Datasheet > RT2805AGSP

RT2805AGSP

更新时间： 2024-11-05 22:58:43

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
15页	291K
描述
IC REG BUCK ADJ 5A

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数据手册

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RT2805AGSP 数据手册

RT2805A

5A, 36V, 500kHz Current Mode Asynchronous Step-Down

Converter

General Description

Features

^5A Output Current

The RT2805Ais a current mode asynchronous step-down

converter that achieves excellent load and line regulation.

Over a wide input voltage range from 5.5V to 36V and

supports output current up to 5A. The Current mode

operation provides fast transient response and eases loop

stabilization.

^Wide Operating Input Range 5.5V to 36V

^Adjustable Output Voltage from 1.222V to 26V

^High Efficiency up to 90%

^Internal Compensation Minimizes External Parts

Count

^Internal Soft-Start

An adjustable soft-start reduces the stress on the input

source at startup. In shutdown mode, the regulator draws

only 25μA of supply current. The RT2805A requires a

minimum number of readily available external

components, providing a compact solution. The RT2805A

provides protection functions inducing input under voltage

lockout, cycle-by-cycle current limit, short circuit

protection and thermal shutdown protection.

^110mΩ Internal Power MOSFET Switch

^25μA Shutdown Mode

^Fixed 500kHz Frequency

^Thermal Shutdown

 Cycle-by-Cycle Current Limit

 Available In an SOP-8 (Exposed Pad) Package

 RoHS Compliant and Halogen Free

The RT2805A is available in the SOP-8 (Exposed Pad)

package.

Applications

 Distributive Power Systems

 Battery Charger

Ordering Information

 DSL Modems

RT2805A

 Pre-regulator for Linear Regulators

Package Type

SP : SOP-8 (Exposed Pad-Option 2)

Marking Information

Lead Plating System

G : Green (Halogen Free and Pb Free)

RT2805AGSP : Product Number

RT2805A

Note :

YMDNN : Date Code

GSPYMDNN

Richtek products are :

 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.

Simplified Application Circuit

VIN

BOOT

RT2805A

OUT

Chip Enable

OUT

GND

is a registered trademark of Richtek Technology Corporation.

DS2805A-03 August 2015

www.richtek.com

12 3 4 5 6 7...15

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