Datasheet > PMIC> RT9907PQV

RT9907PQV

更新时间： 2024-09-20 04:07:19

品牌	Logo	应用领域
立锜 - RICHTEK		转换器
页数	文件大小	规格书
19页	473K
描述
3 Channel DC/DC Converters IC with High-Efficiency Step-Up and Step-Down

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RT9907PQV 数据手册

Preliminary

RT9907

3 Channel DC/DC Converters IC with High-Efficiency Step-Up

and Step-Down

General Description

Features

^z1.5V to 5.5V Battery Input Voltage Range

^zMain step-up DC-DC Converter

`1.5V to 5.5V Adjustable Output Voltage

`Up to 90% Efficiency

The RT9907 is a three channel power-supply solution for

digital still cameras and other battery-powered devices. It

integrates an asynchronous step-up and two synchronous

step-downDC-DC converters. The RT9907 is targeted for

applications that use two AA cells or a single lithium-ion

battery.

`2.6A, 0.3Ω Internal Power Switch

^zTwo Step-Down DC-DC Converters

`0.8V to 5.5V Adjustable Output Voltage

`94% Efficiency

The threeDC-DC converters (CH1, CH2, CH3) accept input

voltage from 1.5V to 5.5V. Each DC-DC converter has

better transient response and excellent stability by

providing current-mode control and external compensation

network. With built-in Internal MOSFET and up to 1.4MHz

operating frequency, the RT9907 allows minimum BOM

cost and PCB area.

`100% Duty Cycle

^zUp to 1.4MHz Switching Frequency

^z1μA Supply Current in Shutdown Mode

^zProgrammable Soft Start Function

z Independent Enable Pin (CH1, CH2, CH3)

z External Compensation Network (CH1, CH2, CH3)

z Short Circuit Protection (CH1, CH2, CH3)

z Over Voltage Protection (CH2)

The step-downDC-DC converters (CH2, CH3) can regulate

output voltage as low as 0.8V. Three operational modes

are available: PWM, PSM, Low-Dropout modes. At PWM

mode, Internal synchronous rectifier with low R_DS(ON)

dramatically reduces conduction loss and achieve 94%

efficiency. It enters Low-Dropout mode when normal PWM

cannot provide regulated output voltage by continuously

turning on the upper P-MOSFET. No external Schottky

diode is required in practical application.

z 24-Lead VQFN Package

z RoHS Compliant and 100% Lead (Pb)-Free

Applications

z Digital Still Camera

z PDAs

z PortableDevice

EachDC-DC converter has independent enable input and

soft-start function allowing versatile power sequence

combination. Complete protection functions are

implemented such as short circuit, over-voltage protection.

Pin Configurations

(TOP VIEW)

The RT9907 is available in small VQFN-24L 4x4 package.

Ordering Information

24 23 22 21 20 19

RT9907

COMP3

VDD3

LX3

EN1

ENM

VDD2

LX2

Package Type

QV : VQFN-24L 4x4 (V-Type)

GND

PGND3

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

PGND2

LX1

10 11 12

Note :

Richtek Pb-free and Green products are :

`RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

VQFN-24L 4x4

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

`100% matte tin (Sn) plating.

DS9907-07 August 2007

www.richtek.com

12 3 4 5 6 7...19

中文翻译

下载PDF

与RT9907PQV相关器件

型号	品牌	获取价格	描述	数据表
RT9911	RICHTEK	获取价格	6 Channel DC/DC Converters
RT9911_11	RICHTEK	获取价格	6 Channel DC/DC Converters
RT9911GQV	RICHTEK	获取价格	6 Channel DC/DC Converters
RT9911PQV	RICHTEK	获取价格	6 Channel DC/DC Converters
RT9912A	RICHTEK	获取价格	Multi-Channel Power Management IC for Portable Device
RT9917	RICHTEK	获取价格	7 Channel DC/DC Converters
RT9921	RICHTEK	获取价格	Integrated Multi-Channel DC/DC Converter for TFT LCD Panels
RT9921A	RICHTEK	获取价格	Integrated Multi-Channel DC/DC Converter for TFT LCD Panels
RT9941	RICHTEK	获取价格	Power Management ICs for Handheld Device
RT9945	RICHTEK	获取价格	Power Management ICs for Handheld Device

与RT9907PQV相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

34
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

31
SL74HC10N：高性能三输入与非门解析
2024-09-03

104
AIC1781A 电池充电控制器深度解析
2024-09-03

100

产品中心

服务支持

精选活动

关于我们

帮助中心

RT9907PQV

RT9907PQV 数据手册

与RT9907PQV相关器件

与RT9907PQV相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

RT9907PQV

RT9907PQV 数据手册

与RT9907PQV相关器件

与RT9907PQV相关文章

您还可以找

您在本页遇到什么问题？