FAN5361 6MHz，600mA / 750mA Synchronous Buck Regulator
The FAN5361 is a step-down switching voltage regulator designed for applications such as cell phones, tablets, and data cards. It operates at a nominal fixed frequency of 6MHz to reduce external component values and supports both forced PWM and pulse frequency modulation (PFM) modes for optimal efficiency across various load conditions.
The device features a proprietary synchronous rectification architecture capable of peak efficiencies up to 92%. It is available in two packages: a 6-bump Wafer-Level Chip-Scale Package (WLCSP) with a 0.4mm pitch and a 6-lead ultra-thin MLP package, both supporting an operating temperature range of -40°C to +85°C.
| Switching Frequency | 6MHz |
|---|---|
| Output Current Capability | 600mA or 750mA |
| Input Voltage Range | 2.3V to 5.5V |
| Output Voltage Range | 1.0V to 1.90V |
| Quiescent Current (No Load) | 35uA typical |
| Peak Efficiency | 92% |
| Operating Temperature Range | -40°C to +85°C |
The device is offered in a 6-bump WLCSP with 0.4mm pitch and a 6-lead 2 x 2mm UMLP.
Yes, the PWM modulator can be synchronized to an external frequency source provided on the MODE pin.