Datasheet > FSP3128SAD

FSP3128SAD

更新时间： 2024-11-02 07:00:19

品牌	Logo	应用领域
FOSLINK		转换器输入元件
页数	文件大小	规格书
10页	362K
描述
WIDE INPUT 3A STEP-DOWN CONVERTER

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中文翻译

获取价格

数据手册

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FSP3128SAD 数据手册

WIDE INPUT 3A STEP-DOWN CONVERTER

FSP3128

FEATURES

GENERAL DESCRIPTION

3A Output Current

The FSP3128 is a current-mode step-down DC/DC

converter that generates up to 3A output current at

400kHz switching frequency. The device can

operate with input voltage up to 30V.

Up to 95% Efficiency

4.5V to 30V Input Range

6µA Shutdown Supply Current

400kHz Switching Frequency

Adjustable Output Voltage

Cycle-by-Cycle Current Limit Protection

Thermal Shutdown Protection

Internal Soft-Start Function

Frequency Fold Back at Short Circuit

Stability with Wide Range of Capacitors,

Including Low ESR Ceramic Capacitors

SOP8L/EP(Exposed Pad) Package

Consuming only 6µA in shutdown mode, the

FSP3128 is highly efficient with peak efficiency at

95% when in operation. Protection features include

cycle-by-cycle current limit, thermal shutdown, and

frequency fold back at short circuit. The device also

includes an internal soft start function to prevent

overshoot.

The FSP3128 is available in SOP8L/EP package and

requires very few external devices for operation.

TYPICAL APPLICATION

TFT LCD Monitors or Televisions and HDTV

Portable DVD Players

Car-Powered or Battery-Powered Equipment

Set-Top Boxes

Telecom Power Supplies

DSL and Cable Modems and Routers

PIN ASSIGNMENT

(Top View)

N/C

COMP

PIN DESCRIPTION

Pin Number Pin Name

Pin Description

Bootstrap. This pin acts as the positive rail for the high-side switch’s gate driver.

Connect a 10nF between this pin and SW.

Input Supply. Bypass this pin to G with a low ESR capacitor. See Input Capacitor in

Application Information section.

Switch Output. Connect this pin to the switching end of the inductor.

Ground.

Feedback Input. The voltage at this pin is regulated to 1.222V. Connect to the resistor

divider between the output and ground to set output voltage.

COMP Compensation Pin. See Compensation Technique in Application information section.

Enable Input. When higher than 1.3V, this pin turns the IC on. When lower than 0.7V,

this pin turns the IC off. Output Voltage is discharged when the IC is off. This pin has a

small internal pull up current to a high level voltage when pin is not connected.

N/C

Not Connected.

Exposed Pad shown as dashed box. The exposed thermal pad should be connected to

board ground plane and pin 4. The ground plane should include a large exposed copper

pad under the package for thermal dissipation. The leads and exposed pad should be

flush with the board, without offset from the board surface.

2007-1-4

1/10

12 3 4 5 6 7...10

中文翻译

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与FSP3128SAD相关器件

型号	品牌	获取价格	描述	数据表
FSP3128SD	FOSLINK	获取价格	WIDE INPUT 3A STEP-DOWN CONVERTER
FSP3129	FOSLINK	获取价格	WIDE INPUT 2A STEP-DOWN CONVERTER
FSP3129SAD	FOSLINK	获取价格	WIDE INPUT 2A STEP-DOWN CONVERTER
FSP3129SD	FOSLINK	获取价格	WIDE INPUT 2A STEP-DOWN CONVERTER
FSP3130	FOSLINK	获取价格	PWM CONTROL 2A STEP-DOWN CONVERTER
FSP3130SAG	FOSLINK	获取价格	PWM CONTROL 2A STEP-DOWN CONVERTER
FSP3130SG	FOSLINK	获取价格	PWM CONTROL 2A STEP-DOWN CONVERTER
FSP3131	FOSLINK	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER
FSP3131SAG	FOSLINK	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER
FSP3131SG	FOSLINK	获取价格	PWM CONTROL 3A STEP-DOWN CONVERTER

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