Overview
The MC34063EBD, produced by STMicroelectronics, is a monolithic control circuit designed for DC-DC voltage conversion. This device is part of the MC34063A/E series and integrates essential functions for step-down, step-up, and voltage-inverting applications. It features an internal temperature-compensated reference, comparator, duty cycle controlled oscillator, active current limit circuit, driver, and a high current output switch. The output voltage can be adjusted using two external resistors with a 2% reference accuracy. The MC34063EBD operates with a minimal number of external components, making it versatile and efficient for various power conversion needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage | 3 to 40 | V DC |
| Output Voltage | 1.25 to 38 | V DC |
| Output Current | 1.5 | A |
| Frequency Operation | 33 to 100 | kHz |
| Topology | Boost, Buck, Buck-Boost | |
| Number of Channels | 1 | |
| DC Supply Current | 2.5 | mA |
| Operating Temperature Range | -40 to 125 | °C |
| Package | SO-8 | |
| Mounting | SMD |
Key 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 up to 100 kHz
- Active current limiting
- Internal temperature-compensated reference, comparator, duty cycle controlled oscillator, and high current output switch
- Adjustable output voltage through two external resistors
Applications
The MC34063EBD is designed for a variety of DC-DC conversion applications, including:
- Step-down (Buck) converters
- Step-up (Boost) converters
- Voltage-inverting converters
- Power supplies for electronic devices requiring adjustable output voltages
- Industrial and consumer electronics where efficient power conversion is necessary
Q & A
- What is the input voltage range of the MC34063EBD?
The input voltage range is from 3 V to 40 V DC.
- What is the maximum output current of the MC34063EBD?
The maximum output current is 1.5 A.
- What are the typical applications of the MC34063EBD?
The MC34063EBD is used in step-down, step-up, and voltage-inverting applications, as well as in power supplies for various electronic devices.
- What is the frequency operation range of the MC34063EBD?
The frequency operation range is from 33 kHz to 100 kHz.
- What is the package type of the MC34063EBD?
The package type is SO-8, and it is surface-mountable (SMD).
- What is the operating temperature range of the MC34063EBD?
The operating temperature range is from -40°C to 125°C.
- Does the MC34063EBD have active current limiting?
Yes, the MC34063EBD features active current limiting.
- How is the output voltage adjusted in the MC34063EBD?
The output voltage is adjustable through two external resistors with a 2% reference accuracy.
- What is the quiescent current of the MC34063EBD?
The quiescent current is typically 2.5 mA.
- Is the MC34063EBD RoHS compliant?
Yes, the MC34063EBD is RoHS compliant with an Ecopack2 grade.
