Overview
The MC34063AP1, produced by onsemi, is a monolithic control circuit designed for DC-to-DC converters. This device is part of the MC34063A series, which includes the MC34063A, MC33063A, SC33063A, and NCV33063A. It is specifically designed to be used in Step-Down, Step-Up, and Voltage-Inverting applications with a minimal number of external components.
The MC34063AP1 integrates 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. This integration makes it versatile for various power conversion topologies.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 3 | 40 | V | |
| Operating Ambient Temperature Range (TA) | 0 | 70 | °C | |
| Oscillator Frequency (fosc) | 24 | 33 | 42 | kHz |
| Output Switch Current | 1.5 | A | ||
| Threshold Voltage (Vth) | 1.21 | 1.25 | 1.29 | V |
| Input Bias Current (IIB) | -20 | -400 | nA | |
| Supply Current (ICC) | 4.0 | mA | ||
| Thermal Resistance (RθJA) | 115 | °C/W |
Key Features
- Wide Input Voltage Range: 3 V to 40 V
- High Output Switch Current: Up to 1.5 A
- Adjustable Output Voltage: Allows for flexible output voltage settings
- Oscillator Frequency: Up to 100 kHz
- Precision Internal Reference: 2% accuracy
- Short-Circuit Current Limiting: Protects against short-circuit conditions
- Low Standby Current: Minimizes power consumption in standby mode
- ESD Protection: Exceeds Human Body Model 4000 V and Machine Model 400 V tests
Applications
- Portable Devices: Suitable for battery-powered devices due to its low standby current and high efficiency
- Telecommunications: Used in various telecom equipment for power conversion
- Consumer & Computing: Found in consumer electronics and computing devices requiring efficient power management
- Test & Measurement: Used in test and measurement equipment for reliable power supply
- HMIs (Human Machine Interfaces): Used in HMIs for reliable and efficient power conversion
- Cable Solutions: Utilized in cable solutions for efficient power distribution
- Blood Gas Analyzers: Used in medical devices such as portable blood gas analyzers
Q & A
- What is the operating temperature range of the MC34063AP1?
The operating ambient temperature range for the MC34063AP1 is from 0°C to 70°C.
- What is the maximum output switch current of the MC34063AP1?
The maximum output switch current is up to 1.5 A.
- What is the input voltage range for the MC34063AP1?
The input voltage range is from 3 V to 40 V.
- Does the MC34063AP1 have built-in ESD protection?
- What are the typical applications of the MC34063AP1?
- What is the oscillator frequency range of the MC34063AP1?
- Does the MC34063AP1 have short-circuit current limiting?
- What is the precision of the internal reference voltage?
- What are the package options available for the MC34063AP1?
- How does the MC34063AP1 handle thermal management?
