LT1117-5_15 Datasheet, PDF (11/16 Pages) Linear Technology – 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V

TYPICAL APPLICATIONS
Battery Charger
LT1117
IF
V_IN
IN
OUT
1.25V
R_S
V_OUT
ADJ
R1
( ) ^{VOUT – 1.25V 1 + RR—21}
IF =
( ) ^{–RS 1 + RR—21}
( ) ^{ΔIF =}
1
ΔVOUT _{–RS 1 +} ^RR—21
1117 TA08
Improving Ripple Rejection
V_{IN +}
10μF
LT1117
IN
OUT
ADJ
R2
* C1 IMPROVES RIPPLE
REJECTION. X_C SHOULD BE
365Ω
1%
≈ R1 AT RIPPLE FREQUENCY
R1
121Ω
1%
+
+
C1
10μF
5V
150μF
1117 TA10
LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
Battery Backed Up Regulated Supply
LT1117-5
V_IN
IN
OUT
+
GND
10μF
50Ω
5.2V LINE
5.0V BATTERY
SELECT FOR
CHARGE RATE
+
6.5V
10μF
LT1117-5
IN
OUT
GND
+
100μF
1117 TA09
+
10μF
Automatic Light Control
LT1117
IN
OUT
ADJ
1.2k
+
100μF
1117 TA11
High Efficiency Dual Supply
FEEDBACK PATH
MUR410
+
3.3V OUTPUT (TYPICAL)
470μF
+V_IN
SWITCHING
REGULATOR
MUR410
LT1117-5
IN
OUT
+
GND
470μF
+
10μF
+5V
0.5A
1N4002
MUR410
LT1117-5
IN
OUT
+
GND
470μF
+
10μF
1N4002
–5V
0.5A
1117 TA12
1117fd
11