Würth Elektronik MagI³C FDSM Fixed Step Down Regulator Modules
Würth Elektronik MagI³C FDSM Fixed Step-Down Regulator Modules are fully integrated, fixed-output voltage DC/DC power supplies. These modules combine the switching power stage, control circuitry, inductor, and input and output capacitors in one package. The FDSM modules do not require any external components for operation. The standard THT package allows easy assembly and is pin-compatible with LM78 linear regulators. The modules comply with the low-noise electromagnetic emission norm EN 55022 class B. These FDSM modules provide peak efficiency up to 95% and a fixed output voltage of 3.3V or 5V. Ideal applications include point-of-load, replacements for linear regulators, interface and microcontroller supplies, and general-purpose supplies.
Features
- Up to 1A output current
- 3.5V to 74.5V input voltage range
- Output voltage range from 3.3V, 5V, 12V, and 15V
- Low output voltage ripple (~10mV)
- Up to 95% peak efficiency
- Short-circuit protection
- -40°C to +85°C operating temperature range
- Output overvoltage and overtemperature protection
- Low conducted and radiated EMI (compliant to EN55022 class B)
- SIP-3 package
- Current mode regulation (CM)
- RoHS and REACH compliant
Applications
- 12V/24V rail:
- Replacement for linear regulators
- Interface and microcontroller supply
- Servers, data, and telecom
- System power supplies
- MCUs and MPUs
- V0 interface
- 48V rail:
- Point-of-Load DC-DC applications from 12V, 15V, 18V, 24V, 36V and 48V industrial rails
- 48V rail motor drive control
- 48V rail sensor supply
- 48V rail logistics and automation applications
- General purpose
FDSM Portfolio
Typical Circuit Diagram
Videos
Development Board
Associated Tools
Würth Elektronik REDEXPERT AC Loss Tool
Online software tool that simulates power inductors for precision comparison.
Related Solutions
Würth Elektronik Magl³C Module Solutions
Features low-profile, easy-to-use DC/DC converters as well as corresponding evaluation boards.