LM2575D2T-ADJG

Key Features

Type: Step-Down (Buck) Switching Regulator

Input Voltage Range: 4.75 V – 40 V

Output Voltage Range: 1.23 V – 37 V (adjustable via resistor divider)

Output Current: Up to 1 A continuous

Switching Frequency: 52 kHz fixed

Output Voltage Tolerance: ±4% over line and load

Efficiency: Up to 85% typical

Standby Quiescent Current: 50 µA typical

On-Chip Features:

Internal fixed-frequency oscillator

Thermal shutdown protection

Current limiting

On/off control pin for low-power standby mode

Soft-Start Behavior: Controlled start-up reduces inrush current

Output Ripple: Typically <50 mV (with proper layout and filtering)

Package Type: D2PAK-5 (TO-263-5) with tab (surface-mount)

Package Dimensions: 10.16 mm × 8.89 mm × 4.57 mm

Mounting: Surface Mount (SMD)

Operating Temperature Range: −40 °C to +125 °C

RoHS / REACH: Compliant and Pb-Free

Performance Highlights

Wide 4.75 V – 40 V input range supports automotive and industrial supplies

Adjustable output supports multiple rail voltages (1.23 V – 37 V)

Up to 1 A output current for small to medium power loads

Integrated switch and control reduce external components

Low standby current for battery-powered systems

Excellent load and line regulation

Thermal and overcurrent protection ensure high reliability

Applications

Automotive and industrial power supplies

Embedded systems and microcontroller power rails

Battery chargers and portable devices

Communication and networking equipment

DC motor control and instrumentation

General-purpose step-down voltage conversion