Datasheet > RT8092

RT8092

更新时间： 2024-11-12 19:52:31

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
27页	429K
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RT8092 技术参数

Status：	Active	Vin (min)(V)：	2.5
Vin (max)(V)：	5.5	Number of Outputs：
Vout (min)(V)：	0.303125	Vout (max)(V)：	2.8
Preset Vout(V)：		Output Adj. Method：	Digital;Fixed
Iout (max)(A)：		Current Limit (typ)(A)：	6.2
Freq (typ)(kHz)：		Freq (min)(kHz)：
Freq (max)(kHz)：		Ext Sync：
Ron_HS (typ)(mOhm)：		Ron_LS (typ)(mOhm)：
Iq (typ)(mA)：	0.06	Features：	Internal Compensation;OCP;SCP;Selectable (PSM or PWM);UVP
Package Type：	WL-CSP1.2x2-15;WQFN3.5x3.5-14

RT8092 数据手册

RT8092

3MHz 4A High Efficiency Step-Down Converter with I²C

Interface

General Description

select V_OUTvoltage level, peak current limit level, PWM

control mode, and so on. Other features include soft-start,

auto discharge, lower internal reference voltage, over-

temperature, and over-current protection.

The RT8092 is a Peak-Current Mode Pulse-Width-

Modulated (PWM) step-down DC/DC converter with I²C

control interface. Capable of delivering 4Acontinuing output

current over a wide input voltage range from 2.5V to 5.5V,

the RT8092 is ideally suited for portable electronic devices

that are powered from 1-cell Li-ion battery or from other

power sources within the range such as cellular phones,

PDAs and handy-terminals.

Features

^2.5V to 5.5V Input Range

^Low Operation Quiescent Current

 Normal Mode I_Q< 60μA

 Low Power Mode I_Q< 15μA

^Output range From 0.3V to 5.5V

^Bank 0 : 0.3V to 0.7V

Internal synchronous rectifier with low R_DS(ON)dramatically

reduces conduction loss at PWM mode. No external

Schottky barrier diode is required in practical application.

The RT8092 enters low-dropout mode when normal PWM

cannot provide regulated output voltage by continuously

turning on the upper P-MOSFET. The RT8092 enters shut-

down mode and consumes less than 5μA when the EN

pin is pulled low. The switching ripple is easily smoothed-

out by small package filtering elements due to a fixed

operation frequency of 3MHz. The small WL-CSP-15B

1.2x2 (BSC) and WQFN-14L 3.5x3.5 packages are ideal

for small PCB area applications.

^Bank 1 : 0.6V to 1.4V

^Bank 2 : 1.2V to 2.8V

^Bank 3 : 2.4V to 5.5V

^The Default Value is 2.8V (VSEL = High) and 1V

(VSEL = Low)

^4A Continuing Output Current

^Support DVS in the Same Bank

^V_OUTAdjusting Range (max, min) is Settable

^High Efficiency

To increase battery life time, the RT8092 provides low

power mode with I_Q< 15μA in standby and light-load

applications. The RT8092 also includesDynamic Voltage

Scaling (DVS) for system low power applications.



^90% at 5V 2.8V with 1.5A Load

^3MHz Fixed-Frequency PWM Operation

^Auto-PSM/PWM or Force-PWM Selectable

^Support Remote Ground Sensing for Accurate

Output Voltage

The I²C interface let the RT8092 controllable flexibly to

Simplified Application Circuit

RT8092

PVIN

Input Power

Output

Load

AVDD

GNDR

VOUT

PGND

Enable

SCL

SDA

VSEL

I C Control

AGND

VOUT Select

is a registered trademark of Richtek Technology Corporation.

DS8092-06 October 2018

www.richtek.com

12 3 4 5 6 7...27

中文翻译

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RT8092URGQW	RICHTEK	获取价格	High Efficiency Step-Down Converter
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