Overview
The MC34063ECN is a monolithic control circuit designed by STMicroelectronics for DC-DC voltage conversion. This device is part of the MC34063A/E series and is integral in various power management applications. It contains 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 MC34063ECN operates with a minimal number of external components, making it suitable for step-down, step-up, and voltage-inverting applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Output Switch Current | - | - | 1.5 A | A |
| Reference Accuracy | - | 2% | - | % |
| Quiescent Current | - | 2.5 mA | - | mA |
| Operating Voltage Range | 3 V | - | 40 V | V |
| Frequency Operation | - | - | 100 kHz | kHz |
| Active Current Limiting | - | - | - | - |
| Package Type | - | DIP-8, SO-8 | - | - |
| Operating Temperature Range | - | - | - | °C |
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
- Minimal number of external components required
Applications
- Step-down (buck) converters
- Step-up (boost) converters
- Voltage-inverting converters
- Dual output voltage applications
- Higher output power and higher input voltage applications
Q & A
- What is the MC34063ECN used for?
The MC34063ECN is used for DC-DC voltage conversion in various power management applications.
- What is the output switch current capacity of the MC34063ECN?
The output switch current capacity is in excess of 1.5 A.
- What is the reference accuracy of the MC34063ECN?
The reference accuracy is 2%.
- What is the operating voltage range of the MC34063ECN?
The operating voltage range is from 3 V to 40 V.
- What is the maximum frequency operation of the MC34063ECN?
The maximum frequency operation is up to 100 kHz.
- Does the MC34063ECN have active current limiting?
- How is the output voltage adjusted in the MC34063ECN?
The output voltage is adjustable through two external resistors.
- What types of converters can the MC34063ECN be used for?
The MC34063ECN can be used for step-down, step-up, and voltage-inverting converters.
- What are the available package types for the MC34063ECN?
The available package types are DIP-8 and SO-8.
- Is the MC34063ECN RoHS compliant?
