MC34063LBBGEVBOS: -12V (1.23 ~ 20V) @ 50mA, 3 ~ 40V in

Summary

The MC34063 is a switching control circuit for use in DC to DC converters. With an on board switch capable of delivering 1.5 A, this versatile controller can be utilized in step up, step down, buck-boost, or voltage inverting topologies with a minimum number of components.

The MC34063A Series is a monolithic control circuit containing the primary functions required for DC−to−DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series was specifically designed to be incorporated in Step−Down and Step−Up and Voltage−Inverting applications with a minimum number of external components.

Refer to Application Notes AN920A/D and AN954/D for additional design information.

Specifications

Manufacturer	onsemi
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	MC34063LBBGEVBOS-ND
Eval Board Supplier	onsemi
Eval Board	Normally In Stock
Topology	Inverting
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	-12 V
Current Out	50 mA
Voltage In	3 ~ 40 V
Efficiency @ Conditions	- Not Given
Voltage Out Range	1.23 ~ 20 V
Features	Current Foldback Protection Current Limit (Adj. or Fixed) Over Current Protection Shutdown, Enable, Standby
Switching Frequency	100 kHz
Standby Current [Typical]	- Not Given
Quiescent Current [Typical]	- Not Given
Component Count + Extras	15 + 2
Internal Switch	No
Design Author	ONSemiconductor
Application / Target Market	Power: Industrial Power
Standby Current [Maximum]	- Not Given
Quiescent Current [Maximum]	- Not Given
Main I.C. Base Part	MC34063
Date Created By Author	2011-05
Date Added To Library	2016-05