PRELIMINARY INFORMATION
TCL1117
TCL1117-2.85
TCL1117-3.30
TCL1117-5.00
800mA LOW DROPOUT POSITIVE REGULATORS
ADJUSTABLE AND FIXED 2.85V, 3.30V, 5.00V
TYPICAL APPLICATIONS (Cont.)
Battery Backed Up Regulated Supply
Improving Ripple Rejection
VIN
6.5V
+
10µF
IN TCL1117-5.00 OUT
GND
50Ω
SELECT FOR
CHARGE RATE
+
10µF
IN TCL1117-5.00 OUT
GND
5.2V LINE
5.0V BATTERY
+
100µF
VIN
+
10µF
IN TCL1117 OUT
ADJ
R1
121Ω
1%
R2
*C1 IMPROVES RIPPLE
365Ω
1%
REJECTION. XC SHOULD BE
≈ R1 AT RIPPLE FREQUENCY
+ C1*
10µF
VIN ≥ 16.5V
150µF
High Efficiency Dual Supply
FEEDBACK PATH
MUR410
+
3.3V OUTPUT (TYPICAL)
470µF
VI+N
SWITCHING
REGULATOR
MUR410
IN
+
470µF
TCL1117-5.00 OUT
GND
+
10µF
MUR410
IN
+
470µF
TCL1117-5.00 OUT
GND
+
10µF
Low Dropout Negative Supply
+5V
0.5A
1N4002
1N4002
–5V
0.5A
VIN
TCL1117-05 6/5/97
FLOATING INPUT
IN TCL1117-5.00 OUT
+
10µF
GND
+
100µF
VOUT = –5V
6