Datasheet > FSP3127S33AE

FSP3127S33AE

更新时间： 2024-11-02 07:00:19

品牌	Logo	应用领域
FOSLINK		稳压器
页数	文件大小	规格书
8页	258K
描述
150KHZ 500MA STEP DOWN VOLTAGE REGULATOR

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中文翻译

获取价格

数据手册

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FSP3127S33AE 数据手册

150KHZ 500MA STEP DOWN VOLTAGE REGULATOR

FSP3127

FEATURES

GENERAL DESCRIPTION

3.3V, 5V, 12V, and adjustable output versions

The FSP3127 series of regulators are monolithic

integrated circuits that provide all the active functions

for a step-down (buck) switching regulator, capable

of driving a 0.5A load with excellent line and load

regulation. These devices are available in fixed

output voltages of 3.3V, 5V, 12V, and an adjustable

output version, and are packaged in a 8-lead DIP and

a 8-lead surface mount package.

Adjustable version output voltage range, 1.2V to

37V ±4% max over line and load conditions

Available in 8-pin surface mount and DIP-8

package

Guaranteed 0.5A output current

Input voltage range up to 40V

Requires only 4 external components

150 kHz fixed frequency internal oscillator

TTL Shutdown capability

Low power standby mode, I_Qtypically 85 µA

High Efficiency

Uses readily available standard inductors

Thermal shutdown and current limit protection

Requiring

components, these regulators are simple to use and

feature internal frequency compensation,

minimum number of external

fixed-frequency oscillator, and improved line and

load regulation specifications.

The FSP3127 series operates at a switching

frequency of 150 kHz thus allowing smaller sized

filter components than what would be needed with

lower frequency switching regulators. Because of its

high efficiency, the copper traces on the printed

circuit board are normally the only heat sinking

needed.

A standard series of inductors (both through hole and

surface mount types) are available from several

different manufacturers optimized for use with the

FSP3127 series. This feature greatly simplifies the

design of switch-mode power supplies.

Typical Application

Simple

high-efficiency

step-down

(buck)

regulator

Efficient pre-regulator for linear regulators

On-card switching regulators

Positive to Negative convertor

PIN ASSIGNMENT

Other features include a guaranteed ±4% tolerance

on output voltage under all conditions of input

voltage and output load conditions, and ±15% on the

oscillator frequency. External shutdown is included,

featuring typically 85 µA stand-by current. Self

protection features include a two stage frequency

reducing current limit for the output switch and an

over temperature shutdown for complete protection

under fault conditions.

(Top View)

OUTPUT

VIN

GND

ON/OFF

*: Pin 1,2,3 No internal connection, but should be soldered to PC board for best heat transit

ABSOLUTE MAXIMUM RATINGS(NOTE1)

Parameter

Maximum Supply Voltage

ON/OFF Pin Input Voltage

Feedback Pin Voltage

Value

-0.3 to 25

– 0.3 to 25

-1

Unit

Output Voltage to Ground(Steady State)

Power Dissipation

Internally limited

+150

Maximum Junction Temperature

ESD Susceptibility(Note 2)

Storage Temperature

°C

2000

-65 to 150

215

Vapor Phase (60 sec.)

Infrared (15 sec.)

Lead Temperature (PDIP8L) (Soldering, 10 sec)

Lead Temperature (SOP8L)

°C

220

260

°C

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating

Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific

performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.

Note 2: The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.

2007-4-9

1/8

12 3 4 5 6 7 8

中文翻译

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与FSP3127S33AE相关器件

型号	品牌	获取价格	描述	数据表
FSP3127S33E	FOSLINK	获取价格	150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
FSP3127S50AE	FOSLINK	获取价格	150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
FSP3127S50E	FOSLINK	获取价格	150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
FSP3127SAE	FOSLINK	获取价格	150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
FSP3127SE	FOSLINK	获取价格	150KHZ 500MA STEP DOWN VOLTAGE REGULATOR
FSP3128	FOSLINK	获取价格	WIDE INPUT 3A STEP-DOWN CONVERTER
FSP3128SAD	FOSLINK	获取价格	WIDE INPUT 3A STEP-DOWN CONVERTER
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

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