LTC3630A

RECOMMENDED FOR NEW DESIGNS

High Efficiency, 76V 500mA Synchronous Step-Down Converter

Analog Devices LTC3630A Product Info

10 February 2026 4

Features

Wide Operating Input Voltage Range: 4V to 76V
Synchronous Operation for Highest Efficiency
Internal High Side and Low Side Power MOSFETs
No Compensation Required
Adjustable 50mA to 500mA Maximum Output Current
Low Dropout Operation: 100% Duty Cycle
Low Quiescent Current: 12μA
Wide Output Range: 0.8V to V_IN

0.8V ±1% Feedback Voltage Reference
Precise RUN Pin Threshold
Internal and External Soft-Start
Programmable 1.8V, 3.3V, 5V or Adjustable Output
Few External Components Required
Low Profile (0.75mm) 3mm × 5mm DFN and Thermally-Enhanced MSE16 Packages
AEC-Q100 Qualified for Automotive Applications

Part details & applications

The LTC3630A is a high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draws only 12μA typical DC supply current while maintaining a regulated output voltage at no load.

The LTC3630A can supply up to 500mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency and for reducing output ripple and component size. The LTC3630A’s combination of Burst Mode^® operation, integrated power switches, low quiescent current, and programmable peak current limit provides high efficiency over a broad range of load currents.

With its wide input range of 4V to 76V, the LTC3630A is a robust converter suited for regulating a wide variety of power sources. A feedback comparator output enables multiple LTC3630As to be paralleled in higher current applications.

The LTC3630A is available in the thermally-enhanced 3mm × 5mm DFN and the MSE16 packages.


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