US4651S Description
The UTC US4651S is a high performance current mode power-switch ideally suited for low standby power. Drain start up make the power reliable on startup design and lower standby power. At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for Higher conversion efficiency at light load condition.
US4651S Key Features
- UTC proprietary frequency hopping technology for Improved EMI performance
- Power-saving mode for high light-load and standby efficiency
- Soft Start
- Dynamic peak current limiting for constant output power
- Built-in synchronized slope pensation
- OLP,OVP,OTP and VDD clamp for higher security
- Drain start up for lower standby power
- Fixed switch frequency 65kHz
- Gate output voltage clamped at 15V
- Low start-up current