@vic
AV34063
1.5A,Step-Up/Down Inverting Switching Regulators
DESCRIPTION
The AV34063 is a monolithic control circuit containing the
primary functions required for DC-to-DC converters. This device
consists of an internal temperature compensated reference,
comparator, controlled duty cycle oscillator with an active current
limit circuit,driver and high current output switch. This device was
specifically designed to be incorporated in Step-Down and Step-Up
and Voltage-inverting applications with a minimum number of
external components.
DIP-8
FEATURES
Operation from 3.0 to 40V input
Low standby current
Current limiting
Output switch current of 1.5A
Output voltage adjustable
Frequency of operation from 100Hz to 100KHz
Precision 2% reference
SOP-8
BLOCK DIAGRAM
Drive
Collector
8
S Q
Q2
Q1
100
I
PK
C
T
1
Switch
Collector
2
I
PK
Sense
7
R
Switch
Emitter
6
V
CC
Oscillalo
3
1.25
Reference
Regulator
Comparator
Timing
Capacitor
4
Gnd
Comparator
Inverting
Input
5
Switch
Collector
Switch
Emitter
Timing
Capacitor
Gnd
1
2
3
4
(Top View)
Drive
Collector
7 I
PK
Sense
8
6 V
CC
5
Comparator
Inverting
Input
(Bottom View)
ORDERING INFORMATION
Part Number
AV34063
AV34063S
Operating Temperature Range
0℃~+70℃
0℃~+70℃
Package Type
DIP-8
SOP-8
Copyright © Avic Electronics Corp.
1
Website:
http://www.avictek.com
AVICTEK [ Avic Technology ]
