STMicroelectronics L3751 Buck Controller

STMicroelectronics L3751 Buck Controller
STMicroelectronics L3751 Synchronous Buck Controller is a 6V - 75V wide input voltage range controller. With a minimum on-time of 40ns, the L3751 has an extremely high voltage conversion ratio in the switching frequency range of 100kHz-1MHz. Diode Emulation (DEM) implements a pulse-skipping mode that maximizes efficiency at light loads, providing controlled output voltage ripple. Forced PWM over the load range keeps the switching frequency constant and minimizes output voltage ripple.

feature
6V - 75V wide input voltage range
Adjustable output voltage range from 0.8V - 60V
100kHz - 1MHz switching frequency range
40 ns minimum on-time for extreme duty cycle
Low dropout operation during line transients
Adjustable Soft-Start or Input Voltage Tracking
Pulse skipping or forced PWM operation at light loads
Synchronize
Adjustable Accuracy Enable
Power Good Open Collector Output Verification VOUT
7.5V Gate Driver for Standard VTH MOSFET
Constant Current Protection with Hiccup Mode
Precision or Lossless Programmable Current Sensing
Improved line transient response
Input voltage under voltage lockout
Internal voltage monitoring
Thermal Protection
Operating Junction Temperature Range -40°C - 150°C
application
Telecom, Networking and Industrial Applications
failsafe system
Unregulated 24V and 48V input voltage bus
Convert from high voltage batteries to 12V and 5V rails