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 PK SENSESWITCHEMITTER
1
2
8
4
3
7
5
6