Datasheet > RS6513

RS6513

更新时间： 2024-09-25 03:35:51

品牌	Logo	应用领域
ORISTER		转换器
页数	文件大小	规格书
7页	216K
描述
PWM Control 2A Step-Down Converter

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RS6513 数据手册

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RS6513

PWM Control 2A Step-Down Converter

RS6513 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit

is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as

well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function

and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be

reduced from 350KHz to 30KHz. Also, an internal compensation block is built in to minimum external component

count.

With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode connected externally, these

ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices

when coupled with the SOP–8L mini-package, providing such outstanding features as low current consumption.

Since this converter can accommodate an input voltage up to 18V, it is also suitable for the operation via an AC

adapter.

Features

Applications

• PC Motherboard

• LCD Monitor

• Graphic Card

• DVD-Video Player

• Telecom Equipment

• ADSL Modem

• Printer and other Peripheral Equipment

• Microprocessor core supply

• Input voltage: 3.6V to 18V.

• Output voltage: 0.8V to V_CC.

• Duty ratio: 0% to 100% PWM control

• Oscillation frequency: 350KHz typ.

• Soft-start, Current limit, Enable function

• Thermal Shutdown function

• Built-in internal SW P-channel MOS

• SOP-8L Pb-Free Package.

• Networking power supply

^.Pin Configurations

Pin 5: Switch Pin. Connect external

Pin 1: Feedback pin.

inductor/diode here. Minimize trace area at

this pin to reduce EMI

Pin 2: Power-off pin

H: Normal operation

(Step-down operation)

L: Step-down operation stopped

Pin 6: Switch Pin. Connect external

inductor/diode here. Minimize trace area at

this pin to reduce EMI

(All circuits deactivated)

Pin 3: Add an external resistor to set max

output current

Pin 7: GND Pin

Pin 8: GND Pin

Pin 4: IC power supply pin

DS-RS6513-03

Oct, 2007

www.Orister.com

12 3 4 5 6 7

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