TS650 Datasheet, PDF (1/4 Pages) Taiwan Semiconductor Company, Ltd – Buck Switching Regulator

TS650
Buck Switching Regulator
Pin assignment:
1. Out
2. P.Gnd
3. CT
4. Gnd
5. FB
6. Vcc
7. Comp.
8. Enable
Supply Voltage Range 3 V to 30V
Output Driving Current 500mA
Oscillator Frequency up to 100KHz
General Description
The TS650 is a monolithic buck switching regulator, it is consist of an voltage reference, error amplifier, current limited set
by an external resistor, power forward modular controller and switching frequencies up to 100KHz are set by an external
capacitor.
Additionally, a chip enable feature is provided to power down reducing the supply current, and with a minimum number of
external components, the TS650 offer a simple and cost effective solution.
The TS650 is offered in SOP-8 package.
Features
Pin Descriptions
— Power forward control circuit
— Operating voltage form 3V to 30V
— Low standby current
— Current limit adjustable
— Output switch current up to 500mA
— Variable oscillator frequency up to 100KHz (max)
— Shut down control
— 1.25V voltage reference Output
Applications
Name
Output
P.Gnd
CT
Gnd
FB
Vcc
Comp.
Enable
Description
PWM Output
Power Ground
Oscillator Control
Ground
Voltage Feedback
Power Supply
Feedback Compensation
ON/OFF control
Ordering Information
— Charger
— xD-ROM, xDSL product
— DC to DC converter s
Block Diagram
Part No.
TS650CS
Operating Temp.
-20 ~ +85 ^oC
Package
SOP-8
TS650
1-4
2003/12 rev. A