Datasheet

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SBVS001D − OCTOBER 1992 − REVISED JULY 2004
www.ti.com
5
ELECTRICAL CHARACTERISTICS (continued)
At T
J
= +25°C, unless otherwise noted.
REG1117, REG1117A
PARAMETER UNITMAXTYPMINCONDITION
CURRENT LIMIT
REG1117 Models V
IN
− V
O
= 5V 800 950 1200 mA
REG1117A V
IN
− V
O
= 5V 1000 1250 1600 mA
MINIMUM LOAD CURRENT
Adjustable Models
(1)(2)
V
IN
− V
O
= 13.75V 1.7 5 mA
QUIESCENT CURRENT
Fixed-Voltage Models
(1)
V
IN
− V
O
= 5V 4 10 mA
ADJUSTABLE PIN CURRENT
(1)(2)
I
O
= 10mA, V
IN
− V
O
= 1.4 to 10V 50 120 µA
vs Load Current, REG1117
(1)
I
O
= 10mA to 800mA, V
IN
− V
O
= 1.4 to 10V 0.5 5 µA
vs Load Current, REG1117A
(1)
I
O
= 10mA to 1A, V
IN
− V
O
= 1.4 to 10V 0.5 5 µA
THERMAL REGULATION
All Models
(4)
30ms Pulse 0.01 0.1 %/W
RIPPLE REJECTION
All Models f = 120Hz, V
IN
− V
OUT
= 3V + 1V
PP
Ripple 62 dB
TEMPERATURE DRIFT
Fixed-Voltage Models T
J
= 0°C to +125°C 0.5 %
Adjustable Models T
J
= 0°C to +125°C 2 %
LONG-TERM STABILITY
All Models T
A
= 125°C, 1000Hr 0.3 %
OUTPUT NOISE
rms Noise, All Models f = 10Hz to 10kHz 0.003 %
THERMAL RESISTANCE
Thermal Resistance, q
JC
(Junction-to-Case at Tab)
3-Lead SOT-223 Surface-Mount 15 °C/W
3-Lead DDPAK Surface-Mount f > 50Hz 2 °C/W
dc 3 °C/W
Thermal Resistance, q
JA
(Junction-to-Case at Tab)
3-Lead DDPAK Surface-Mount No Heatsink 65 °C/W
(1)
Specification applies over the full specified junction temperature range, 0°C to +125°C.
(2)
REG1117 and REG1117A adjustable versions require a minimum load current for ±3% regulation.
(3)
Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
(4)
Percentage change in unloaded output voltage before versus after a 30ms power pulse of I
O
= 800mA (REG1117 models), I
O
= 1A (REG1117A),
V
IN
− V
O
= 1.4V (reading taken 10ms after pulse).