MC34063AB| Datasheet

MC34063AB, MC34063ABD-TR, MC34063ABN, MC34063AC, MC34063ACD-TR, MC34063ACN, MC34063EB, MC34063EBD-TR, MC34063EBN, MC34063EC, MC34063ECD-TR, MC34063ECN

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MC34063AB - MC34063AC MC34063EB - MC34063EC
DC/DC converter control circuits
Features

Output switch current in excess of 1.5 A 2 % reference accuracy Low quiescent current: 2.5 mA (typ.) Operating from 3 V to 40 V Frequency operation to 100 kHz Active current limiting
DIP-8 SO-8

Description
The MC34063A/E series is a monolithic control circuit delivering the main functions for DC/DC voltage converting. The device contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch. Output voltage is adjustable through two external resistors with a 2 % reference accuracy. Employing a minimum number of external components the MC34063A/E devices series is designed for step-down, step-up and voltageinverting applications.

Table 1.

Device summary
Order codes DIP-8 MC34063ABN (1) MC34063ACN
(1)

SO-8 MC34063ABD-TR MC34063ACD-TR MC34063EBD-TR MC34063ECD-TR

MC34063EBN MC34063ECN
1. The "A" version is not recommended for new designs.

November 2007

Rev 10

1/23
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