Overview
The MC34063ECD-TR is a monolithic control circuit from STMicroelectronics, designed for DC-DC voltage conversion. This device is part of the MC34063A/E series and is integrated with essential components for voltage conversion, including an internal temperature-compensated reference, comparator, duty cycle controlled oscillator, active current limit circuit, driver, and high current output switch. The output voltage can be adjusted using two external resistors with a 2% reference accuracy. It operates with a minimal number of external components, making it suitable for step-down, step-up, and voltage-inverting applications.
Key Specifications
| Parameter | Description | Min | Typ | Max |
|---|---|---|---|---|
| Output Switch Current | 1.5 A | |||
| Reference Accuracy | 2% | |||
| Quiescent Current | 2.5 mA | |||
| Operating Voltage Range | 3 V | 40 V | ||
| Frequency Operation | up to 100 kHz | |||
| Package Type | SOIC-8 | |||
| Operating Temperature Range | -40°C | 125°C (EB series) | ||
| Saturation Voltage (VCEsat) | ISW = 1 A | 0.45 V | 0.7 V |
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.
- Adjustable output voltage through two external resistors.
- Integrated protection against voltage spikes, overvoltage, and over-temperature.
Applications
The MC34063ECD-TR is designed for various applications due to its versatility and efficiency. These include:
- Step-down, step-up, and voltage-inverting applications.
- Power control for LED lighting applications.
- Battery-powered devices.
- Automotive applications.
Q & A
- What is the MC34063ECD-TR used for?
The MC34063ECD-TR is used for DC-DC voltage conversion, including step-down, step-up, and voltage-inverting applications.
- What is the output switch current of the MC34063ECD-TR?
The output switch current of the MC34063ECD-TR is in excess of 1.5 A.
- What is the reference accuracy of the MC34063ECD-TR?
The reference accuracy of the MC34063ECD-TR is 2%.
- What is the operating voltage range of the MC34063ECD-TR?
The MC34063ECD-TR operates from 3 V to 40 V.
- What is the maximum frequency operation of the MC34063ECD-TR?
The MC34063ECD-TR can operate up to 100 kHz.
- What package type is the MC34063ECD-TR available in?
The MC34063ECD-TR is available in an SOIC-8 package.
- What are some common applications of the MC34063ECD-TR?
Common applications include power control for LED lighting, battery-powered devices, and automotive applications.
- Does the MC34063ECD-TR have built-in protection features?
Yes, the MC34063ECD-TR has integrated protection against voltage spikes, overvoltage, and over-temperature.
- What is the typical quiescent current of the MC34063ECD-TR?
The typical quiescent current of the MC34063ECD-TR is 2.5 mA.
- How can the output voltage of the MC34063ECD-TR be adjusted?
The output voltage can be adjusted through two external resistors with a 2% reference accuracy.
