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MC34063 MC34063A 34063 SOP-8 Power Chip

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Category: integrated circuit (IC)

Tag: MC34063 MC34063A 34063 SOP-8 Power Chip

Description
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Description

MC34063 MC34063A 34063 SOP-8 Power Chip

The MC34063A (also known as 34063) is a versatile monolithic switching regulator IC designed for DC-to-DC power conversion. The SOP-8 (or SOIC-8) variant is the surface-mount package option.

Key features and specifications

- Topology options: It can be configured for step-down (buck), step-up (boost), or voltage-inverting configurations using minimal external components.
- Voltage range: Operates from a wide input voltage range of 3.0 V to 40 V.
- Output current: Delivers an output switch current of up to 1.5 A peak.
- Switching frequency: Operates up to 100 kHz, controlled by an internal temperature-compensated oscillator.
- Internal protection: Features active current limiting to safe-guard the power circuit.

SOP-8 Pinout configuration

The 8 pins map to the internal components (reference voltage, comparator, and high-current switch) as follows:

Pin 1: Switch Collector
Pin 2: Switch Emitter
Pin 3: Timing Capacitor C_T
Pin 4: Ground (GND)
Pin 5: Comparator Inverting Input (used to set output voltage via a divider network)
Pin 6: V_CC Power Supply Input
Pin 7: I_pk Sense (Load current detection)
Pin 8: Driver Collector