MIC2290

更新时间： 2024-09-25 22:54:51

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器肖特基二极管
页数	文件大小	规格书
12页	100K
描述
2mm 】 2mm PWM Boost Regulator with Internal Schotty Diode

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MIC2290 数据手册

MIC2290

Micrel

MIC2290

2mm × 2mm PWM Boost Regulator with

Internal Schotty Diode

General Description

Features

The MIC2290 is a 1.2MHz , PWM, boost-switching regulator

housed in the small size 2mm × 2mm MLF™-8 package. The

MIC2290 features an internal Schottky diode that reduces

circuit board area and total solution cost. High power density

is achieved with the MIC2290’s internal 34V/0.5A switch,

allowing it to power large loads in a tiny footprint.

• Internal Schottky diode

• 2.5V to 10V input voltage

• Output voltage adjustable to 34V

• Over 500mA switch current

• 1.2MHz PWM operation

• Stable with ceramic capacitors

• <1% line and load regulation

• Low input and output ripple

• <1µA shutdown current

The MIC2290 implements a constant frequency 1.2MHz

PWM control scheme. The high frequency operation saves

board space by reducing external component sizes. The

fixed frequency PWM topology also reduces switching noise

and ripple to the input power source.

• UVLO

• Output overvoltage protection

• Over temperature protection

• 2mm × 2mm 8-pin MLF™ package

• –40°C to +125°C junction temperature range

The MIC2290’s wide 2.5V to 10V input voltage allows direct

operation from 3- to 4-cell NiCad/NiMH/Alkaline batteries, 1-

and 2-cell Li Ion batteries, as well as fixed 3.3V and 5V

systems.

Applications

The MIC2290 is available in a low-profile 2mm × 2mm

8-pin MLF™ leadless package and operates from a junction

temperature range of –40°C to +125°C.

• Organic EL power supply

• TFT LCD bias supply

• 12V DSL power supply

• CCD bias supply

All support documentation can be found on Micrel’s web

site at www.micrel.com.

• SEPIC converters

Typical Application

10µH

V_OUT

12V

Efficiency

V_IN

OUT

V_IN= 4.2V

MIC2290BML

VIN

V_IN= 3.2V

Li Ion

Battery

OUT

V_IN= 3.6V

1µF

10µF

GND

4, 8

0.02 0.04 0.06 0.08 0.1

LOAD CURRENT (A)

Simple 12V Boost Regulator

MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-081104

August 2004

12 3 4 5 6 7...12

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与MIC2290相关器件

型号	品牌	获取价格	描述	数据表
MIC2290_07	MICREL	获取价格	2mm 】 2mm PWM Boost Regulator with Internal S
MIC2290BML	MICREL	获取价格	2mm 】 2mm PWM Boost Regulator with Internal S
MIC2290BML	MICROCHIP	获取价格	Switching Regulator, Current-mode, 2A, 1350kHz Switching Freq-Max, PDSO8, 2 X 2 MM, MLF-8
MIC2290BMLTR	MICROCHIP	获取价格	Switching Regulator, Current-mode, 2A, 1350kHz Switching Freq-Max, PDSO8, 2 X 2 MM, MLF-8
MIC2290YML	MICREL	获取价格	2mm 】 2mm PWM Boost Regulator with Internal S
MIC2290YML TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 1350kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, LEAD FREE, MLF-8
MIC2290YMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 1350kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, LEAD FREE, MLF-8
MIC2290YMLTR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 1350kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, LEAD FREE, MLF-8
MIC2291	MICREL	获取价格	1.2A PWM Boost Regulator Photo Flash LED Driver
MIC2291	MICROCHIP	获取价格	The MIC2291 is a 1.2MHz pulse-width modulation (PWM), boost-switching regulator that is op

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