Overview
The LM2575D2T-5G is a monolithic integrated circuit from onsemi, designed as a step-down switching regulator (buck converter). This device is part of the LM2575 series, which is ideal for easy and convenient design of power supply systems. The LM2575D2T-5G is specifically configured to provide a fixed 5V output voltage and can handle a load current of up to 1.0 A. It operates with a wide input voltage range of 4.75 V to 40 V, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5.0 | V |
| Output Current | 1.0 | A |
| Input Voltage Range | 4.75 to 40 | V |
| Oscillator Frequency | 52 | kHz |
| Efficiency (Typical) | 77 | % |
| Operating Junction Temperature Range | -40 to +125 | °C |
| Maximum Supply Voltage | 45 | V |
| Thermal Shutdown | Yes | |
| Current Limit Protection | Yes | |
| Package Type | D2PAK-5 |
Key Features
- Fixed 5V output voltage with adjustable versions available in the series.
- Guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions.
- Wide input voltage range: 4.75 V to 40 V.
- High efficiency, especially compared to three-terminal linear regulators.
- Requires only 4 external components for operation.
- TTL shutdown capability with low power standby mode (approximately 80 μA standby current).
- Thermal shutdown and cycle-by-cycle current limiting for full protection under fault conditions.
- Uses readily available standard inductors.
- AEC-Q100 qualified and PPAP capable for automotive and other demanding applications.
Applications
The LM2575D2T-5G is suitable for a variety of applications, including:
- Power supplies for battery chargers.
- Industrial control systems.
- Automotive systems (NCV prefix versions are AEC-Q100 qualified).
- Telecommunications equipment.
- Consumer electronics requiring efficient and reliable power conversion.
Q & A
- What is the output voltage of the LM2575D2T-5G? The output voltage of the LM2575D2T-5G is fixed at 5.0 V.
- What is the maximum output current of the LM2575D2T-5G? The maximum output current is 1.0 A.
- What is the input voltage range for the LM2575D2T-5G? The input voltage range is from 4.75 V to 40 V.
- What is the oscillator frequency of the LM2575D2T-5G? The oscillator frequency is 52 kHz.
- Does the LM2575D2T-5G have thermal shutdown protection? Yes, it includes thermal shutdown protection.
- How many external components are required for the LM2575D2T-5G to operate? Only 4 external components are required.
- Is the LM2575D2T-5G suitable for automotive applications? Yes, the NCV prefix versions are AEC-Q100 qualified and PPAP capable.
- What is the efficiency of the LM2575D2T-5G? The typical efficiency is around 77%.
- Does the LM2575D2T-5G have current limit protection? Yes, it includes cycle-by-cycle current limiting.
- What is the standby current when the LM2575D2T-5G is in shutdown mode? The standby current is approximately 80 μA.
