Key facts
- Brand
- Vishay
- Model
- FX5545G008
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-04
Start here

Vishay FX5545G008 Low Profile 3mm DC/DC Buck Converter Datasheet
The FX5545G008 is a synchronous buck converter designed for portable electronics. It operates from 2.5 V to 6 V input and provides a programmable output from 0.8 V to 4.5 V with up to 3 A current and 10 W output power. Efficiency reaches 95 % and the device includes integrated PWM/PSM control, low output ripple and a 20‑pin BGA package.
Typical applications include cordless phones, PDAs, point‑of‑load supplies for FPGA, microprocessor and DSP drivers, portable computers, battery backup and cameras. The part is qualified for industrial temperature ranges (‑40 °C to +85 °C) and is available in bulk, tape or reel packaging.
Vishay FX5545G008 specifications
| Input voltage range | 2.5 V to 6 V |
|---|---|
| Output voltage range | 0.8 V to 4.5 V |
| Maximum output current | 3 A |
| Output power | 10 W |
| Efficiency | up to 95 % |
| Shutdown current | 1 µA |
| Operating temperature range | -40 °C to +85 °C |
| Package type | 20‑pin BGA |
| Oscillator frequency | 400 kHz |
| Output ripple and noise | 80 mVpp (DC‑20 MHz) |
All Vishay FX5545G008 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the input voltage range of the FX5545G008?
The converter accepts an input voltage from 2.5 V to 6 V.
What is the maximum efficiency of this buck converter?
It can achieve up to 95 % efficiency.
What is the input voltage range of the FX5545G008?
The converter operates from 2.5 V to 6 V input.
What output voltage does the FX5545G008 provide?
It offers an adjustable output from 0.8 V to 4.5 V.
