Datasheet

LT1054
SWITCHED-CAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Shutdown threshold voltage vs Free-air temperature 1
Supply current vs Input voltage 2
Oscillator frequency vs Free-air temperature 3
Supply current in shutdown vs Input voltage 4
Average supply current vs Output current 5
Output voltage loss vs Input capacitance 6
Output voltage loss vs Oscillator frequency (10 μF) 7
Output voltage loss vs Oscillator frequency (100 μF) 8
Regulated output voltage vs Free-air temperature 9
Reference voltage change vs Free-air temperature 10
Voltage loss vs Output current 11
Table of Figures
FIGURE
Switched-Capacitor Building Block 12
Switched-Capacitor Equivalent Circuit 13
Circuit With Load Connected From V
CC
to V
OUT
14
External-Clock System 15
Basic Regulation Configuration 16
Power-Dissipation-Limiting Resistor in Series With C
IN
17
Motor-Speed Servo 18
Basic Voltage Inverter 19
Basic Voltage Inverter/Regulator 20
Negative-Voltage Doubler 21
Positive-Voltage Doubler 22
100-mA Regulating Negative Doubler 23
Dual-Output Voltage Doubler 24
5-V to ±12-V Converter 25
Strain-Gage Bridge Signal Conditioner 26
3.5-V to 5-V Regulator 27
Regulating 200-mA +12-V to −5-V Converter 28
Digitally Programmable Negative Supply 29
Positive Doubler With Regulation (5-V to 8-V Converter) 30
Negative Doubler With Regulator 31