Advanced Monolithic Systems, Inc.

6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

Advanced

AMS36063

Monolithic

DC-TO-DC CONVERTER CONTROL CIRCUIT

Systems

PRELIMINARY INFORMATION

FEATURES

APPLICATIONS

•• Wide Input Voltage Operating Range from 2.5V to 60V

•• Step-Up Converter

•• Low Standby Current

•• Step-Down Converter

•• Current Limiting

•• Voltage Inverting Application

•• Output Switch Current of 1.5A

•• Telephone Circuits

•• Output Voltage Adjustable from 1.25 to 40V

•• Monitors

•• Frequency of Operation to 100kHz

••Battery Chargers

•• Thermal Protection

•• Portable Equipment

•• Enable Input Pin

GENERAL DESCRIPTION

The AMS36063 series is a control circuit containing the basic functions required for DC-to-DC converters. The device consists

of an internal temperature compensated reference, a comparator, a controlled duty cycle oscillator with an active current limit

circuit, a driver, a high current output switch, a thermal protection circuit and a converter enable input. Designed specifically to

be incorporated in Step-Up, Step-Down and Voltage -Inverting applications, the AMS36063 requires a minimum number of

external components.

The AMS36063 is available in the 8-lead plastic SOIC and 8-lead plastic DIP packages.

ORDERING INFORMATION

PACKAGE TYPE

OPER. TEMP

8 LEAD PDIP

8 LEAD SOIC

RANGE

AMS36063P

AMS36063S

-40

°C to +85°C

PIN CONNECTIONS

8 LEAD SOIC/ 8 LEAD PDIP

Top View

COMPARATOR

INVERTING

INPUT

SWITCH

COLLECTOR

GND

ENABLE

TIMING

CAPACITOR

V

CC

I

SWITCH

EMITTER

1

2

8

4

3

7

5

6