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
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
Pin Descriptions
Name
Output
P.Gnd
CT
Gnd
FB
Vcc
Comp.
Enable
PWM Output
Power Ground
Oscillator Control
Ground
Voltage Feedback
Power Supply
Feedback Compensation
ON/OFF control
Description
Applications
Charger
xD-ROM, xDSL product
DC to DC converter s
Ordering Information
Part No.
TS650CS
Operating Temp.
-20 ~ +85 C
o
Package
SOP-8
Block Diagram
TS650
1-4
2003/12 rev. A