MC34063ACS

Features:

" 3V to 30V Input Voltage Operation.
" Internal 1.6A Peak Current Switch.
" Internal ±1.8% Reference.
" Low Quiescent Current at 1.6mA.
" Frequency Operation from 100Hz to 100KHz.
" Current Limiting.


Application

" Saver for Cellular phones
" DC-DC Converter Module


Pinout




Specifications

 Supply Voltage ............................................................................ 30V
 Comparator Input Voltage Range ....................................  -0.3V~30V
 Switch Collector Voltage ...............................................................30V
 Switch Emitter Voltage ..................................................................30V
 Switch Collector to Emitter Voltage ...............................................30V
 Driver Collector Voltage  ................................................................30V
 Switch Current  .............................................................................1.6A
 Power Dissipation and Thermal Characteristics
DIP Package
Ta= 25°C .....................................................................................1.0W
Thermal Resistance ..............................................................100°C /W
SO Package
Ta= 25°C...................................................................................625mW
Thermal Resistance ...............................................................160°C /W
 Operating Junction Temperature ...............................................125°C
 Operating Ambient Temperature Range .............................0°C~70°C
 Storage Temperature  Range......................................  - 65°C~150°C


Description

The MC34063A by Analog Integrations Corporation, an improved second source over the industrial standard MC34063A, is a monolithic control circuit containing the primary functions required for DC/DC converters. The MC34063A consists of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. MC34063A is specifically designed to be incorporated in stepdown, step-up and voltage-inverting applications with a minimum number of external components. The ±1.8% internal reference and low quiescent current of 1.6mA are among the improvements of the device over the competition.