LTC3886

RECOMMENDED FOR NEW DESIGNS

60V Dual Output Step-Down Controller with Digital Power System Management

Analog Devices LTC3886 Product Info

10 February 2026 7

Features

PMBus/I²C Compliant Serial Interface
Telemetry Read-Back Includes V_IN, I_IN, V_OUT, I_OUT, Temperature and Faults
Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV/OC, Frequency, and Control Loop Compensation
Output Error Less Than ±0.5% Over Temperature
Integrated 16-Bit ADC and 12-Bit DAC
Integrated High Side Current Sense Amplifier
Internal EEPROM with ECC and Fault Logging
Integrated N-Channel MOSFET Gate Drivers

Power Conversion

Wide V_IN Range: 4.5V to 60V
V_OUT0, V_OUT1 Range: 0.5V to 13.8V
Analog Current Mode Control
Accurate PolyPhase^® Current Sharing for Up to 6 Phases (100kHz to 750kHz)
Available in a 52-Lead (7mm × 8mm) QFN Package

Part details & applications

The LTC3886/LTC3886-1 is a dual PolyPhase DC/DC synchronous step-down switching regulator controller with I²C-based PMBus compliant serial interface. This controller employs a constant-frequency, current-mode architecture, with high voltage input and output capability along with programmable loop compensation. The LTC3886 is supported by the LTpowerPlay^® software development tool with graphical user interface (GUI).

The EXTVCC pin supports voltages up to 14V allowing for optimized circuit efficiency and die temperature, and for the controller output to supply the chip power. Switching frequency, output voltage, and device address can be programmed both by digital interface as well as external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Both outputs have an independent power good indicator and FAULT function.

The LTC3886 can be configured for discontinuous (pulse-skipping) mode or continuous inductor current mode. The LTC3886-1 also includes a sequencing off feature to discharge very large output capacitors.

APPLICATIONS

Telecom, Datacom, and Storage Systems
Industrial and Point of Load Applications

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