Product Summary

The MC34063 is a switching regulator. It is a monolithic control circuit containing all the active functions required for switching dc-to-dc converters. The MC34063 is a monolithic control circuit delivering the main functions for DC-DC voltage converting. The MC34063 contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch.

Parametrics

MC34063 absolute maximum ratings: (1)VCC Power Supply Voltage: 50 V; (2)Vir Comparator Input Voltage RangeL: -0.3 to 40 V; (3)VSWC Switch Collector Voltage: 40 V; (4)VSWE Switch Emitter Voltage (VSWC = 40V): 40 V; (5)VCE Switch Collector toEmitter Voltage: 40 V; (6)Vdc Driver Collector Voltage: 40 V; (7)Idc Driver Collector Current: 100 mA; (8)ISW Switch Current: 1.5 A; (9)Tstg Storage Temperature Range: - 40 to 150 ℃; (10)Top Operating Ambient Temperature Range: 0 to 70℃.

Features

MC34063 features: (1)output switch current iexcess of 1.5A; (2)2% reference accuracy; (3)Low quiescent current: 2.5mA (TYP.); (4)Operating from 3V TO 40V; (5)Frequency operatioto 100KHz; (6)Active current limiting.

Diagrams

MC34063 Functional Block Diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MC34063
MC34063

Other


Data Sheet

Negotiable 
MC34063A
MC34063A

Other


Data Sheet

Negotiable 
MC34063ABD
MC34063ABD


IC REG BUCK BOOST INV ADJ 8SOIC

Data Sheet

Negotiable 
MC34063ABD-TR
MC34063ABD-TR

STMicroelectronics

Switching Converters, Regulators & Controllers 3.0 to 40V DC-DC Cnv

Data Sheet

0-1: $0.85
1-10: $0.74
10-100: $0.58
100-250: $0.50
MC34063ABN
MC34063ABN

STMicroelectronics

DC/DC Switching Converters DC DC CONVERTER CONTROL CIRCUITS

Data Sheet

0-1: $0.38
1-10: $0.29
10-100: $0.25
100-250: $0.22
MC34063ACD
MC34063ACD

STMicroelectronics

Switching Converters, Regulators & Controllers 3.0 to 40V DC-DC Cnv

Data Sheet

Negotiable 
MC34063ACD-TR
MC34063ACD-TR

STMicroelectronics

Switching Converters, Regulators & Controllers 3.0 to 40V DC-DC Cnv

Data Sheet

0-1: $0.26
1-25: $0.23
25-100: $0.20
100-250: $0.18
MC34063ACN
MC34063ACN

STMicroelectronics

Switching Converters, Regulators & Controllers 3.0 to 40V DC-DC Cnv

Data Sheet

0-1: $0.38
1-10: $0.29
10-100: $0.25
100-250: $0.22