Datasheet > MIC2205_06

MIC2205_06

更新时间： 2024-11-05 07:17:03

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
16页	976K
描述
2MHz PWM Synchronous Buck Regulator with LDO Standby Mode

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MIC2205_06 数据手册

MIC2205

2MHz PWM Synchronous Buck

Regulator with LDO Standby Mode

General Description

Features

The Micrel MIC2205 is a high efficiency 2MHz PWM

synchronous buck (step-down) regulator that

features a LOWQ™ LDO standby mode that draws

only 18µA of quiescent current. The MIC2205

allows an ultra-low noise, small size, and high

efficiency solution for portable power applications.

• 2.7 to 5.5V supply voltage

• Light load LOWQ™ LDO mode

18µA quiescent current

Low noise, 75µVrms

• 2MHz PWM mode

Output current to 600mA

>95% efficiency

100% maximum duty cycle

In PWM mode, the MIC2205 operates with a

constant frequency 2MHz PWM control. Under light

load conditions, such as in system sleep or standby

modes, the PWM switching operation can be

disabled to reduce switching losses. In this light

load LOWQ™ mode, the LDO maintains the output

voltage and draws only 18µA of quiescent current.

The LDO mode of operation saves battery life while

not introducing spurious noise and high ripple as

experienced with pulse skipping or bursting mode

regulators.

• Adjustable output voltage option down to 1V

Fixed output voltage options available

• Ultra-fast transient response

• Stable with 1µF ceramic output capacitor

• Fully integrated MOSFET switches

• Micropower shutdown

• Thermal shutdown and current limit protection

• Pb-free 3mm x 3mm MLF-10L package

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

The MIC2205 operates from 2.7V to 5.5V input and

features internal power MOSFETs that can supply

up to 600mA output current in PWM mode. It can

operate with a maximum duty cycle of 100% for use

in low-dropout conditions.

Applications

The MIC2205 is available in the 3mm x 3mm MLF-

10L package with a junction operating range from

–40°C to +125°C.

• Cellular phones

• PDAs

• USB peripherals

Data sheets and support documentation can be

found on Micrel’s web site at www.micrel.com.

____________________________________________________________________________________________________

Typical Application

MIC2205

2.2µH

V_IN

V_OUT

VIN

2.7V to 5.5V

AVIN

LDO

100pF

1µF

100k

LOWQ

BIAS

LowQ

2.2µF

125k

0.1µF

PGND AGND

GND

Adjustable Output Buck Regulator with LOWQ™ Mode

LOWQ is a trademark 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

M9999-031105

www.micrel.com

March 2005

12 3 4 5 6 7...16

中文翻译

下载PDF

与MIC2205_06相关器件

型号	品牌	获取价格	描述	数据表
MIC2205-1.38YML	MICREL	获取价格	2MHz PWM Synchronous Buck Regulator with LDO Standby Mode
MIC2205-1.38YML	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, DSO10
MIC2205-1.38YMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, LEAD FREE, MLF-10
MIC2205-1.38YML-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10
MIC2205-1.3YML	MICREL	获取价格	2MHz PWM Synchronous Buck Regulator with LDO Standby Mode
MIC2205-1.3YML	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, DSO10
MIC2205-1.3YML-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10
MIC2205-1.58YML	MICREL	获取价格	2MHz PWM Synchronous Buck Regulator with LDO Standby Mode
MIC2205-1.58YMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, LEAD FREE, MLF-10
MIC2205-1.58YML-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10

与MIC2205_06相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

13
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

9
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

35
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

31

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2205_06

MIC2205_06 数据手册

与MIC2205_06相关器件

与MIC2205_06相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2205_06

MIC2205_06 数据手册

与MIC2205_06相关器件

与MIC2205_06相关文章

您还可以找

您在本页遇到什么问题？