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UD05158 데이터시트(PDF) 1 Page - Unisonic Technologies |
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UD05158 데이터시트(HTML) 1 Page - Unisonic Technologies |
1 / 5 page UNI SONI C TECHNOLOGI ES CO., LTD UD05158 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 5 Copyright © 2017 Unisonic Technologies Co., Ltd QW-R115-019.b 1 .5 A, LOW N I OSE 1 .5 M H Z SY N CH RON OU S ST EP-DOWN CON V ERT ER DESCRI PT I ON 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 200 μA 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. APPLI CAT I ON S * Cellular and Smart Phones * Microprocessors and DSP Core Supplies * Set Top Box * USB Dongle * Digital Still and Video Cameras * Portable Navigation Device FEAT U RES * 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 1.5MHz Switching Frequency. * Current Mode Operation * Internal Soft-Start. * Current Limit Protection * Over-temperature Protection. * Input Under Voltage Lockout (UVLO) |
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