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