Datasheet > GM3255S8T

GM3255S8T

更新时间： 2024-11-11 03:39:35

品牌	Logo	应用领域
GAMMA		稳压器
页数	文件大小	规格书
19页	539K
描述
1.5A 280kHz DC-DC CONVERTOR BOOST REGULATOR

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GM3255S8T 数据手册

Features

Description

Integrated Power Switch: 1.5 A Guaranteed

GM3255 products are 280 kHz switching regulators with a

high efficiency, 1.5 A integrated switch. These parts oper-

ate over a wide input voltage range, from 2.7 V to 30 V.

Input Voltage Range: 2.7 V to 30 V

HighFrequencyAllowsforSmallComponents

Minimum External Components

The flexibility of the design allows the chips to operate in

most power supply configurations, including boost, flyback,

forward, inverting, and SEPIC. The ICs utilize current

modearchitecture, whichallowsexcellentloadandlinereg-

ulation, as well as a practical means for limiting current.

Combining high frequency operation with a highly inte-

grated regulator circuit results in an extremely compact

power supply solution. The circuit design includes provi-

sions for features such as frequency synchronization, shut-

down, and feedback controls for either positive or negative

voltage regulation.

Easy External Synchronization

Built in Overcurrent Protection

Frequency Foldback Reduces Component

Stress During an Overcurrent Condition

Thermal Shutdown with Hysteresis

RegulatesEitherPositiveorNegativeOutput

Voltages

Shut Down Current: 50 µA Maximum

Wide Temperature Range Commercial

Commercial Grade : 0 to 70°C (GM3255)

Application

Multiple Output Flyback Supplies

Inverting Supplies

Boost Regulators

CCFL Backlight Driver

Laptop Computer Supplies

TFT LCD Bias Supplies

TYPICAL APPLICATION CIRCUITS

GM3255

3.72K

OUT

MBRS120T3

PGND

0.01µF

Test AGND

22µH

22µF

3.3V

1.28k

22µF

www.gammamicro.com

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