REG1117
REG1117A
www.ti.com
SBVS001D − OCTOBER 1992 − REVISED JULY 2004
ELECTRICAL CHARACTERISTICS (continued)
At T
J
= +25°C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
CURRENT LIMIT
REG1117 Models
REG1117A
MINIMUM LOAD CURRENT
Adjustable Models(1)(2)
QUIESCENT CURRENT
Fixed-Voltage Models(1)
ADJUSTABLE PIN CURRENT(1)(2)
vs Load Current, REG1117(1)
vs Load Current, REG1117A(1)
THERMAL REGULATION
All Models(4)
RIPPLE REJECTION
All Models
TEMPERATURE DRIFT
Fixed-Voltage Models
Adjustable Models
LONG-TERM STABILITY
All Models
OUTPUT NOISE
rms Noise, All Models
THERMAL RESISTANCE
Thermal Resistance,
q
JC
3-Lead SOT-223 Surface-Mount
3-Lead DDPAK Surface-Mount
Thermal Resistance,
q
JA
3-Lead DDPAK Surface-Mount
f > 50Hz
dc
(Junction-to-Case at Tab)
No Heatsink
65
°C/W
(Junction-to-Case at Tab)
15
2
3
°C/W
°C/W
°C/W
f = 10Hz to 10kHz
0.003
%
TA = 125°C, 1000Hr
0.3
%
T
J
= 0°C to +125°C
T
J
= 0°C to +125°C
0.5
2
%
%
f = 120Hz, V
IN
− V
OUT
= 3V + 1VPP Ripple
62
dB
V
IN
− V
O
= 5V
V
IN
− V
O
= 5V
V
IN
− V
O
= 13.75V
V
IN
− V
O
= 5V
I
O
= 10mA, V
IN
− V
O
= 1.4 to 10V
I
O
= 10mA to 800mA, V
IN
− V
O
= 1.4 to 10V
I
O
= 10mA to 1A, V
IN
− V
O
= 1.4 to 10V
30ms Pulse
800
1000
950
1250
1.7
4
50
0.5
0.5
0.01
1200
1600
5
10
120
5
5
0.1
mA
mA
mA
mA
µA
µA
µA
%/W
CONDITION
MIN
TYP
MAX
UNIT
(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 IO = 800mA (REG1117 models), IO = 1A (REG1117A),
VIN − VO = 1.4V (reading taken 10ms after pulse).
5
BURR-BROWN [ BURR-BROWN CORPORATION ]
