Datasheet > MIC2186

MIC2186

更新时间： 2024-11-12 14:51:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
15页	189K
描述
MIC2186 is a high efficiency boost PWM control IC. With its wide input voltage range of 2.9V t

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MIC2186 数据手册

MIC2186

Micrel, Inc.

MIC2186

Low Voltage PWM Control IC

General Description

Features

Micrel’s MIC2186 is a high efficiency boost PWM control IC.

With its wide input voltage range of 2.9V to 14V, the MIC2186

can be used to efficiently boost voltages in 1- or 2-cell Li Ion

battery powered applications, as well as to boost voltages in

fixed 3.3V, 5V, or 12V systems. Its powerful 1.6Ω output

driverallowstheMIC2186tosupplylargeoutputcurrentswith

the selection of proper external MOSFETs.

• Input voltage range: 2.9V to 14V

• 1.6Ω output driver

• Oscillator frequency of 100kHz/200kHz/400kHz

• Frequency sync to 600kHz

• Front edge blanking

• PWM Current Mode Control

• Selectable light load SKIP mode

• 600µA quiescent current (SKIP-Mode)

• 0.5µA shutdown current

The MIC2186 can be configured to operate at 100kHz,

200kHz, or 400kHz. With it’s fixed frequency PWM architec-

ture, and easily synchronized drive, the MIC2186 is ideal for

noise-sensitive telecommunications applications.

• Cycle-by-Cycle current limiting

• Frequency foldback protection

• Adjustable under-voltage lockout

• Precision 1.245V reference output

• 16 pin SOIC and QSOP package options

• Selectable 50% maximum duty cycle for flyback applica-

tions

MIC2186 also features a low current shutdown mode of

0.5µA and programmable undervoltage lockout. A manually

selectable SKIP Mode allows high efficiencies in light load

situations.

TheMIC2186isavailablein16pinSOICandQSOPpackage

Applications

options with an operating range from –40°C to 125°C.

• DC power distribution systems

• Wireless Modems

• ADSL line cards

• SLIC power supplies

• 1-and 2-cell Li Ion battery operated equipment

Ordering Information

Part Number

Ambient

Standard

Pb-Free

MIC2186YM

MIC2186YQS

Frequency (kHz)

100 / 200 / 400

Voltage

Adj

Temp. Range

–40°C to +125°C

Package

16-lead SOP

16-lead QSOP

MIC2186BM

MIC2186BQS

Typical Application

MBR2535CT

2.2µH

V_IN= 3.3V

V_OUT= 12V

C_IN

120µF

20V

VINA

EN/UVLO

HIDC

FREQ/2

VDD

COMP

VREF

SKIP

12V Output Efficiency

C_OUT

VINP

150µF(x2)

20V

MIC2186

Si4404DY

(x2)

OUTN

CSH

4.5mΩ

SYNC

PGND

SGND

V_IN= 3.3V

0.5

1.5

2.5

OUTPUT CURRENT (A)

Adjustable Output Boost Converter

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-042205

April 2005

12 3 4 5 6 7...15

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与MIC2186相关器件

型号	品牌	获取价格	描述	数据表
MIC2186_05	MICREL	获取价格	Low Voltage PWM Control IC
MIC2186BM	MICREL	获取价格	Low Voltage PWM Control IC
MIC2186BQS	MICREL	获取价格	Low Voltage PWM Control IC
MIC2186BQS	MICROCHIP	获取价格	Switching Controller, Current-mode, 0.0005A, 440kHz Switching Freq-Max, BICMOS, PDSO16, QS
MIC2186YM-TR	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16
MIC2186YQS	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16
MIC2186YQSTR	MICREL	获取价格	暂无描述
MIC2186YQS-TR	MICROCHIP	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16
MIC2193	MICREL	获取价格	400KHZ SO 8 SYNCHRONOUS BUCK CONTROL IC
MIC2193	MICROCHIP	获取价格	MIC2193 is a high efficiency, PWM synchronous buck control IC housed in the SO-8 package

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