LM2596S-5.0(UMW) power chips

The **UMW LM2596S-5.0** is a high-efficiency, monolithic step-down (buck) DC-DC converter from UMW, capable of delivering up to 3 A continuous output current. This fixed 5.0 V output version belongs to the widely used LM2596/LM2596HV family, integrating all active functions of a switching regulator — including an internal high-current N-channel power MOSFET — while requiring only a minimal number of external components.

**Key Specifications:**
– Brand: UMW
– Part Number: LM2596S-5.0
– Topology: Non-synchronous buck (step-down)
– Input Voltage Range: 7 V to 40 V
– Fixed Output Voltage: 5.0 V
– Output Current: up to 3 A
– Switching Frequency: Fixed 150 kHz
– Quiescent Current (Iq): 80 µA (typ., no-load)
– Integrated Switch: Built-in high-side N-MOSFET
– Regulation: Excellent line and load regulation
– Protection Features: Thermal shutdown, current limiting
– Package: TO-263-5 (DDPAK / D²PAK-5, 5 leads with tab)
– Packaging: Tape & Reel
– Operating Ambient Temperature: –40 °C to +125 °C (TA)

**Typical Applications:**
– 12 V / 24 V industrial and automotive power supplies
– Distributed power systems and point-of-load regulation
– Battery chargers and backup power circuits
– Embedded systems, IoT devices, and consumer electronics
– LED drivers, instrumentation, and test equipment requiring stable 5 V rail from wide input

The LM2596S-5.0 offers proven reliability, simple design-in (internal frequency compensation and oscillator), high efficiency, and robust performance in a thermally enhanced TO-263 package — making it one of the most popular and cost-effective 3 A buck regulators for 7–40 V input to 5 V output conversion across industrial, automotive, and general-purpose applications.