Overview
The LM2575-5.0YWM-TR is a step-down (buck) switching regulator IC produced by Microchip Technology. This component is part of the LM2575 series, which provides all the active functions necessary for a step-down switching regulator. The LM2575-5.0YWM-TR is specifically designed to deliver a fixed output voltage of 5V and can drive a load current of up to 1A. It is known for its simplicity in use, requiring only a minimum number of external components, and includes internal frequency compensation and a fixed-frequency oscillator. This regulator is an efficient replacement for traditional three-terminal adjustable linear regulators, reducing the need for large heat sinks and offering high efficiency and protection features such as cycle-by-cycle current limiting and thermal shutdown.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Microchip Technology | Mounting Style | SMD/SMT |
| Topology | Buck | Series | LM2575 |
| Package/Case | SOIC-24 | Output Voltage | 5 V |
| Output Current | 1 A | Number of Outputs | 1 Output |
| Input Voltage, Min | 4 V | Input Voltage, Max | 40 V |
| Switching Frequency | 52 kHz | Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C | Moisture Sensitive | Yes |
Key Features
- Fixed output voltage of 5V, with other versions available for 3.3V, 12V, and 15V, and adjustable versions from 1.23V to 37V.
- Guaranteed 1A output current.
- Wide input voltage range: 4V to 40V.
- Requires only 4 external components.
- 52kHz fixed frequency internal oscillator.
- Low power standby mode with IQ typically < 200µA.
- High efficiency, typically > 80% for adjustable versions.
- Uses readily available standard inductors.
- Thermal shutdown and current limit protection.
- 100% electrical thermal limit burn-in.
Applications
The LM2575-5.0YWM-TR is suitable for a variety of applications where a high-efficiency step-down switching regulator is required. These include:
- Power supplies for electronic devices requiring a stable 5V output.
- Replacement for linear regulators in existing designs to improve efficiency and reduce heat sink requirements.
- Embedded systems and IoT devices needing compact and efficient power management solutions.
- Industrial control systems and automation equipment.
- Consumer electronics such as audio equipment, set-top boxes, and other devices requiring reliable DC-DC conversion.
Q & A
- Q: What is the output voltage of the LM2575-5.0YWM-TR?
A: The output voltage of the LM2575-5.0YWM-TR is fixed at 5V.
- Q: What is the maximum output current of the LM2575-5.0YWM-TR?
A: The maximum output current is 1A.
- Q: What is the input voltage range for the LM2575-5.0YWM-TR?
A: The input voltage range is from 4V to 40V.
- Q: What is the switching frequency of the LM2575-5.0YWM-TR?
A: The switching frequency is fixed at 52kHz.
- Q: Does the LM2575-5.0YWM-TR have built-in protection features?
A: Yes, it includes cycle-by-cycle current limiting and thermal shutdown for full protection under fault conditions.
- Q: How many external components are required to use the LM2575-5.0YWM-TR?
A: Only 4 external components are required.
- Q: Is the LM2575-5.0YWM-TR RoHS compliant?
A: Yes, the LM2575-5.0YWM-TR is RoHS compliant.
- Q: What is the operating temperature range for the LM2575-5.0YWM-TR?
A: The operating temperature range is from -40°C to +85°C.
- Q: How can I ensure the authenticity of the LM2575-5.0YWM-TR?
A: Ensure you purchase from authorized distributors or suppliers that rigorously test and verify the credentials of original manufacturers and authorized agents.
- Q: Where can I find detailed information and application notes for the LM2575-5.0YWM-TR?
A: Detailed information, application notes, and datasheets can be found on the official Microchip Technology website or through authorized distributors.
