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UD05158 데이터시트(PDF) 1 Page - Unisonic Technologies

부품명 UD05158
상세설명  1.5A, LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERTER
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제조업체  UTC [Unisonic Technologies]
홈페이지  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UD05158 데이터시트(HTML) 1 Page - Unisonic Technologies

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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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