LTC3872
Features n No Current Sense Resistor Required n VOUT up to 60V n Constant Frequency 550k Hz Operation n Internal Soft-Start and Optional External Soft-Start n Adjustable Current Limit n Pulse Skipping at Light Load n VIN Range: 2.75V to 9.8V n ±1.5% Voltage Reference Accuracy n Current Mode Operation for Excellent Line and Load
Transient Response n Low Profile (1mm) SOT-23 and 2mm × 3mm DFN
Packages
Applications n Tele Power Supplies n 42V Automotive Systems n 24V Industrial Controls n IP Phone Power Supplies
Description
The LTC®3872 is a constant frequency current mode boost DC/DC controller that drives an N-channel power MOSFET and requires very few external ponents. The No RSENSETM architecture eliminates the need for a sense resistor, improves efficiency and saves board space.
The LTC3872 provides excellent AC and DC load and line regulation with ±1.5% output voltage accuracy. It incorporates an undervoltage lockout feature that shuts down the device when the input voltage falls...
