Datasheet > MIC94310-LYCS

MIC94310-LYCS

更新时间： 2024-11-08 00:59:23

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
15页	958K
描述
200mA LDO with Ripple Blockerâ¢ Technology

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MIC94310-LYCS 数据手册

MIC94310

200mA LDO with

Ripple Blocker™ Technology

General Description

Features

The MIC94310 Ripple Blocker™ is a monolithic integrated

circuit that provides low-frequency ripple attenuation

(switching noise rejection) to a regulated output voltage.

This is important for applications where a DC/DC switching

converter is required to lower or raise a battery voltage but

where switching noise cannot be tolerated by sensitive

downstream circuits such as in RF applications. The

MIC94310 maintains high power supply ripple rejection

(PSRR) with input voltages operating near the output

voltage level to improve overall system efficiency. A low-

voltage logic enable pin facilitates ON/OFF control at

typical GPIO voltage levels.

• 1.8V to 3.6V input voltage range

• Active noise rejection over a wide frequency band

− >50dB from 10Hz to 10MHz at 200mA load

• Rated to 200mA output current

• Fixed output voltages

• Current-limit and thermal-limit protected

• Ultra-small 0.88mm × 0.88mm 4-ball WLCSP

• 1.2mm × 1.6mm 4-pin Thin DFN

• 5-pin SOT-23

• Logic-controlled enable pin

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

The MIC94310 operates from an input voltage of 1.8V to

3.6V.

Applications

Packaged in a 0.88mm × 0.88mm 4-ball WLCSP, a 4-pin

1.2mm × 1.6mm Thin DFN, or a 5-pin SOT-23, the

MIC94310 has a junction operating temperature range of

–40°C to +125°C.

• Smartphones/Smart books

• Tablet PC/notebooks and webcams

• Digital still and video cameras

• Global positioning systems

• Mobile computing

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

• Automotive and industrial applications

Typical Application

PSRR C_OUT= 1µF

-20

-40

-60

I_OUT= 200mA

I_OUT= 100mA

-80

-100

V_IN= 2.5V + 40mVpp

_OUT= 1.8V

I_OUT= 10mA

-120

100

10K

100K

10M

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07

FREQUENCY (Hz)

Ripple Blocker 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

September 11, 2014 Revision 2.1

12 3 4 5 6 7...15

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