Advanced
Monolithic
Systems
FEATURES
•
Wide Input Voltage Operating Range from 2.5V to 40V
•
Low Standby Current
•
Current Limiting
•
Output Switch Current of 1.5A
•
Output Voltage Adjustable from 1.25 to 40V
•
Frequency of Operation to 100kHz
AMS34063
DC-TO-DC CONVERTER CONTROL CIRCUIT
APPLICATIONS
•
Step-Up Converter
•
Step-Down Converter
•
Voltage Inverting Application
GENERAL DESCRIPTION
The AMS34063 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 and a high current output switch. Designed specifically to be incorporated in Step-Up, Step-Down and Voltage
-Inverting applications, the AMS34063 requires a minimum number of external components.
The AMS34063 is available in the 8-lead plastic SOIC and 8-lead plastic DIP packages.
ORDERING INFORMATION
PACKAGE TYPE
8 LEAD PDIP
AMS34063P
8 LEAD SOIC
AMS34063S
OPER. TEMP
RANGE
-40°C to +85°C
PIN CONNECTIONS
8 LEAD SOIC/ 8 LEAD PDIP
SWITCH
COLLECTOR
SWITCH
EMITTER
TIMING
CAPACITOR
GND
1
2
3
4
DRIVER
COLLECTOR
7 I
PK
SENSE
8
6 V
CC
5 COMPARATOR
INVERTING
INPUT
Top View
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
