1A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
General Description
Features
Data Sheet AZ34063D
The AZ34063D is a mo...
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
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 Configuratio...