5
TL1963A (3)
(1)
MAX
ILOAD = 1.5 A
VIN = 2.3 V, ILOAD = 1 mA
(5)
(2)
1.9
TL1963A-1.8
ADJ pin voltage (3)
TYP
25°C
VIN = 2.21 V, ILOAD = 1 mA
VADJ
MIN
ILOAD = 0.5 A
TL1963A-1.5
VOUT
TJ
10
20
2.5
15
30
3
mV
20
70
2
8
18
The TL1963A-xx regulators are tested and specified under pulse load conditions such that TJ TA. The TL1963A-xx is fully tested at
TA = 25°C. Performance at –40°C and 125°C is specified by design, characterization, and correlation with statistical process controls.
Typical values represent the likely parametric nominal values determined at the time of characterization. Typical values depend on the
application and configuration and may vary over time. Typical values are not ensured on production material.
The TL1963A (adjustable version) is tested and specified for these conditions with the ADJ pin connected to the OUT pin.
For the TL1963A, TL1963A-1.5 and TL1963A-1.8, dropout voltages are limited by the minimum input voltage specification under some
output voltage/load conditions.
Operating conditions are limited by maximum junction temperature. The regulated output voltage specification does not apply for all
possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage range must be limited.
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TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
ELECTRICAL CHARACTERISTICS
(1)
(continued)
Over operating temperature range TJ = –40°C to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VDROPOUT
Output voltage noise
IADJ
ADJ pin bias current (3)
I SHDN
0.27
0.34
Full range
0.45
0.55
ILOAD = 0 mA
Full range
1
1.5
ILOAD = 1 mA
Full range
1.1
1.6
ILOAD = 100 mA
Full range
3.8
5.5
ILOAD = 500 mA
Full range
15
25
ILOAD = 1.5 A
Full range
80
120
25°C
40
25°C
Full range
VOUT = ON to OFF
Full range
0.25
3
10
0.9
2
0.75
25°C
0.01
1
V SHDN = 20 V
25°C
3
30
Quiescent current in
shutdown
VIN = 6 V, V SHDN = 0 V
25°C
0.01
1
Ripple rejection
VIN – VOUT = 1.5 V (avg), VRIPPLE = 0.5 VP-P,
fRIPPLE = 120 Hz, ILOAD = 0.75 A
25°C
IIL
Input reverse leakage
current
Reverse output current (10)
VIN = 7 V, VOUT = 0 V
55
25°C
VIN = VOUT(NOMINAL) + 1
Full range
VIN = –20 V, VOUT = 0 V
Full range
mA
μVRMS
V SHDN = 0 V
Current limit
V
0.35
25°C
VOUT = OFF to ON
UNIT
0.17
0.22
0.19
Full range
(9)
SHDN pin current
ILIMIT
IRO
0.1
25°C
COUT = 10 μF, ILOAD = 1.5 A,
BW = 10 Hz to 100 kHz
Shutdown threshold
0.06
Full range
ILOAD = 1.5 A
eN
MAX
0.02
0.1
25°C
ILOAD = 100 mA
Dropout voltage
VIN = VOUT(NOMINAL)
GND pin current (7) (8)
VIN = VOUT(NOMINAL) + 1
(2)
TYP
Full range
ILOAD = 500 mA
IGND
MIN
25°C
ILOAD = 1 mA
(4) (6) (7)
TJ
63
μA
V
μA
μA
dB
2
A
1.6
1
TL1963A-1.5
VOUT = 1.5 V, VIN < 1.5 V
25°C
600
1200
TL1963A-1.8
VOUT = 1.8 V, VIN < 1.8 V
25°C
600
1200
TL1963A-2.5
VOUT = 2.5 V, VIN < 2.5 V
25°C
600
1200
TL1963A-3.3
VOUT = 3.3 V, VIN < 3.3 V
25°C
600
1200
TL1963A
VOUT = 1.21 V, VIN < 1.21 V
25°C
300
600
mA
μA
(6)
Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In
dropout, the output voltage is equal to: VIN – VDROPOUT.
(7) To satisfy requirements for minimum input voltage, the TL1963A (adjustable version) is tested and specified for these conditions with an
external resistor divider (two 4.12-kΩ resistors) for an output voltage of 2.4 V. The external resistor divider adds a 300-mA DC load on
the output.
(8) GND pin current is tested with VIN = (VOUT(NOMINAL) + 1 V) and a current source load. The GND pin current decreases at higher input
voltages.
(9) ADJ pin bias current flows into the ADJ pin.
(10) Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the
OUT pin and out the GND pin.
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TYPICAL CHARACTERISTICS
DROPOUT VOLTAGE
vs
OUTPUT CURRENT
DROPOUT VOLTAGE
vs
TEMPERATURE
500
480
450
IOUT = 1.5 A
400
Dropout Voltage – mV
Dropout Voltage – mV
360
350
TA = 125°C
300
250
200
TA = 25°C
150
240
IOUT = 0.5 A
IOUT = 100 mA
120
100
50
IOUT = 1 mA
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
-50
1.6
-25
0
Output Current – A
75
100
125
Figure 2.
QUIESCENT CURRENT
vs
TEMPERATURE
OUTPUT VOLTAGE
vs
TEMPERATURE
100
125
1.84
VIN = 6 V
1.4
1.3
VTL1963A-1.8
OUT Fixed 1.8 V
IIOUT
OUT = 1 mA
1.83
IOUT = 0 A
VSHDN = VIN
1.82
1.2
1.1
Output Voltage – V
Quiescent Current – mA
50
Figure 1.
1.5
VOUT
Fixed 3.3 V
TL1963A-3.3
1
0.9
VOUT Adjustable
TL1963A
(Adjustable)
0.8
1.81
1.8
1.79
1.78
0.7
1.77
0.6
0.5
-50
1.76
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 3.
6
25
TA – Free-Air Temperature – °C
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100
125
-50
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 4.
Copyright © 2008–2009, Texas Instruments Incorporated
TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS (continued)
OUTPUT VOLTAGE
vs
TEMPERATURE
OUTPUT VOLTAGE
vs
TEMPERATURE
2.58
2.56
3.38
VOUT Fixed 2.5 V
TL1963A-2.5
IIOUT
= 1 mA
OUT = 1 mA
3.34
Output Voltage – V
2.54
Output Voltage – V
VTL1963A-3.3
OUT Fixed 3.3 V
IOUT = 1 mA
IOUT
3.36
2.52
2.5
2.48
3.32
3.3
3.28
2.46
3.26
2.44
3.24
2.42
-50
3.22
-25
0
25
50
75
100
-50
125
-25
0
Figure 5.
Figure 6.
OUTPUT VOLTAGE
vs
TEMPERATURE
QUIESCENT CURRENT
vs
INPUT VOLTAGE
1.23
100
125
TJ = 25°C
VOUT Adjustable
TL1963A (Adjustable)
IIOUT
= 1 mA
OUT = 1 mA
VIN
V
V
IN = 6 V
ROUT = 4.3 k W
1
1.215
1.21
1.205
1.2
VSHDN = VIN
VOUT Adjustable
TL1963A
(Adjustable)
0.8
0.6
0.4
0.2
1.195
1.19
-50
75
1.2
Quiescent Current – mA
Output Voltage – V
1.22
50
TA – Free-Air Temperature – °C
TA – Free-Air Temperature – °C
1.225
25
0
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 7.
Copyright © 2008–2009, Texas Instruments Incorporated
100
125
0
2
4
6
8
10
12
14
16
18
20
Input Voltage – V
Figure 8.
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TYPICAL CHARACTERISTICS (continued)
GROUND CURRENT
vs
INPUT VOLTAGE
GROUND CURRENT
vs
INPUT VOLTAGE
10
100
TJ = 25°C
90
VSHDN = VIN
TL1963A
(Adjustable)
VOUT Adjustable
80
TL1963A
(Adjustable)
VOUT Adjustable
8
VOUT = 1.21 V
70
VOUT = 1.21 V
60
Ground Current – mA
Ground Current – mA
TJ = 25°C
VSHDN = VIN
IOUT = 1.5 A
50
40
IOUT = 1 A
30
6
IOUT = 300 mA
4
IOUT = 100 mA
20
2
IOUT = 0.5 A
10
IOUT = 10 mA
0
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
Input Voltage – V
Input Voltage – V
Figure 9.
Figure 10.
GROUND CURRENT
vs
INPUT VOLTAGE
GROUND CURRENT
vs
INPUT VOLTAGE
40
8
9
10
120
TJ = 25°C
TJ = 25°C
VSHDN = VIN
35
VSHDN = VIN
100
VOUT Fixed 3.3 V
TL1963A-3.3
TL1963A-3.3
VOUT Fixed 3.3 V
Ground Current – mA
Ground Current – mA
30
25
IOUT = 300 mA
20
IOUT = 100 mA
15
IOUT = 10 mA
80
IOUT = 1.5 A
60
40
IOUT = 1 A
10
20
IOUT = 0.5 A
5
0
0
0
1
2
3
4
5
6
Input Voltage – V
Figure 11.
8
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7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
Input Voltage – V
Figure 12.
Copyright © 2008–2009, Texas Instruments Incorporated
TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS (continued)
GROUND CURRENT
vs
OUTPUT CURRENT
SHDN INPUT CURRENT
vs
TEMPERATURE
1
80
VIN = VOUT(nom) + 1
VSHDN = 0 V
70
SHDN Input Current – µA
Ground Current – mA
60
50
40
30
20
0.75
0.5
0.25
10
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
-50
1.6
-25
0
25
50
75
100
125
100
125
TA – Free-Air Temperature – °C
Output Current – A
Figure 13.
Figure 14.
SHDN INPUT CURRENT
vs
SHDN INPUT VOLTAGE
SHDN THRESHOLD (OFF TO ON)
vs
TEMPERATURE
2.5
1
2.25
0.9
2
0.8
SHDN Input Voltage – V
SHDN Input Current – µA
IOUT = 1 mA
1.75
1.5
1.25
1
0.75
0.7
0.6
0.5
0.4
0.3
0.5
0.2
0.25
0.1
0
0
2
4
6
8
10
12
14
SHDN Input Voltage – V
Figure 15.
Copyright © 2008–2009, Texas Instruments Incorporated
16
18
20
0
-50
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 16.
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TYPICAL CHARACTERISTICS (continued)
SHDN THRESHOLD (ON TO OFF)
vs
TEMPERATURE
ADJ BIAS CURRENT
vs
TEMPERATURE
5
1
0.9
4.5
0.8
4
0.7
3.5
ADJ Bias Current – µA
SHDN Input Voltage – V
IOUT = 1 mA
0.6
0.5
0.4
0.3
3
2.5
2
1.5
0.2
1
0.1
0.5
0
-50
-25
0
25
50
75
100
0
-50
125
-25
0
25
50
75
100
125
100
125
TA – Free-Air Temperature – °C
TA – Free-Air Temperature – °C
Figure 17.
Figure 18.
CURRENT LIMIT
vs
INPUT/OUTPUT DIFFERENTIAL VOLTAGE
CURRENT LIMIT
vs
TEMPERATURE
3.5
5
D
?VOUT = 100 mV
VIN = 7 V
VOUT = 0 V
3
TA = -40°C
4
TA = 25°C
Current Limit – A
Current Limit – A
2.5
2
TA = 125°C
1.5
3
2
1
1
0.5
0
0
2
4
6
8
10
12
14
16
Input/Output Differential Voltage – V
Figure 19.
10
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18
20
0
-50
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 20.
Copyright © 2008–2009, Texas Instruments Incorporated
TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS (continued)
REVERSE OUTPUT CURRENT
vs
OUTPUT VOLTAGE
REVERSE OUTPUT CURRENT
vs
TEMPERATURE
12
1000
TJ = 25°C
VIN = 0 V
VIN = 0 V
Current flows into OUT pin
Reverse Output Current – µA
Reverse Output Current – mA
10
8
VOUT(Adjustable)
Adjustable
TL1963A
VOUT =VVOUT
ADJ = VADJ
6
4
2
800
600
VOUT
Fixed 3.3V
TL1963A-3.3
VOUT= =3.3
3.3VV
VOUT
400
V
OUT Adjustable
TL1963A
(Adjustable)
VOUT
= 1.21
1.21VV
OUT =
200
0
VOUT
Fixed 3.3 V
TL1963A-3.3
VOUT= =VVFB
VOUT
FB
-2
0
2
4
6
8
0
-50
10
-25
Output Voltage – V
0
25
50
75
100
125
100
125
TA – Free-Air Temperature – °C
Figure 21.
Figure 22.
RIPPLE REJECTION
vs
FREQUENCY
LOAD REGULATION
vs
TEMPERATURE
80
20
IOUT = 1.5 A
15
70
10
Load Regulation – mV
Ripple Rejection – dB
60
50
40
30
20
10
VIN = 2.7 V
VIN = 2.7 V
CIN = 0
CIN = 0
COUT = 10 µF (ceramic)
COUT = 10 µF
IOUT = 750 mA
IOUT = 750 mA
VRipple = 0.05 VPP
VRipple = 0.05 Vpp
TA = 25°C
100
1000
1k
0
-5
-10
-15
TL1963A-1.8
VOUT
Fixed 1.8 V
TL1963A-2.5
VOUT
Fixed 2.5 V
-20
-25
TL1963A-3.3
VOUT
Fixed 3.3 V
-30
-35
0
10
TL1963A
VOUT(Adjustable)
Adjustable
5
10000
10k
Frequency – Hz
Figure 23.
Copyright © 2008–2009, Texas Instruments Incorporated
100000
100k
100000
1M
-50
-25
0
25
50
75
TA – Free-Air Temperature – °C
Figure 24.
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TYPICAL CHARACTERISTICS (continued)
OUTPUT NOISE VOLTAGE
vs
FREQUENCY
LOAD TRANSIENT RESPONSE
1
V
= 4.3 V
VIN
IN = 4.3 V
CIN
C
µF
IN = 10 µF
COUT == 10
C
10 µF
µF (ceramic)
Change in
Outupt Voltage
OUT
TL1963A-3.3
V
OUT Fixed 3.3 V
0.1
Load Current
Output Noise
Hz
Output
NoiseVoltage
Voltage––µV/
µVÖRMS
10(ceramic)
µF
COUTC=OUT
10=µF
IOUT =IOUT
1.5=A1.5 A
TL1963A
(Adjustable)
VOUT Adjustable
0.01
10
100
1k
Frequency - Hz
10k
20 mV
VOUT
0 mV
-20 mV
500 mA
IOUT
10 mA
100k
500 µs per division
Figure 25.
Figure 26.
LOAD TRANSIENT RESPONSE
VININ == 4.3
4.3VV
V
CININ ==10
10 µF
µF
C
=
OUT
C
=10
10µF
µF(ceramic)
Change in
Outupt Voltage
OUT
VOUT
20 mV
0 mV
Load Current
-20 mV
1.5 A
IOUT
10 mA
500 µs per division
Figure 27.
12
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TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
APPLICATION INFORMATION
The TL1963A-xx series are 1.5-A LDO regulators optimized for fast transient response. The devices are capable
of supplying 1.5 A at a dropout voltage of 340 mV. The low operating quiescent current (1 mA) drops to less
than 1 μA in shutdown. In addition to the low quiescent current, the TL1963A-xx regulators incorporate several
protection features which make them ideal for use in battery-powered systems. The devices are protected
against both reverse input and reverse output voltages. In battery-backup applications where the output can be
held up by a backup battery when the input is pulled to ground, the TL1963A-xx acts as if it has a diode in series
with its output and prevents reverse current flow. Additionally, in dual-supply applications where the regulator
load is returned to a negative supply, the output can be pulled below ground by as much as 20 V and still allow
the device to start and operate.
Typical Applications
IN
10 µF
(ceramic)
VIN > 3 V
2.5 V at 1.5 A
OUT
10 µF
(ceramic)
TL1963A-2.5
SENSE
SHDN
GND
Figure 29. 3.3 V to 2.5 V Regulator
R5
0.01 W
TL1963A-1.8
OUT
IN
VIN > 2.7 V
C1
10 µF
R1
1 kW
+
LOAD
SHDN SENSE
GND
R2
80.6 kW
R4
2.2 kW
R6
2.2 kW
C3
1 µF
R3
2 kW
+
C2
3.3 µF
R8
100 kW
R7
470 kW
-
NOTE: All capacitors are ceramic.
Figure 30. Adjustable Current Source
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R1
0.01 W
IN
VIN > 3.7 V
3.3 V at 3 A
OUT
TL1963A-3.3
C1
10 µF
C2
22 µF
SHDN SENSE
GND
R2
0.01 W
IN
OUT
R6
6.65 kW
TL1963A
SHDN
SHDN SENSE
GND
R7
4.12 kW
R3
2.2 kW
R4
2.2 kW
R5
1 kW
+
–
C3
0.01 µF
NOTE: All capacitors are ceramic.
Figure 31. Paralleling Regulators for Higher Output Current
RP
IN
OUT
TL1963A
VIN
SHDN
SENSE
Load
GND
RP
Figure 32. Kelvin Sense Connection
Adjustable Operation
The adjustable version of the TL1963A has an output voltage range of 1.21 V to 20 V. The output voltage is set
by the ratio of two external resistors as shown in Figure 33. The device maintains the voltage at the ADJ pin at
1.21 V referenced to ground. The current in R1 is then equal to 1.21 V / R1, and the current in R2 is the current
in R1 plus the ADJ pin bias current. The ADJ pin bias current, 3 μA at 25°C, flows through R2 into the ADJ pin.
The output voltage can be calculated using the formula shown in Figure 33. The value of R1 should be less than
4.17 kΩ to minimize errors in the output voltage caused by the ADJ pin bias current. Note that in shutdown the
output is turned off, and the divider current is zero.
14
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TL1963A-xx
www.ti.com........................................................................................................................................................ SLVS719E – JUNE 2008 – REVISED AUGUST 2009
IN
VOUT
OUT
TL1963A
R2
VIN
ADJ
GND
R1
R2
+ (I ADJ)(R2)
VOUT = 1.21 V )1 +
R1)
VADJ = 1.21 V
IADJ = 3 µA at 25°C
Output range = 1.21 V to 20 V
Figure 33. Adjustable Operation
The adjustable device is tested and specified with the ADJ pin tied to the OUT pin for an output voltage of
1.21 V. Specifications for output voltages greater than 1.21 V are proportional to the ratio of the desired output
voltage to 1.21 V: VOUT/1.21 V. For example, load regulation for an output current change of 1 mA to 1.5 A is
–3 mV (typ) at VOUT = 1.21 V. At VOUT = 5 V, load regulation is:
(5 V/1.21 V)(–3 mV) = –12.4 mV
Output Capacitance and Transient Response
The TL1963A-xx regulators are designed to be stable with a wide range of output capacitors. The ESR of the
output capacitor affects stability, most notably with small capacitors. A minimum output capacitor of 10 μF with
an ESR of 3 Ω or less is recommended to prevent oscillations. Larger values of output capacitance can decrease
the peak deviations and provide improved transient response for larger load current changes. Bypass capacitors,
used to decouple individual components powered by the TL1963A-xx, increase the effective output capacitor
value.
Extra consideration must be given to the use of ceramic capacitors. Ceramic capacitors are manufactured with a
variety of dielectrics, each with different behavior over temperature and applied voltage. The most common
dielectrics used are Z5U, Y5V, X5R and X7R. The Z5U and Y5V dielectrics are good for providing high
capacitances in a small package, but exhibit strong voltage and temperature coefficients. When used with a 5-V
regulator, a 10-μF Y5V capacitor can exhibit an effective value as low as 1 μF to 2 μF over the operating
temperature range. The X5R and X7R dielectrics result in more stable characteristics and are more suitable for
use as the output capacitor. The X7R type has better stability across temperature, while the X5R is less
expensive and is available in higher values.
Voltage and temperature coefficients are not the only sources of problems. Some ceramic capacitors have a
piezoelectric response. A piezoelectric device generates voltage across its terminals due to mechanical stress,
similar to the way a piezoelectric accelerometer or microphone works. For a ceramic capacitor the stress can be
induced by vibrations in the system or thermal transients.
Overload Recovery
Like many IC power regulators, the TL1963A-xx has safe operating area protection. The safe area protection
decreases the current limit as input-to-output voltage increases and keeps the power transistor inside a safe
operating region for all values of input-to-output voltage. The protection is designed to provide some output
current at all values of input-to-output voltage up to the device breakdown.
When power is first turned on, as the input voltage rises, the output follows the input, allowing the regulator to
start up into very heavy loads. During start up, as the input voltage is rising, the input-to-output voltage
differential is small, allowing the regulator to supply large output currents. With a high input voltage, a problem
can occur wherein removal of an output short does not allow the output voltage to recover. Other regulators also
exhibit this phenomenon, so it is not unique to the TL1963A-xx.
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The problem occurs with a heavy output load when the input voltage is high and the output voltage is low.
Common situations are immediately after the removal of a short circuit or when the shutdown pin is pulled high
after the input voltage has already been turned on. The load line for such a load may intersect the output current
curve at two points. If this happens, there are two stable output operating points for the regulator. With this
double intersection, the input power supply may need to be cycled down to zero and brought up again to make
the output recover.
Output Voltage Noise
The TL1963A-xx regulators have been designed to provide low output voltage noise over the 10-Hz to 100-kHz
bandwidth while operating at full load. Output voltage noise is typically 40 nV/√Hz over this frequency bandwidth
for the TL1963A (adjustable version). For higher output voltages (generated by using a resistor divider), the
output voltage noise is gained up accordingly. This results in RMS noise over the 10-Hz to 100-kHz bandwidth of
14 μVRMS for the TL1963A, increasing to 38 μVRMS for the TL1963A-3.3.
Higher values of output voltage noise may be measured when care is not exercised with regards to circuit layout
and testing. Crosstalk from nearby traces can induce unwanted noise onto the output of the TL1963A-xx.
Power-supply ripple rejection must also be considered; the TL1963A-xx regulators do not have unlimited
power-supply rejection and pass a small portion of the input noise through to the output.
Thermal Considerations
The power handling capability of the device is limited by the maximum rated junction temperature (125°C). The
power dissipated by the device is made up of two components:
1. Output current multiplied by the input/output voltage differential: IOUT(VIN – VOUT)
2. GND pin current multiplied by the input voltage: IGNDVIN.
The GND pin current can be found using the GND Pin Current graphs in Typical Characteristics. Power
dissipation is equal to the sum of the two components listed above.
The TL1963A-xx series regulators have internal thermal limiting designed to protect the device during overload
conditions. For continuous normal conditions, the maximum junction temperature rating of 125°C must not be
exceeded. It is important to give careful consideration to all sources of thermal resistance from junction to
ambient. Additional heat sources mounted nearby must also be considered.
For surface-mount devices, heat sinking is accomplished by using the heat-spreading capabilities of the PC
board and its copper traces. Copper board stiffeners and plated through-holes also can be used to spread the
heat generated by power devices.
Table 2 lists thermal resistance for several different board sizes and copper areas. All measurements were taken
in still air on 1/16-inch FR-4 board with one-ounce copper.
Table 2. KTT Package (5-Pin TO-263)
COPPER AREA
(1)
TOPSIDE
(1)
16
BACKSIDE
BOARD AREA
THERMAL RESISTANCE
(JUNCTION TO AMBIENT)
2500 mm2
2500 mm2
2500 mm2
23°C/W
2
1000 mm
2
2500 mm
2500 mm2
25°C/W
125 mm2
2500 mm2
2500 mm2
33°C/W
Device is mounted on topside.
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TL1963A-xx
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Calculating Junction Temperature
Example: Given an output voltage of 3.3 V, an input voltage range of 4 V to 6 V, an output current range of 0 mA
to 500 mA, and a maximum ambient temperature of 50°C, what is the maximum junction temperature?
The power dissipated by the device is equal to:
IOUT(MAX)(VIN(MAX) – VOUT) + IGND(VIN(MAX))
where,
IOUT(MAX) = 500 mA
VIN(MAX) = 6 V
IGND at (IOUT = 500 mA, VIN = 6 V) = 10 mA
So,
P = 500 mA (6 V – 3.3 V) + 10 mA (6 V) = 1.41 W
Using a KTT package, the thermal resistance is in the range of 23°C/W to 33°C/W, depending on the copper
area. So the junction temperature rise above ambient is approximately equal to:
1.41 W × 28°C/W = 39.5°C
The maximum junction temperature is then be equal to the maximum junction-temperature rise above ambient
plus the maximum ambient temperature or:
TJMAX = 50°C + 39.5°C = 89.5°C
Protection Features
The TL1963A-xx regulators incorporate several protection features that make them ideal for use in
battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such
as current limiting and thermal limiting, the devices are protected against reverse input voltages, reverse output
voltages and reverse voltages from output to input.
Current limit protection and thermal overload protection are intended to protect the device against current
overload conditions at the output of the device. For normal operation, the junction temperature should not exceed
125°C.
The input of the device withstands reverse voltages of 20 V. Current flow into the device is limited to less than
1 mA (typically less than 100 μA), and no negative voltage appears at the output. The device protects both itself
and the load. This provides protection against batteries that can be plugged in backward.
The output of the TL1963A-xx can be pulled below ground without damaging the device. If the input is left open
circuit or grounded, the output can be pulled below ground by 20 V. For fixed voltage versions, the output acts
like a large resistor, typically 5 kΩ or higher, limiting current flow to typically less than 600 μA. For adjustable
versions, the output acts like an open circuit; no current flows out of the pin. If the input is powered by a voltage
source, the output sources the short-circuit current of the device and protects itself by thermal limiting. In this
case, grounding the SHDN pin turns off the device and stops the output from sourcing the short-circuit current.
The ADJ pin of the adjustable device can be pulled above or below ground by as much as 7 V without damaging
the device. If the input is left open circuit or grounded, the ADJ pin acts like an open circuit when pulled below
ground and like a large resistor (typically 5 kΩ) in series with a diode when pulled above ground.
In situations where the ADJ pin is connected to a resistor divider that would pull the ADJ pin above its 7-V clamp
voltage if the output is pulled high, the ADJ pin input current must be limited to less than 5 mA. For example, a
resistor divider is used to provide a regulated 1.5-V output from the 1.21-V reference when the output is forced to
20 V. The top resistor of the resistor divider must be chosen to limit the current into the ADJ pin to less than
5 mA when the ADJ pin is at 7 V. The 13-V difference between OUT and ADJ pins divided by the 5-mA
maximum current into the ADJ pin yields a minimum top resistor value of 2.6 kΩ.
In circuits where a backup battery is required, several different input/output conditions can occur. The output
voltage may be held up while the input is either pulled to ground, pulled to some intermediate voltage, or is left
open circuit.
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TL1963A-xx
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When the IN pin of the TL1963A-xx is forced below the OUT pin or the OUT pin is pulled above the IN pin, input
current typically drops to less than 2 μA. This can happen if the input of the device is connected to a discharged
(low voltage) battery and the output is held up by either a backup battery or a second regulator circuit. The state
of the SHDN pin has no effect on the reverse output current when the output is pulled above the input.
18
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PACKAGE OPTION ADDENDUM
www.ti.com
7-Dec-2009
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
TL1963A-15DCQR
ACTIVE
SOT-223
DCQ
6
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-15DCQT
ACTIVE
SOT-223
DCQ
6
250
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-15DCYR
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1 YEAR
TL1963A-15KTTR
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-15KTTRG3
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-15KTTT
PREVIEW
DDPAK/
TO-263
KTT
5
TBD
Call TI
Call TI
TL1963A-18DCQR
ACTIVE
SOT-223
DCQ
6
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-18DCQT
ACTIVE
SOT-223
DCQ
6
250
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-18DCYR
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1 YEAR
TL1963A-18KTTR
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-18KTTRG3
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-18KTTT
PREVIEW
DDPAK/
TO-263
KTT
5
TBD
Call TI
Call TI
TL1963A-25DCQR
ACTIVE
SOT-223
DCQ
6
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-25DCQT
ACTIVE
SOT-223
DCQ
6
250
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-25DCYR
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1 YEAR
TL1963A-25KTTR
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-25KTTRG3
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-25KTTT
PREVIEW
DDPAK/
TO-263
KTT
5
TBD
Call TI
Call TI
TL1963A-33DCQR
ACTIVE
SOT-223
DCQ
6
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-33DCQT
ACTIVE
SOT-223
DCQ
6
250
CU NIPDAU
Level-2-260C-1 YEAR
TL1963A-33DCYR
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1 YEAR
TL1963A-33KTTR
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963A-33KTTT
PREVIEW
DDPAK/
TO-263
KTT
5
TBD
Call TI
Call TI
TL1963ADCQR
ACTIVE
SOT-223
DCQ
6
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
TL1963ADCQT
ACTIVE
SOT-223
DCQ
6
250
CU NIPDAU
Level-2-260C-1 YEAR
Addendum-Page 1
Green (RoHS &
no Sb/Br)
Green (RoHS &
no Sb/Br)
Green (RoHS &
no Sb/Br)
Green (RoHS &
no Sb/Br)
Green (RoHS &
no Sb/Br)
Lead/Ball Finish
MSL Peak Temp (3)
PACKAGE OPTION ADDENDUM
www.ti.com
7-Dec-2009
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
TL1963AKTTR
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
TL1963AKTTRG3
ACTIVE
DDPAK/
TO-263
KTT
5
500
Green (RoHS &
no Sb/Br)
CU SN
Level-3-245C-168 HR
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
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information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
24-Aug-2009
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
TL1963A-15DCQR
SOT-223
DCQ
6
2500
330.0
12.4
6.8
TL1963A-15DCYR
SOT-223
DCY
4
2500
330.0
12.4
TL1963A-15KTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
TL1963A-18DCQR
SOT-223
DCQ
6
2500
330.0
TL1963A-18DCYR
SOT-223
DCY
4
2500
TL1963A-18KTTR
DDPAK/
TO-263
KTT
5
500
TL1963A-25DCQR
SOT-223
DCQ
6
TL1963A-25DCYR
SOT-223
DCY
4
TL1963A-25KTTR
DDPAK/
TO-263
KTT
TL1963A-33DCQR
SOT-223
TL1963A-33DCYR
SOT-223
TL1963A-33KTTR
7.3
1.88
8.0
12.0
Q3
7.05
7.4
1.9
8.0
12.0
Q3
10.6
15.8
4.9
16.0
24.0
Q2
12.4
6.8
7.3
1.88
8.0
12.0
Q3
330.0
12.4
7.05
7.4
1.9
8.0
12.0
Q3
330.0
24.4
10.6
15.8
4.9
16.0
24.0
Q2
2500
330.0
12.4
6.8
7.3
1.88
8.0
12.0
Q3
2500
330.0
12.4
7.05
7.4
1.9
8.0
12.0
Q3
5
500
330.0
24.4
10.6
15.8
4.9
16.0
24.0
Q2
DCQ
6
2500
330.0
12.4
6.8
7.3
1.88
8.0
12.0
Q3
DCY
4
2500
330.0
12.4
7.05
7.4
1.9
8.0
12.0
Q3
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.6
15.8
4.9
16.0
24.0
Q2
TL1963ADCQR
SOT-223
DCQ
6
2500
330.0
12.4
6.8
7.3
1.88
8.0
12.0
Q3
TL1963AKTTR
DDPAK/
TO-263
KTT
5
500
330.0
24.4
10.6
15.8
4.9
16.0
24.0
Q2
Pack Materials-Page 1
W
Pin1
(mm) Quadrant
PACKAGE MATERIALS INFORMATION
www.ti.com
24-Aug-2009
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
TL1963A-15DCQR
SOT-223
DCQ
6
2500
358.0
335.0
35.0
TL1963A-15DCYR
SOT-223
DCY
4
2500
340.0
340.0
38.0
TL1963A-15KTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL1963A-18DCQR
SOT-223
DCQ
6
2500
358.0
335.0
35.0
TL1963A-18DCYR
SOT-223
DCY
4
2500
340.0
340.0
38.0
TL1963A-18KTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL1963A-25DCQR
SOT-223
DCQ
6
2500
358.0
335.0
35.0
TL1963A-25DCYR
SOT-223
DCY
4
2500
340.0
340.0
38.0
TL1963A-25KTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL1963A-33DCQR
SOT-223
DCQ
6
2500
358.0
335.0
35.0
TL1963A-33DCYR
SOT-223
DCY
4
2500
340.0
340.0
38.0
TL1963A-33KTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
TL1963ADCQR
SOT-223
DCQ
6
2500
358.0
335.0
35.0
TL1963AKTTR
DDPAK/TO-263
KTT
5
500
340.0
340.0
38.0
Pack Materials-Page 2
MECHANICAL DATA
MPDS094A – APRIL 2001 – REVISED JUNE 2002
DCY (R-PDSO-G4)
PLASTIC SMALL-OUTLINE
6,70 (0.264)
6,30 (0.248)
3,10 (0.122)
2,90 (0.114)
4
0,10 (0.004) M
3,70 (0.146)
3,30 (0.130)
7,30 (0.287)
6,70 (0.264)
Gauge Plane
1
2
0,84 (0.033)
0,66 (0.026)
2,30 (0.091)
4,60 (0.181)
1,80 (0.071) MAX
3
0°–10°
0,10 (0.004) M
0,25 (0.010)
0,75 (0.030) MIN
1,70 (0.067)
1,50 (0.059)
0,35 (0.014)
0,23 (0.009)
Seating Plane
0,08 (0.003)
0,10 (0.0040)
0,02 (0.0008)
4202506/B 06/2002
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters (inches).
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Falls within JEDEC TO-261 Variation AA.
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