Datasheet > UP1637

UP1637

更新时间： 2022-02-26 12:38:42

品牌	Logo	应用领域
力智 - UPI		/
页数	文件大小	规格书
24页	387K
描述
Phase Synchronous-Rectified Buck Controller

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UP1637 数据手册

uP1637

6/5/4/3/2/1-Phase Synchronous-Rectified Buck Controller

for Next Generation GPU Core Power

Features

General Description

The uP1637 is an 6/5/4/3/2/1-phase PWM controller Selectable 6/5/4/3/2/1-Phase Operation by

specifically designed to provide high-precision output

voltage system for next generation GPUs. The uP1637

works with tables which programed by I2C. The controller

also includes programmable output voltage and active

Hardware Setting

Precision Core Voltage Regulation

Differential Remote Voltage Sensing

voltage positioning functions to adjust the output voltage Continuous Inductor DCR Current Sensing

as a function of the load current, so it is optimally positioned

I2C Interface

for a load current transient.

Voltage Adjustment

The uP1637 adopts continuous DCR current sensing for

load line programming and channel current balance. The

uP1637 also provides accurate and reliable over current

protection, over voltage protection and a delayed power

good output. The uP1637 includes an I2C interface,

allowing the controller to communicate with other devices.

Signals sent over the I2C bus can command the uP1637

to adjust output voltage, switching frequency and operating

phase number in different load current state.

Switching Frequency Adjustment

Operating Phase Number Adjustment

High Accuracy Reference Voltage

0.5% Accuracy

Selectable Initial Voltage

I2C Programmable Output Voltage

Over-Current Protection

Over/Under-Voltage Protection

Adjustable Soft-Start

The uP1637 is available in VQFN5x5-40L package.

Ordering Information

Programmable Operation Frequency from 100kHz

to 1MHz per Phase

Order Number

Package

Top Marking

uP1637P

uP1637PQGJ VQFN5x5- 40L

RoHS Compliant and Halogen Free

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.

Pin Configuration

Applications

30 29 28 27 26 25 24 23 22 21

GPU Core Power Supplies

VOUT

FBRTN

PWM6

PWM5

PWM4

PWM3

PWM2

PWM1

DACQ

EAP

GND

COMP

5VCC

ISP6

ISP1

9 10

uP1637-DS-F0000, Mar. 2012

www.upi-semi.com

12 3 4 5 6 7...24

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