Datasheet

TL1963A-xx
www.ti.com SLVS719F –JUNE 2008– REVISED MAY 2011
ELECTRICAL CHARACTERISTICS
(1)
(continued)
Over operating temperature range T
J
= –40°C to 125°C (unless otherwise noted)
PARAMETER TEST CONDITIONS T
J
MIN TYP
(2)
MAX UNIT
25°C 0.02 0.06
I
LOAD
= 1 mA
Full range 0.1
25°C 0.1 0.17
I
LOAD
= 100 mA
Full range 0.22
Dropout voltage
(4) (6) (7)
V
DROPOUT
V
V
IN
= V
OUT(NOMINAL)
25°C 0.19 0.27
I
LOAD
= 500 mA
Full range 0.35
25°C 0.34 0.45
I
LOAD
= 1.5 A
Full range 0.55
I
LOAD
= 0 mA Full range 1 1.5
I
LOAD
= 1 mA Full range 1.1 1.6
GND pin current
(7) (8)
I
GND
I
LOAD
= 100 mA Full range 3.8 5.5 mA
V
IN
= V
OUT(NOMINAL)
+ 1
I
LOAD
= 500 mA Full range 15 25
I
LOAD
= 1.5 A Full range 80 120
C
OUT
= 10 μF, I
LOAD
= 1.5 A,
e
N
Output voltage noise 25°C 40 μV
RMS
B
W
= 10 Hz to 100 kHz
I
ADJ
ADJ pin bias current
(3) (9)
25°C 3 10 μA
V
OUT
= OFF to ON Full range 0.9 2
Shutdown threshold V
V
OUT
= ON to OFF Full range 0.25 0.75
V
SHDN
= 0 V 25°C 0.01 1
I
SHDN
SHDN pin current μA
V
SHDN
= 20 V 25°C 3 30
Quiescent current in
V
IN
= 6 V, V
SHDN
= 0 V 25°C 0.01 1 μA
shutdown
V
IN
– V
OUT
= 1.5 V (avg), V
RIPPLE
= 0.5 V
P-P
,
Ripple rejection 25°C 55 63 dB
f
RIPPLE
= 120 Hz, I
LOAD
= 0.75 A
V
IN
= 7 V, V
OUT
= 0 V 25°C 2
I
LIMIT
Current limit A
V
IN
= V
OUT(NOMINAL)
+ 1 Full range 1.6
Input reverse leakage
I
IL
V
IN
= –20 V, V
OUT
= 0 V Full range 1 mA
current
TL1963A-1.5 V
OUT
= 1.5 V, V
IN
< 1.5 V 25°C 600 1200
TL1963A-1.8 V
OUT
= 1.8 V, V
IN
< 1.8 V 25°C 600 1200
I
RO
Reverse output current
(10)
TL1963A-2.5 V
OUT
= 2.5 V, V
IN
< 2.5 V 25°C 600 1200 μA
TL1963A-3.3 V
OUT
= 3.3 V, V
IN
< 3.3 V 25°C 600 1200
TL1963A V
OUT
= 1.21 V, V
IN
< 1.21 V 25°C 300 600
(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: V
IN
– V
DROPOUT
.
(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 V
IN
= (V
OUT(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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