DC-DC CONVERTER. AZ34063D Datasheet

AZ34063D CONVERTER. Datasheet pdf. Equivalent

Part AZ34063D
Description 1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Feature 1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER General Description Features Data Sheet AZ34063D .
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1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER General Desc AZ34063D Datasheet
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AZ34063D
1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
General Description
Features
Data Sheet
AZ34063D
The AZ34063D is a monolithic switching regulator
control circuit which contains the primary functions
required for DC-DC converters. This device consists
of internal temperature compensated reference, voltage
comparator, controlled duty cycle oscillator with active
current limit circuit, driver and high current output
switch.
The AZ34063D is specifically designed as a general
DC-DC converter to be used in Step-Down, Step-Up
and Voltage-Inverting applications with a minimum
number of external components.
The AZ34063D is available in 2 packages: SOIC-8 and
DIP-8.
• Operation from 3.0V to 36V Input
• Low Standby Current
• Current Limiting
• Output Switch Current to1A
• Output Voltage Adjustable
• Operation Frequency up to 180kHz (CT=100pF)
• Precision 2% Reference
Applications
· Battery Chargers
· ADSL Modems
· Hubs
· Negative Voltage Power Supplies
SOIC-8
DIP-8
Figure 1. Package Types of AZ34063D
Mar. 2010 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
1



AZ34063D
1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Pin Configuration
Data Sheet
AZ34063D
M Package
(SOIC-8)
Switch
Collector
Switch
Emitter
Timing
Capacitor
GND
1
2
3
4
8
Driver
Collector
7 IPK Sense
6 VCC
5
Comparator
Inverting Input
P Package
(DIP-8)
Switch
Collector
Switch
Emitter
Timing
Capacitor
1
2
3
GND 4
8
Driver
Collector
7 IPK Sense
6 VCC
5
Comparator
Inverting Input
Figure 2. Pin Configuration of AZ34063D (Top View)
Functional Block Diagram
Driver
Collector
8
IPK Sense 7
VCC
6
Comparator
Inverting
Input
5
B
SQ
A
R
IIpPkK
OSC
CT
1.25V
+ Reference
Regulator
-
1 Switch
Collector
2 Switch
Emitter
3 Timing
Capacitor
4 GND
Figure 3. Functional Block Diagram of AZ34063D
Mar. 2010 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
2





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