Datasheet > MIC2166

MIC2166

更新时间： 2023-12-06 20:11:25

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
28页	724K
描述
The MIC2166 is a synchronous adaptive on-time buck controller targeting high performance, cost s

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MIC2166 数据手册

MIC2166

Adaptive On-Time DC-DC Controller

Hyper Speed Control™ Family

General Description

Features

The Micrel MIC2166 is a synchronous adaptive on-time

buck controller targeting high-performance, cost-sensitive

applications such as set-top boxes, gateways, routers,

•

Hyper Speed Control™ architecture enables

High delta V operation (V_IN=28V and V_OUT=0.8V)

Small output capacitance

computing

equipment.

peripherals,

and

telecom/networking

•

Built-in 5V regulator for single-supply operation

Any Capacitor^TMstable

The MIC2166 operates over a supply range of 4.5V to

28V. It has an internal linear regulator which provides a

regulated 5V supply to power the internal control circuitry.

MIC2166 operates at a constant 600kHz switching

frequency and can be used to drive up to 25A of output

current. The output voltage is adjustable from 0.8V to

5.5V.

Zero ESR to high ESR

•

Power-Good (PGOOD) output

Input voltage range: 4.5V to 28V

5μA typical shutdown current

25A output current drive capability

Adjustable output from 0.8V to 5.5V with ±1% FB

accuracy

A unique Hyper Speed Control™ architecture enables

ultra-fast transient response while reducing the output

capacitance and also makes High V_IN/Low V_OUToperation

possible.

•

600kHz switching frequency

Internal 5ms digital soft-start

A UVLO feature is provided to ensure proper operation

under power-sag conditions to prevent the external power

MOSFET from over heating. Also, a soft-start feature is

provided to reduce the inrush current. Short current

sensing on the bottom MOSFET with hiccup mode current

limiting ensures protection in case of an output short

circuit. Further, the MIC2166 includes an EN pin to shut

down the converter and a Power-Good (PGOOD) pin to

allow simple sequencing.

Thermal-shutdown and hiccup current-limit protection

No external current-sense resistor required

Safe start-up into pre-biased loads

10-pin MSOP ePad package

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

Applications

•

Set-top box, gateways, routers and DSL modems

Printers, scanners, graphic and video cards

Servers, PCs and processor core supply

Low-Voltage Distributed Power

The MIC2166 is available in a 10 pin MSOP ePad package

with a junction operating temperature ranging from –40°C

to +125°C. All support documentation can be found on

Micrel’s web site at: www.micrel.com.

Typical Application

12V to 3.3V Efficiency

100

OUTPUT CURRENT (A)

MIC2166 Adjustable Output 600kHz Buck Converter

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Hyper Light Load and Any Capacitor are trademarks of Micrel, Inc.

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

M9999-092410-C

September 2010

12 3 4 5 6 7...28

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型号	品牌	描述	获取价格	数据表
MIC2166_1009	MICREL	Adaptive On-Time DC-DC Controller Hyper Speed Control? Family	获取价格
MIC2166YMME	MICREL	Adaptive On-Time DC-DC Controller	获取价格
MIC2166YMME	MICROCHIP	SWITCHING CONTROLLER, 750kHz SWITCHING FREQ-MAX, PDSO10	获取价格
MIC2166YMME-TR	MICROCHIP	SWITCHING CONTROLLER, 750kHz SWITCHING FREQ-MAX, PDSO10	获取价格
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MIC2168	MICROCHIP	The MIC2168 is a high-efficiency, simple to use 1MHz PWM synchronous buck control IC hou	获取价格

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