LTC3630 Step-Down Converter

Product Highlights > LTC3630 Step-Down Converter

            LTC3630 Step-Down Converter
                    Analog Devices' LTC3630 high efficiency, 65 V 500 mA synchronous step-down converter
    

Analog Devices' LTC3630 is a high efficiency step-down DC/DC converter with internal high side and synchronous power switches that draws only 12 µA typical DC supply current while maintaining a regulated output voltage at no load.

The LTC3630 can supply up to 500 mA 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 LTC3630'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 4 V to 65 V, the LTC3630 is a robust converter suited for regulating a wide variety of power sources. Additionally, the LTC3630 includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment. A feedback comparator output enables multiple LTC3630s to be paralleled in higher current applications.

The LTC3630 is available in the thermally-enhanced 3 mm x 5 mm DFN and the MSE16 packages.

Features

Operating input voltage range: 4 V to 65 V
Synchronous operation for highest efficiency
Internal high side and low side power MOSFETs
Adjustable 50 mA to 500 mA maximum output current
Low dropout operation: 100% duty cycle
Low quiescent current: 12 µA

0.8 V ±1% feedback voltage reference
Precise RUN pin threshold
Internal and external soft-start
Programmable 1.8 V, 3.3 V, 5 V or adjustable output
Few external components required

Applications

Industrial control supplies
Medical devices
Distributed power systems
Portable instruments

Battery-operated devices
Automotive
Avionics