0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER AZ34063
Data Sheet
1
Apr. 2005 Rev. 2. 1
BCD Semiconductor Manufacturing Limited
General Description
The AZ34063 is a monolithic switching regulator
control circuit containing 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. This device is specifically designed to be
used in Step-Down, Step-Up and Voltage-Inverting
applications with a minimum number of external com-
ponents.
The AZ34063 is available in 2 packages: SOIC-8 and
DIP-8.
Features
• Operation from 3.0V to 36V Input
Low Standby Current
Current Limiting
Output Switch Current to 0.8A
Output Voltage Adjustable
Operation Frequency up to 65KHz (CT=330pF)
Precision 2% Reference
Applications
g Battery Chargers
g NICs/ Switches/ Hubs
g ADSL Modems
g Negative Voltage Power Supplies
Figure 1. Package Types of AZ34063
SOIC-8 DIP-8