Datasheet

LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
11
1117fd
TYPICAL APPLICATIONS
Battery Charger Battery Backed Up Regulated Supply
1117 TA08
V
OUT
V
IN
R1
IF
R
S
1.25V
ADJ
LT1117
IN
OUT
V
OUT
– 1.25V 1 +
R2
—
R1
IF =
–R
S
1 +
R2
—
R1
1
=
–R
S
1 +
R2
—
R1
()
∆IF
∆
V
OUT
()
()
100µF
5.2V LINE
5.0V BATTERY
V
IN
10µF
1117 TA09
50
SELECT FOR
CHARGE RATE
6.5V
10µF
LT1117-5
IN
GND
OUT
LT1117-5
IN
GND
OUT
++
+
Improving Ripple Rejection Automatic Light Control
R1
121
1%
5VV
IN
10µF
C1
10µF
150µF
R2
365
1%
*C1 IMPROVES RIPPLE
REJECTION. X
C
SHOULD BE
≈ R1 AT RIPPLE FREQUENCY
1117 TA10
LT1117
IN
ADJ
OUT
+
+
+
1.2k
10µF
100µF
1117 TA11
LT1117
IN
ADJ
OUT
+
+
High Effi ciency Dual Supply
+5V
0.5A
+V
IN
10µF
1117 TA12
1N4002
470µF
10µF 1N4002
470µF
MUR410
MUR410
MUR410
SWITCHING
REGULATOR
470µF
3.3V OUTPUT (TYPICAL)
–5V
0.5A
FEEDBACK PATH
LT1117-5
IN
GND
OUT
LT1117-5
IN
GND
OUT
+
+
+
+
+