Product Summary

The MC34063 is a switching regulator. It 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 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MC34063SMDINVEVB
MC34063SMDINVEVB
ON Semiconductor
Power Management IC Development Tools MC34063A EVAL BRD
Data Sheet
0-1: $38.96
MC34063ADR2G
MC34063ADR2G
ON Semiconductor
Switching Converters, Regulators & Controllers 40V 1.5A Buck/Boost/Inverting
Data Sheet
0-1: $0.32
1-25: $0.29
25-100: $0.25
100-250: $0.22
MC34063ADR2
MC34063ADR2
ON Semiconductor
Switching Converters, Regulators & Controllers 40V 1.5A
Data Sheet
Negotiable 
MC34063ADR
MC34063ADR
Texas Instruments
DC/DC Switching Regulators 1.5-A Boost/Buck Inverting Swtch Reg
Data Sheet
0-1: $0.39
1-25: $0.27
25-100: $0.23
100-250: $0.20
MC34063ADG4
MC34063ADG4
Texas Instruments
DC/DC Switching Regulators 1.5A Boost/Buck/ Inverting Sw Reg
Data Sheet
0-1: $0.36
1-25: $0.28
25-100: $0.25
100-250: $0.22
MC34063ADG
MC34063ADG
ON Semiconductor
Switching Converters, Regulators & Controllers 40V 1.5A Buck/Boost/Inverting
Data Sheet
0-1: $0.34
1-25: $0.26
25-100: $0.22
100-500: $0.19
MC34063ADE4
MC34063ADE4
Texas Instruments
DC/DC Switching Regulators 1.5-A Boost/Buck Inverting Swtch Reg
Data Sheet
0-1: $0.40
1-25: $0.31
25-100: $0.27
100-250: $0.23
MC34063AD
MC34063AD
Texas Instruments
DC/DC Switching Regulators 1.5-A Boost/Buck Inverting Swtch Reg
Data Sheet
0-1: $0.35
1-25: $0.31
25-100: $0.24
100-250: $0.23