Datasheet Analog Devices LTC3728LIGN-1#PBF — Ficha de datos

LTC3728L-1
Dual, 550kHz, 2-Phase
Synchronous Regulator
DESCRIPTION FEATURES n Dual, 180° Phased Controllers Reduce Required
Input Capacitance and Power Supply Induced Noise
OPTI-LOOP® Compensation Minimizes COUT
±1.5% Output Voltage Accuracy
Power Good Output Voltage Indicator
Phase-Lockable Fixed Frequency 250kHz to 550kHz
Over Current Latchoff Disabled
Wide VIN Range: 4.5V to 28V (35V for LTC3728LI-1)
Operation
Very Low Dropout Operation: 99% Duty Cycle
Adjustable Soft-Start Current Ramping
Foldback Output Current Limiting
Output Overvoltage Protection
Low Shutdown IQ: 20μA
5V and 3.3V Standby Regulators
3 Selectable Operating Modes: Constant Frequency,
Burst Mode® Operation and PWM
5mm × 5mm QFN and 28-Lead Narrow SSOP
Packages The LTC®3728L-1 is a dual high performance step-down
switching regulator controller that drives all N-channel …