Datasheet > UP1911R

UP1911R

更新时间： 2024-02-22 20:44:31

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
14页	243K
描述
2 to 4 Phase PWM Extender for Multiphase Synchronous Buck Converter

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UP1911R 数据手册

uP1911R

2 to 4 Phase PWM Extender

for Multiphase Synchronous Buck Converter

Features

General Description

The uP1911R is a high precision sequence array, which is

intended for operation phase number extension in

multiphase synchronous-rectified buck converter. It

consists of three individual sequence circuits to support

up to 2 to 4 phase extension application. This part has 4

PWM outputs for external MOSFET drivers, and 4 ISEN

inputs. With this phase extender, a 2-phase buck PWM

controller is able to control a 4-phase synchronous buck

regulator. This device has an internal LDO that regulates

12V input to a 5.2V output as the power supply of control

logic. Designed with 12V CMOS process, the uP1911R

provides high switching speed and low power dissipation.

The uP1911R is available in WQFN3x3 - 16L package.

5V/12V Supply Voltage

Integrated 5.2V LDO Regulator for 12V Input

Support 1 to 2, 2 to 4 Phase Extension

Low Power Dissipation

Low Charge Injection

Near Zero Switching Time

RoHS Compliant and Halogen Free

WQFN3x3 - 16L Package

Applications

Desktop Computer

Motherboards

Ordering Information

Order Number

uP1911RQDD

Package

Top Marking

uP1911R

Pin Configuration

WQFN3x3 -16L

Note: 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.

PWMD 13

PWMB 14

PWMC 15

PWMA 16

12VCC

ISENA

ISEN1

ISENC

GND

uP1911R-DS-F0000, Nov. 2016

www.upi-semi.com

12 3 4 5 6 7...14

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