LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
TYPICAL APPLICATI
LT1117
V
IN
IN
1.25V
ADJ
OUT
Battery Charger
IF
R
S
R1
R2
V
OUT
– 1.25V 1 + —
R1
IF =
R2
–R
S
1 + —
R1
∆IF
=
∆V
OUT
R2
–R
S
1 + —
R1
V
OUT
V
IN
Improving Ripple Rejection
LT1117
V
IN
10µF
+
IN
ADJ
OUT
R1
121Ω
1%
* C1 IMPROVES RIPPLE
REJECTION. X
C
SHOULD BE
≈
R1 AT RIPPLE FREQUENCY
R2
365Ω
1%
UO
+
+V
IN
S
Battery Backed Up Regulated Supply
LT1117-5
+
10µF
IN
GND
OUT
5.2V LINE
5.0V BATTERY
( )
( )
( )
LT1117 • TA10
50Ω
SELECT FOR
CHARGE RATE
LT1117-5
IN
GND
OUT
1
6.5V
+
10µF
+
100µF
LT1117 • TA13
Automatic Light Control
LT1117
V
IN
≥
16.5V
10µF
150µF
+
IN
ADJ
OUT
1.2k
100µF
C1
10µF
LT1117 • TA14
LT1117 • TA16
High Efficiency Dual Supply
FEEDBACK PATH
MUR410
3.3V OUTPUT (TYPICAL)
+
470µF
MUR410
IN
LT1117-5
OUT
GND
470µF
+5V
0.5A
+
+
10µF
1N4002
MUR410
SWITCHING
REGULATOR
IN
LT1117-5
OUT
GND
470µF
+
+
10µF
1N4002
–5V
0.5A
LT1117 • TA12
9
LINER [ LINEAR TECHNOLOGY ]
