The LTC3814EFE-5#TRPBF is a synchronous step-up switching regulator controller that can generate output voltages up to 60V. The LTC3814EFE-5#PBF uses a constant off-time peak current control architecture to deliver very high duty cycles with accurate cycle-by-cycle current limit without requiring a sense resistor.
A precise internal reference provides ±0.5% DC accuracy. A high bandwidth (25MHz) error amplifier provides very fast line and load transient response. Large 1Ω gate drivers allow the LTC3814EFE-5#PBF to drive large power MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN. A shutdown pin allows the LTC3814EFE-5#PBF to be turned off reducing the supply current to <230μA.
Feature
High Output Voltages: Up to 60V
Large 1Ω Gate Drivers
No Current Sense Resistor Required
Dual N-Channel MOSFET Synchronous Drive
±0.5% 0.8V Voltage Reference
Fast Transient Response
Programmable Soft-Start
Generates 5.5V Driver Supply
Power Good Output Voltage Monitor
Adjustable Off-Time/Frequency: tOFF(MIN) < 100ns
Adjustable Cycle-by-Cycle Current Limit
Undervoltage Lockout On Driver Supply
Output Overvoltage Protection
Thermally Enhanced 16-Pin TSSOP Package
Applications
24V Fan Supplies
48V Telecom and Base Station Power Supplies
Networking Equipment, Servers
Automotive and Industrial Control Systems
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
