Wide Input Range: 4V to 60V
Output Voltages up to 36V (Step-Down)
Burst Mode® Operation: <100µA Supply Current
10µA Shutdown Supply Current
±1.3% Reference Accuracy
200kHz Fixed Frequency
Drives N-Channel MOSFET
Programmable Undervoltage Lockout
Internal High Voltage Regulator for Gate Drive
Current Limit Unaffected by Duty Cycle
16-Pin Thermally Enhanced TSSOP Package
Industrial Power Distribution
12V and 42V Automotive and Heavy Equipment
High Voltage Single Board Systems
Distributed Power Systems
Avionicsn Telecom Power
The LT®3724 is a DC/DC controller used for medium power,low part count, low cost, high efficiency supplies. It offersa wide 4V-60V input range (7.5V minimum startupvoltage) and can implement step-down, step-up, invertingand SEPIC topologies.
The LT3724 includes Burst Mode operation, which reducesquiescent current below 100µA and maintainshigh efficiency at light loads. An internal high voltage biasregulator allows for simple biasing and can be back drivento increase efficiency.
Additional features include fixed frequency current modecontrol for fast line and load transient response; a gate drivercapable of driving large N-channel MOSFETs; a precisionundervoltage lockout function; 10µA shutdown current;short-circuit protection; and a programmable soft-startfunction that directly controls output voltage slew rates atstartup which limits inrush current, minimizes overshootand facilitates supply sequencing.
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