MC34063ACD-TR
Overview
The MC34063ACD-TR is a versatile monolithic 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 supports a wide input voltage range from 3V up to 40V and includes internal switch currents up to 1.5A. Its flexible architecture allows it to be configured for buck, boost, or inverting topologies with a minimum of external components.
Applications
Key Specifications
Getting Started
When designing with this part, use an online MC34063 calculator to determine the required timing capacitor for the 33kHz frequency and the inductor value. Ensure the layout keeps the high-current loops short to minimize EMI, as the fixed-frequency oscillator can generate significant noise.
MC34063 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Sw. Freq | Temp Range | Voltage - Output (Max) | Stock |
|---|---|---|---|---|
| MC34063ACD-TR (this part) Tape & Reel | 33k | 0degC ~ 70degC (TA) | 38V | 4,037 |
| MC34063ADR (Texas Instruments) | 100k | 0degC ~ 70degC (TA) | 40V | 88,763 |
| MC34063ADR2G (onsemi) | 100k | 0degC ~ 70degC (TA) | 40V | 7,456 |
| MC34063EBD-TR Tape & Reel | 33k | -40degC ~ 125degC .. | 38V | 18,130 |
| MC34063ABD-TR Tape & Reel | 33k | -40degC ~ 85degC (.. | 38V | 59,132 |
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