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6,464 pcs
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6464 pcs | On Request | 1 | On Request | On Request | 10+ | On Request | On Request |
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The LTC1628CG#TRPBF from LT is a high-performance dual step-down switching regulator controller designed to drive N-channel synchronous power MOSFETs. It utilizes a constant frequency current mode architecture, allowing for adjustable frequencies up to 300kHz. The out-of-phase operation of its two controller output stages minimizes input capacitance requirements and power supply induced noise.
Key electrical specifications include a wide input voltage range of 3.5V to 36V, a very low dropout operation with a 99% duty cycle, and an output voltage accuracy of -1%. The controller supports adjustable soft-start current ramping, foldback output current limiting, and latched short-circuit shutdown. It also features output overvoltage protection and remote output voltage sensing.
Available in 5mm x 5mm QFN and 28-pin SSOP packages, the LTC1628CG#TRPBF is suitable for various battery-operated devices and power distribution systems. Its design incorporates OPTI-LOOP compensation for optimized transient response and selectable constant frequency or Burst Mode operation.
The input voltage range is 3.5V to 36V.
The switching frequency is programmable from 150kHz to 300kHz.
The output voltage accuracy is –1%.
The duty cycle is up to 99%.
The shutdown quiescent current is 20mA.
The device is available in QFN and SSOP packages.