Datasheet > RT9992

RT9992

更新时间： 2024-11-11 17:01:51

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
25页	364K
描述
5+2 CH DC/DC Converters for DV

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技术参数
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RT9992 技术参数

Status：	Active	Vin (min) (V)：	2.7
Vin (max) (V)：	5.5	Number of Channels：	7
Number of Buck Converters：	2	Number of Boost Converters：	2
Number of Negative Outputs：	0	Number of LED Drivers：	1
Number of LDO Regulators：	2	Features：	100% Duty Cycle;Current Mode Control;Enable Input;Internal Compensation;OCP;OVP;UVP
Package Type：	WQFN4x4-32	Datasheet：	#N/A

RT9992 数据手册

RT9992

5+2 CH DC/DC Converters for DV

General Description

Features

^All Power MOSFETs Integrated

This is a 5+2 CH integrated PMIC forDV application. There

are 5DC/DC converters : one synchronous step-up, one

selectable synchronous step-up/step-down, two

synchronous step-downs, and one WLEDdriver in either

asynchronous step-up or current source mode, selectable

by VOUT6 initial voltage. In addition, there are 2 LDO

regulators : one RTC LDO and one generic LDO. The

generic LDO can choose internal feedback loop for fixed

output 2.5V or external feedback loop for customized

output voltage. Both low voltage synchronous step-up

converters are with load disconnect function. All power

MOSFETs and compensation networks are integrated.

There is a power good indicator to monitor FB2, FB3, and

FB4 voltage status. CH1 to CH5 enabling can be controlled

flexibly : enabled independently or in preset sequences.

^5 Channels with Internal Compensation

^Flexible Enabling Control

^Enabled Independently or in Preset Power On/

Off Sequences

^CH2 Synchronous Converter in Step-Up or Step-

Down Mode Selectable by SEL Pin

^Synchronous Step-Down DC/DC Converter

^Up to 95% Efficiency

^100% (max) Duty Cycle

^Synchronous Step-Up DC/DC Converter

^Adjustable Output Voltage

^Up to 95% Efficiency

 Asynchronous Step-Up Converter to Drive WLED,

Selectable Between Step-Up or Current Source

^LED Open Protection (OVP6) in Step-Up Mode

^PWM Dimming Control

Ordering Information

RT9992

 Load Disconnect Function for CH1 and CH2

Synchronous Step-Up Converter

Package Type

QW : WQFN-32L 4x4 (W-Type)

 Fixed 2MHz Switching Frequency for CH1, CH2,

CH3, and CH4

Lead Plating System

Z : ECO (Ecological Element with

 Fixed 1MHz Switching Frequency for CH6

 Generic LDO (CH5)

Halogen Free and Pb free)

Note :

Richtek products are :

^Output Voltage : Fixed 2.5V or Set by External

Feedback Network, Determined by FB5 Initial

Voltage

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering processes.

 RTC LDO : Fixed Output Voltage 3.1V

 Power Good Indicator to Monitor Output Voltage

Status of CH2, CH3, and CH4

Pin Configuration

 32-Lead Package

(TOP VIEW)

 RoHS Compliant and Halogen Free

Applications

 CMOSDV

32 31 30 29 28 27 26 25

FB1

PGOOD

FB5

VOUT5

PVDD5

EN5

SEQ

LX2

VOUT6

LX6

EN6

 Gaming

PVDD3

LX3

GND

EN3

FB3

Marking Information

FB4

10 11 12 13 14 15 16

ES : Product Code

ES YM

DNN

YMDNN : Date Code

WQFN-32L 4x4

is a registered trademark of Richtek Technology Corporation.

DS9992-05 July 2019

www.richtek.com

12 3 4 5 6 7...25

中文翻译

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