器件名称: AZ34063CMTR
功能描述: 0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
文件大小: 298.41KB 共13页
简 介:Data Sheet 0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER General Description
The AZ34063C 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 AZ34063C 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.
AZ34063C
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 180KHz (CT=100pF) Precision 2% Reference
Applications
Battery Chargers ADSL Modems Hubs Negative Voltage Power Supplies
The AZ34063C is available in 2 packages: SOIC-8 and DIP-8.
SOIC-8
DIP-8
Figure 1. Package Types of AZ34063C
Sep. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
1
Data Sheet 0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Pin Configuration
P/M Package (DIP-8/SOIC-8)
Switch Collector Switch Emitter Timing Capacitor GND 1 2 3 4 8 7 6 5 Driver Collector IPK Sense VCC Comparator Inverting Input
AZ34063C
Top View
Figure 2. Pin Configuration of AZ34063C
Functional Block Diagram
Driver Collector
8 B A S R Q
1
Switch Collector
IPK Sense
7 Ipk IPK OSC
2
Switch Emitter
CT
VCC
6
……
