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Data Sheet
LV514495-V, Synchronous, Buck DC/DC Controller With Wide Duty Cycle Range
1 Features
-
- Device temperature grade
1: –40°C to +125°C ambient temperature range
- Versatile synchronous buck DC/DC controller
- 6-V to 95-V wide input voltage range
- 125°C maximum junction temperature
- 0.8-V reference with ±1% feedback accuracy
- 0.8-V to 60-V adjustable output voltage
- 45-ns tON(min) for high VIN
/ VOUT ratio
- 145-ns tOFF(min) for low dropout
- Lossless RDS(on) or shunt current
sensing
- Optimized for CISPR 11 and CISPR 32 Class B EMI
requirements
- 100-kHz to 1-MHz switching frequency
- SYNC in and SYNC out
capability
- Selectable diode
emulation or FPWM
- 7.5-V gate drivers for standard VTH
MOSFETs
- 14-ns adaptive dead-time control
- 2.3-A source and 3.5-A sink capability
- Inherent protection features for robust design
- Adjustable output voltage soft start
- Hiccup-mode overcurrent protection
- Input UVLO with hysteresis
- VCC and gate-drive UVLO protection
- Precision enable input and open-drain PGOOD
indicator for sequencing and control
- Thermal shutdown protection with hysteresis
- 20-pin VQFN package with wettable flanks
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