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UD05158

UTC

LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERTER

UNISONIC TECHNOLOGIES CO., LTD UD05158 LINEAR INTEGRATED CIRCUIT 1.5A, LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERT...


UTC

UD05158

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Description
UNISONIC TECHNOLOGIES CO., LTD UD05158 LINEAR INTEGRATED CIRCUIT 1.5A, LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERTER  DESCRIPTION The UTC UD05158 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 1.5A continuous output current over from 2.7V to 5.5V input supply range, with excellent load and line regulation. The output voltage is adjustable from 0.6V to the input voltage. During shutdown, the input is disconnected from the output and the shutdown current is less than 1uA. Other key features include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. The UTC UD05158 at 1.5A maximum output current while consuming only 200μA of no-load quiescent current. Ultra-low RDS(ON) integrated MOSFETs and 100% duty cycle operation make the UTC UD05158 an ideal choice for high-output voltage, high-current applications which require a low dropout threshold.  APPLICATIONS * Cellular and Smart Phones * Microprocessors and DSP Core Supplies * Set Top Box * USB Dongle * Digital Still and Video Cameras * Portable Navigation Device  FEATURES * Output Current : Up to 1.5A * Output Voltage : 0.6V to VIN * Input Voltage : 2.7V to 5.5V * Low-RDS(ON) Internal Power MOSFETs. * High-Efficiency Synchronous-Mode Operation, up to 95% * 200uA (typ.) No Load Quiescent Current * Shutdown Current < 1µA * 100% Duty Cycle Operation * Fixed 1.5MH...




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