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    Parts    MC34063/MC33063 Switching Regulators Family    MC34063    MC34063AP1G
MC34063AP1G

ONMC34063AP1G

onsemi
Buck, Boost Switching Regulator IC Positive or Negative Adjustable 1.25V 1 Output 1.5A (Switch) 8-DIP (0.300", 7.62mm)
Active2,350 in stock
Datasheet Digi-Key Compare Prices

Overview

The MC34063AP1G is a versatile monolithic switching regulator control circuit containing the primary functions required for DC-to-DC converters. It features an internal temperature compensated reference, a comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver, and a high-current output switch.

Why Choose This Part

This regulator offers exceptional flexibility, supporting buck, boost, and inverting topologies with a wide input range of 3V to 40V. Its integrated 1.5A switch reduces external component count, while the 8-DIP package makes it ideal for through-hole assembly and rapid prototyping.

Applications

Point-of-Load Buck Converters
Stepping down a 12V or 24V industrial rail to 5V for logic circuits with up to 1.5A peak switch current.
Voltage Inverting Supplies
Generating a negative voltage rail from a positive input for analog operational amplifier stages.
Battery-Powered Boost Regulators
Increasing voltage from low-cell-count battery packs to meet higher system requirements up to 40V.
Prototyping Power Modules
Creating simple, low-cost power supplies on breadboards due to the easy-to-use 8-pin DIP package.

Key Specifications

Function Step-Up, Step-Down
Topology Buck, Boost
Output Type Adjustable
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Current - Output 1.5A (Switch)
Number of Outputs 1
Output Configuration Positive or Negative
Frequency - Switching 100kHz
Operating Temperature 0degC ~ 70degC (TA)
Synchronous Rectifier No
Voltage - Input (Max) 40V
Voltage - Input (Min) 3V
Voltage - Output (Max) 40V (Switch)
Supplier Device Package 8-PDIP
Voltage - Output (Min/Fixed) 1.25V

Getting Started

To design a circuit, calculate the timing capacitor, inductor, and resistor divider values based on your desired output voltage and switching frequency. Use the formulas provided in the onsemi datasheet to ensure the peak switch current remains below 1.5A and verify stability across the 3V to 40V input range.

Part of MC34063/MC33063 Switching Regulators family » MC34063

MC34063 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Sw. Freq Temp Range Voltage - Output (Max) Stock
MC34063AP1G (this part) DIP-8 100k 0degC ~ 70degC (TA) 40V 2,350
MC34063ACD-TR (STMicroelectronics) Tape & Reel SOIC-8 33k 0degC ~ 70degC (TA) 38V 4,037
MC34063ADR2G SOIC-8 100k 0degC ~ 70degC (TA) 40V 22,346
MC34063EBD-TR (STMicroelectronics) Tape & Reel SOIC-8 33k -40degC ~ 125degC .. 38V 18,130
MC34063ADR (Texas Instruments) SOIC-8 100k 0degC ~ 70degC (TA) 40V 76,561
MC34063ABD-TR (STMicroelectronics) Tape & Reel SOIC-8 33k -40degC ~ 85degC (.. 38V 15,233
Also available as: MC34063ECD-TR, MC34063ACN, MC34063A