Datasheet > UP1734

UP1734

更新时间： 2022-02-26 11:18:51

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
13页	188K
描述
1.0MHz, 5.0A, High-Efficiency Synchronous-Rectified Buck Converter

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UP1734 数据手册

uP1734

1.0MHz, 5.0A, High-Efficiency

Synchronous-Rectified Buck Converter

Features

General Description

The uP1734 is a high efficiency synchronous-rectified buck

converter with internal power switches. Fixed 1.0MHz

PWM operation allows possible smallest output ripple and

external component size. With high conversion efficiency

and small package, the uP1734 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

Peak 5.0A Output Current

Accurate Reference: 0.6V ( 1%)

Up to 95% Conversion Efficiency

Low Quiescent Current

With internal low R_DS(ON)switches, the uP1734 is capable

of delivering peak 5.0A output 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: 70mΩ and 50mΩ

Current Mode PWM Operation

Fixed Frequency : 1.0MHz

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

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

protections. The uP1734 is available in space-saving

WDFN3x3-10L and PSOP-8L packages.

100% Maximum Duty Cycle for Lowest Dropout

Internal Soft-Start

Over Voltage and Under Voltage Protection

Over Temperature and Over Current Protection

WDFN3x3-10L and PSOP-8L Packages

RoHS Compliant and Halogen Free

Ordering Information

Order Number

uP1734PDDA

uP1734QDDA

uP1734PSW8

Package Type

WDFN3x3-10L

PSOP-8L

Top Marking

uP1734P

uP1734Q

uP1734P

Applications

Battery-Powered Portable Devices

MP3 Players

Note:

(1) Please check the sample/production availability with

uPI representatives.

(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

Digital Cameras

802.11 WLAN Power Supplies

FPGA/ASIC Power Supplies

Pin Configuration

Dynamically Adjustable Power Supply for

CDMA/WCDMA Power Amplifiers

10 VIN

VIN

VDD

VIN

VDD

GND

USB-Based xDSL Modems and Other Network

Interface Cards

POK

Point-of-Load Regulation

WDFN3x3-10L

(uP1734P)

WDFN3x3-10L

(uP1734Q)

GND

VIN

VDD

GND

POK

PSOP-8L

uP1734-DS-F0100, Sep. 2014

www.upi-semi.com

12 3 4 5 6 7...13

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