Datasheet > UP1728S

UP1728S

更新时间： 2024-02-19 17:52:27

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
13页	189K
描述
1.2MHz, 3.0A, High-Efficiency Synchronous-Rectified Buck Converter

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UP1728S 数据手册

uP1728S

1.2MHz, 3.0A, High-Efficiency

Synchronous-Rectified Buck Converter

Features

General Description

The uP1728S is a high efficiency synchronous-rectified

buck converter with internal power switches. Fixed 1.2MHz

PWM operation allows possible smallest output ripple and

external component size. With high conversion efficiency

and small package, the uP1728S is ideally suitable for

portable devices and USB/PCIE-based interface cards,

where PCB area is especially concerned.

2.6V to 5.5V Input Voltage Range

Adjustable Output from 0.6V to V_IN

Guaranteed 3.0A Output Current

Accurate Reference: 0.6V ( 1%)

Up to 95% Conversion Efficiency

Low Quiescent Current

With internal low RDS(ON) switches, the uP1728S is capable

of delivering 3.0Aoutput current over a wide input voltage

range from 2.6V to 5.5V. The output voltage is adjustable

from 0.6V to VIN by a voltage divider.

Integrated Low R_DS(ON)Upper and Lower MOSFET

Switches: 80mΩ and 60mΩ

Current Mode PWM Operation

Fixed Frequency : 1.2MHz

Other features include internal soft-start, chip enable, over-

voltage, under-voltage, over-temperature and over-current

protections. The uP1728S is available in a space-saving

WDFN3x3-10L package.

100% Maximum Duty Cycle for Lowest Dropout

Internal Soft-Start

Over Voltage and Under Voltage Protection

Over Temperature and Over Current Protection

WDFN3x3-10L Package

Ordering Information

Order Number

uP1728SDDA

Package Type

WDFN3x3-10L

Top Marking

uP1728S

RoHS Compliant and Halogen Free

Applications

Note:

Battery-Powered Portable Devices

(1) Please check the sample/production availability with

uPI representatives.

MP3 Players

(2) uPI products are compatible with the current IPC/JEDEC

J-STD-020 requirement. They are halogen-free, RoHS

compliant and 100% matte tin (Sn) plating that are suitable

for use in SnPb or Pb-free soldering processes.

Notebook Computers

Wireless and DSL Modems

Personal Information Appliances

IP Phones

Pin Configuration

Digital Cameras

10 EN

VDD

VIN

802.11 WLAN Power Supplies

FPGA/ASIC Power Supplies

POK

GND

MODE

Dynamically Adjustable Power Supply for

CDMA/WCDMA Power Amplifiers

GND

USB-Based xDSL Modems and Other Network

Interface Cards

WDFN3x3-10L

Point-of-Load Regulation

uP1728S-DS-F00A0, Mar. 2018

www.upi-semi.com

12 3 4 5 6 7...13

中文翻译

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与UP1728S相关器件

型号	品牌	获取价格	描述	数据表
UP1728SDDA	UPI	获取价格	1.2MHz, 3.0A, High-Efficiency Synchronous-Rectified Buck Converter
UP1734	UPI	获取价格	1.0MHz, 5.0A, High-Efficiency Synchronous-Rectified Buck Converter
UP1734PDDA	UPI	获取价格	1.0MHz, 5.0A, High-Efficiency Synchronous-Rectified Buck Converter
UP1734PSW8	UPI	获取价格	1.0MHz, 5.0A, High-Efficiency Synchronous-Rectified Buck Converter
UP1734QDDA	UPI	获取价格	1.0MHz, 5.0A, High-Efficiency Synchronous-Rectified Buck Converter
UP1735	UPI	获取价格	3A, 23V, High-Efficiency Synchronous-Rectified Buck Converter
UP1735PSU8	UPI	获取价格	3A, 23V, High-Efficiency Synchronous-Rectified Buck Converter
UP1735QSU8	UPI	获取价格	3A, 23V, High-Efficiency Synchronous-Rectified Buck Converter
UP1735RSU8	UPI	获取价格	3A, 23V, High-Efficiency Synchronous-Rectified Buck Converter
UP1740S	UPI	获取价格	Complete DDR3/ DDR4 Memory Power Solution Converter

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