Overview
The LM2575D2T-ADJR4 is a part of the LM2575 series of monolithic integrated circuits designed by onsemi. These regulators are ideally suited for the easy and convenient design of step-down switching regulators (buck converters). The LM2575 series is capable of driving a 1.0 A load with excellent line and load regulation. This particular model, the LM2575D2T-ADJR4, is an adjustable output version, offering a wide range of output voltages from 1.23 V to 37 V.
The device is packaged in a TO-263-5 (D2PAK5) surface mount package and is known for its high efficiency, especially when compared to traditional three-terminal linear regulators. It requires only a few external components to function, making it a simplified solution for power supply design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Topology | Buck | |
| Input Voltage | 4.75 V to 40 V | |
| Output Current (Max) | 1 A | |
| Output Type | Adjustable | |
| Switching Frequency (Max) | 52 kHz | |
| Operating Temperature Range | -40°C to +125°C | |
| Duty Cycle (Max) | 98% | |
| Efficiency | 77% | % |
| Number of Outputs | 1 | |
| Quiescent Current | 9 mA | |
| Storage Temperature Range | -65°C to +150°C | |
| Moisture Sensitivity Level | 1 | |
| Package Style | TO-263-5 (D2PAK5) | |
| Mounting Method | Surface Mount |
Key Features
- Adjustable output voltage range of 1.23 V to 37 V ±4% maximum over line and load conditions
- Guaranteed 1.0 A output current
- Wide input voltage range: 4.75 V to 40 V
- Requires only 4 external components
- 52 kHz fixed frequency internal oscillator
- TTL shutdown capability, low power standby mode
- High efficiency
- Uses readily available standard inductors
- Thermal shutdown and current limit protection
- Moisture Sensitivity Level (MSL) equals 1
- Pb-free packages are available
Applications
The LM2575D2T-ADJR4 is suitable for a variety of applications where a high-efficiency step-down switching regulator is required. These include:
- Power supplies for electronic devices
- Industrial control systems
- Automotive systems (with NCV prefix for automotive and other applications requiring unique site and control change requirements)
- Consumer electronics
- Telecommunications equipment
Q & A
- What is the input voltage range of the LM2575D2T-ADJR4?
The input voltage range is from 4.75 V to 40 V.
- What is the maximum output current of the LM2575D2T-ADJR4?
The maximum output current is 1 A.
- What is the switching frequency of the LM2575D2T-ADJR4?
The switching frequency is 52 kHz.
- What is the operating temperature range of the LM2575D2T-ADJR4?
The operating temperature range is from -40°C to +125°C.
- Does the LM2575D2T-ADJR4 have thermal shutdown protection?
- How many external components are required for the LM2575D2T-ADJR4 to function?
- What is the package style of the LM2575D2T-ADJR4?
- Is the LM2575D2T-ADJR4 Pb-free?
- What is the efficiency of the LM2575D2T-ADJR4?
- Does the LM2575D2T-ADJR4 have TTL shutdown capability?
