Datasheet > VcoreCont> RT8857

RT8857

更新时间： 2024-02-24 19:48:50

品牌	Logo	应用领域
立锜 - RICHTEK		电压核心转换驱动控制器
页数	文件大小	规格书
26页	412K
描述
4/3/2/1-Phase PWM Controller with Embedded Drivers for CPU Core Power Supply

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技术参数
数据手册

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RT8857 技术参数

Status：	Active	VID Table Support：	K8;K8_M2;VR10.x;VR11.1
Number of Phases：	4	Vcc (typ) (V)：	12
Vin (min) (V)：	10.8	Vin (max) (V)：	13.2
Accuracy (Vout>=1V) (+/- %)：	0.5	Freq (typ) (kHz)：	300
Built-in DAC Generator：	Yes	Number of MOSFET Drivers：	2
Features：	Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;Current Mode Control;Cycle-by-Cycle Current Limit;DCR Current Sense;Diode Emulation Mode;Droop Control;Enable Input;Fast Transient Response;OVP;Power Good;SCP;UVP	Package Type：	WQFN7x7-48

RT8857 数据手册

RT8857/A

Outline Dimension

DETAILA

Pin #1 ID and Tie Bar Mark Options

Note : The configuration of the Pin #1 identifier is optional,

but must be located within the zone indicated.

Dimensions In Millimeters

Dimensions In Inches

Symbol

Min

Max

Min

Max

0.031

0.002

0.010

0.012

0.278

0.207

0.278

0.207

0.700

0.000

0.175

0.200

6.950

5.050

6.950

5.050

0.800

0.050

0.250

0.300

7.050

5.250

7.050

5.250

0.028

0.000

0.007

0.008

0.274

0.199

0.274

0.199

0.500

0.020

0.350

0.450

0.014

0.018

W-Type 48L QFN 7x7 Package

Richtek Technology Corporation

Headquarter

Richtek Technology Corporation

Taipei Office (Marketing)

5F, No. 20, Taiyuen Street, Chupei City

Hsinchu, Taiwan, R.O.C.

5F, No. 95, Minchiuan Road, Hsintien City

Taipei County, Taiwan, R.O.C.

Tel: (8863)5526789 Fax: (8863)5526611

Tel: (8862)86672399 Fax: (8862)86672377

Email: marketing@richtek.com

Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit

design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be

guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.

www.richtek.com

DS8857/A-01 April 2011

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