LT3971A
FEATURES n Ultralow Quiescent Current: 2.8μA IQ Regulating 12VIN to 3.3VOUT n Fixed Output Voltages: 5V 2.2μA IQ Regulating 12VIN to 5VOUT n Low Ripple Burst Mode® Operation: Output Ripple < 15m VP-P n Wide Input Voltage Range: 4.3V to 38V n 1.3A Maximum Output Current n Adjustable Switching Frequency: 200k Hz to 2MHz n Synchronizable Between 250k Hz to 2MHz n Fast Transient Response n Accurate 1V Enable Pin Threshold n Low Shutdown Current: IQ = 700n A n Power Good Flag n Soft-Start Capability n Internal pensation n Output Voltage: 1.19V to 30V n Small Thermally Enhanced 10-Lead MSOP Package
APPLICATIONS n USB VBUS Regulation n Automotive Battery Regulation n Power for Portable Products n Industrial Supplies
LT3971A/LT3971A-5
38V, 1.3A, 2MHz Step-Down Regulator with
2.2µA Quiescent Current
DESCRIPTION
The LT®3971A is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 38V. Low quiescent current design consumes only 2.8μA of supply...
