Analog Devices LTC3630A

Description

The LTC®3630A 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 powerswitches, 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.

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 VIN
• 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

Typical applications

• Portable Instruments
• Industrial Control Supplies
• Automotive
• Medical Devices
• Avionics

More information

• Datasheet
• IC product information