U U
LTC3703-5
60V Synchronous Switching Regulator Controller
FEATURES
■ High Voltage Operation: Up to 60V ■ Large 1Ω ...
U U
LTC3703-5
60V Synchronous Switching
Regulator Controller
FEATURES
■ High Voltage Operation: Up to 60V ■ Large 1Ω Gate Drivers (with 5V Supply) ■ No Current Sense Resistor Required ■ Step-Up or Step-Down DC/DC Converter ■ Dual N-Channel MOSFET Synchronous Drive ■ Excellent Line and Load Transient Response ■ Programmable Constant Frequency: 100kHz to
600kHz ■ ±1% Reference Accuracy ■ Synchronizable up to 600kHz ■ Selectable Pulse Skip Mode Operation ■ Low Shutdown Current: 25µA Typ ■ Programmable Current Limit ■ Undervoltage Lockout ■ Programmable Soft-Start ■ 16-Pin Narrow SSOP and 28-Pin SSOP Packages
U APPLICATIO S
■ 48V Telecom and Base Station Power Supplies ■ Networking Equipment, Servers ■ Automotive and Industrial Control
, LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *U.S. Patent Numbers: 5408150, 5055767, 6677210, 5847554, 5481178, 6304066, 6580258; Others Pending.
DESCRIPTIO
The LTC®3703-5 is a synchronous step-down switching
regulator controller that can directly step-down voltages from up to 60V input, making it ideal for telecom and automotive applications. The LTC3703-5 drives external logic level N-channel MOSFETs using a constant frequency (up to 600kHz), voltage mode architecture.
A precise internal reference provides 1% DC accuracy. A high bandwidth error amplifier and patented* line feed forward compensation provide very fast line and load transient response...
