AV34063 Datasheet, PDF (1/8 Pages) Avic Technology – 1.5A,Step-Up/Down Inverting Switching Regulators

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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.
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
DIP-8
SOP-8
BLOCK DIAGRAM
8
Drive
Collector
7
I_PK
Sense
6
V_CC
5
Comparator
Inverting
Input
S Q Q2
R
Q1
100
I_PK
C_T
Oscillalo
Comparator
1.25
Reference
Regulator
1
Switch
Collector
2
Switch
Emitter
3
Timing
Capacitor
4
Gnd
(Bottom View)
Switch
Collector
1
Switch
Emitter ²
Timing
Capacitor ³
Gnd ₄
8 ^Drive
Collector
7 ^IPK
Sense
6 V_CC
5
(Top View)
Comparator
Inverting
Input
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