Overview
The MC34063ACD-TR is a monolithic control circuit designed for DC-DC voltage conversion, manufactured by STMicroelectronics. This device is part of the MC34063A/E series and is housed in an SO-8 package. It is capable of operating in various topologies including boost, buck, and buck-boost configurations. The MC34063ACD-TR features an internal temperature-compensated reference, comparator, duty cycle controlled oscillator, active current limit circuit, driver, and a high current output switch. This makes it versatile for a wide range of power supply applications requiring step-down, step-up, or voltage-inverting functions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | |
| Package | SO-8 | |
| Number of Pins | 8 | |
| Number of Outputs | 1 | |
| Mounting | Surface Mount | |
| Max Output Current | 1.5 A | A |
| Switching Frequency | 33 kHz to 100 kHz | kHz |
| Min Input Voltage | 3 V | V |
| Max Input Voltage | 40 V | V |
| Min Output Voltage | 1.25 V | V |
| Max Output Voltage | 38 V | V |
| Efficiency | Up to 89% | % |
| Operating Temperature Range | 0°C to 70°C | °C |
| Quiescent Current | 2.5 mA (typ.) | mA |
| Topology | Boost, Buck, Buck-Boost | |
| RoHS Compliance | Compliant |
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 and overload protection
- Thermal shutdown capabilities
- Undervoltage lockout
- Adjustable output voltage through external resistors
Applications
- LED lighting systems
- Battery chargers
- Regulated DC/DC converters
- Microprocessor power supplies
- Low power power supplies
- Step-down, step-up, and voltage-inverting applications
Q & A
- What is the maximum output current of the MC34063ACD-TR?
The maximum output current is 1.5 A.
- What are the input voltage ranges for the MC34063ACD-TR?
The input voltage range is from 3 V to 40 V.
- What are the possible topologies for the MC34063ACD-TR?
The device can operate in boost, buck, and buck-boost topologies.
- What is the typical quiescent current of the MC34063ACD-TR?
The typical quiescent current is 2.5 mA.
- What is the maximum operating temperature for the MC34063ACD-TR?
The maximum operating temperature is 70°C.
- Is the MC34063ACD-TR RoHS compliant?
Yes, the MC34063ACD-TR is RoHS compliant.
- How is the output voltage adjusted in the MC34063ACD-TR?
The output voltage is adjustable through two external resistors with a 2% reference accuracy.
- What are some common applications of the MC34063ACD-TR?
Common applications include LED lighting, battery chargers, regulated DC/DC converters, and microprocessor power supplies.
- What is the package type of the MC34063ACD-TR?
The package type is SO-8.
- Does the MC34063ACD-TR have built-in protection features?
Yes, it includes undervoltage lockout, active current limiting, overload protection, and thermal shutdown capabilities.
