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LTC3728LX - 2-Phase Synchronous Regulators

Download the LTC3728LX datasheet PDF. This datasheet also includes the LTC3728L variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (LTC3728L_LinearTechnology.pdf) that lists specifications for multiple related part numbers.

General Description

The LTC®3728L/LTC3728LX are dual high performance step-down switching regulator controllers that drive all N‑channel synchronous power MOSFET stages.

A constantfrequency, current mode architecture allows phase-lockable frequency of up to 550kHz.

Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase.

Key Features

  • n Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n OPTI-LOOP® Compensation Minimizes COUT n ±1% Output Voltage Accuracy (LTC3728LC) n Power Good Output Voltage Indicator n Phase-Lockable Fixed Frequency 250kHz to 550kHz n Dual N-Channel MOSFET Synchronous Drive n Wide VIN Range: 4.5V to 28V Operation n Very Low Dropout Operation: 99% Duty Cycle n Adjustable Soft-Start Current Ramping n Foldback Output Current Limiting n Latched Short-Circuit Shutdo.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LTC3728L 2-Phase Synchronous Regulators
LTC3728L-1 2-Phase Synchronous Regulator
LTC3728 2-Phase Synchronous Step-Down Switching Regulator
LTC3720 Single Phase VRM8.5 Current Mode Step-Down Controller
LTC3722-1 Phase Modulated Full Bridge Controllers
LTC3722-2 Phase Modulated Full Bridge Controllers
LTC3723-1 Synchronous Push-Pull PWM Controllers
LTC3723-2 Synchronous Push-Pull PWM Controllers
LTC3725 Single-Switch Forward Controller and Gate Driver
LTC3726 Secondary-Side Synchronous Forward Controller