LTC3882

RECOMMENDED FOR NEW DESIGNS

Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

Analog Devices LTC3882 Product Info

10 February 2026 6

Features

PMBus/I²C Compliant Serial Interface
- Monitor Voltage, Current, Temperature and Faults
- Digitally Programmable Voltage, Current Limit, Soft-Start/Stop, Sequencing, Margining, AVP and UV/OV Thresholds
3V ≤ VINSNS ≤ 38V, 0.5V ≤ V_OUT ≤ 5.25V
±0.5% Output Voltage Accuracy
Programmable PWM Frequency or External Clock Synchronization from 250kHz to 1.25MHz

Accurate PolyPhase^® Current Sharing
Internal EEPROM with Fault Logging and ECC
IC Supply Range: 3V to 13.2V
Resistor or Inductor DCR Current Sensing
Optional Resistor Programming for Key Parameters
40-Pin (6mm × 6mm) QFN Package
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LTC3882 is a dual, PolyPhase DC/DC synchronous step-down switching regulator controller with PMBus compliant serial interface. It uses a constant frequency, leading-edge modulation, voltage mode architecture for excellent transient response and output regulation. Each PWM channel can produce output voltages from 0.5V to 5.25V using a wide range of 3.3V compatible power stages, including power blocks, DrMOS or discrete FET drivers. Up to four LTC3882s can operate in parallel for 2-, 3-, 4-, 6- or 8-phase operation.

LTC3882 system configuration and monitoring is supported by the LTpowerPlay^® software tool. The device’s serial interface can be used to read back input voltage, output voltage and current, temperature and fault status. A wide range of operating parameters can be set via the digital interface or stored in internal EEPROM for use at power up. Switching frequency and phase, output voltage and device address can also be programmed using external configuration resistors.


	PWM Enable Output	TG/BG Control	HW Write Protect	Dedicated PGOOD	Differential V_OUT Sense
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