Datasheet

LTC1261L
14
1261lfa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1999
LT 0912 REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIONS
Minimum Parts Count –4.5V GeneratorLow Output Voltage Generator
2
3
5
6
LTC1261L
ADJ
OUT
C1
+
C1
–
1261L TA06
3.3µF
= V
CC
– 9.92µA (R
S
+ 124k)
= –0.5V (R
S
= 432k)
= –1V (R
S
= 487k)
1N5817
1
5V
4
0.1µF
1µF
100pF
R
S
V
OUT
V
CC
GND
124k
+
1
2
3
4
8
7
6
5
SHDN
REG
OUT
COMP
V
CC
C1
+
C1
–
GND
0.1µF
1261L TA07
3.3µF
V
OUT
= – 4.5V
AT 5mA
5V
1µF
+
LTC1261L-4.5
PART NUMBER DESCRIPTION COMMENTS
LT1121 Micropower Low Dropout Regulator with Shutdown 0.4V Dropout Voltage at 150mA, Low Noise, Switched
Capacitor Regulated Voltage Inverter
LTC1429 Clock Synchronized Switched Capacitor Regulated Voltage Inverter GaAs FET Bias
LTC1503-1.8/LTC1503-2 High Efficiency Inductorless Step-Down DC/DC Converter Fixed 1.8V or 2V Output from 2.4V to 6V Input,
I
OUT
= 100mA
LTC1514/LTC1515 Step-Up/Step-Down Switched Capacitors DC/DC Converters V
IN
: 2V to 10V, V
OUT
is Fixed or Adjustable, I
OUT
Up to
50mA
LTC1516 Micropower, Regulated 5V Charge Pump DC/DC Converter I
OUT
= 20mA (V
IN
≥ 2V), I
OUT
= 50mA (V
IN
≥ 3V)
LTC1517-5 Micropower, Regulated 5V Charge Pump DC/DC Converter LTC1522 without Shutdown and Packaged in SOT-23
LTC1522 Micropower, Regulated 5V Charge Pump DC/DC Converter I
OUT
= 10mA (V
IN
≥ 2.7V), I
OUT
= 20mA (V
IN
≥ 3V)
LTC1550L/LTC1551L Low Noise Switched Capacitor Regulated Voltage Inverter GaAs FET Bias with Linear Regulator, <1mV Ripple, MSOP
LTC1555/LTC1556 Sim Power Supply and Level Translator Step-Up/Step-Down Sim Power Supply and Level
Translators
LT1611 1.4MHz Inverting Mode Switching Regulator –5V at 150mA from a 5V Input, 5-lead SOT-23
LT1614 Inverting 600kHz Switching Regulator with Low Battery Detector –5V at 200mA from 5V Input in MSOP
LT1617/LT1617-1 Micropower Inverting DC/DC Converters –15V at 12mA from 2.5V Input, 5-lead SOT-23
LTC1682/LTC1682-3.3/
LTC1682-5
Low Noise Doubler Charge Pumps Output Noise = 60µV
RMS
, 2.5V to 5.5V Output
LTC1754-5 Micropower, Regulated 5V Charge Pump with Shutdown in SOT-23 I
CC
= 13µA, I
OUT
= 50mA (V
IN
≥ 3V), I
OUT
= 25mA
(V
IN
≥ 2.7V)