Datasheet > MIC94345-GYCS

MIC94345-GYCS

更新时间： 2024-09-18 00:45:23

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
16页	533K
描述
500mA LDO with Ripple Blockerï¤ Technology

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中文翻译

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数据手册

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MIC94345-GYCS 数据手册

MIC94325/45/55

500mA LDO with

Ripple Blocker Technology

General Description

Features

The MIC943x5 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

MIC943x5 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 5MHz at 500mA load

 Rated to 500mA output current

 Fixed and adjustable output voltages

 Optional output auto-discharge when disabled

 Current-limit and thermal-limit protected

 Ultra-small 0.84mm x 1.32mm 6-ball CSP

 1.6mm x 1.6mm, 6-pin Thin DFN

 Logic-controlled enable pin

The MIC943x5 operates from an input voltage of 1.8V to

3.6V. The MIC943x5 options include fixed (MIC94345/55)

or adjustable (MIC94325) output voltages. The MIC94355

version offers an auto-discharge to discharge the output

capacitor when the part is disabled.

 40C to +125C junction temperature range

Applications

 Smart phones

Packaged in a 0.84mm x 1.32mm 6-ball CSP or a 6-pin

1.6mm x 1.6mm Thin DFN, the MIC943x5 has a junction

operating temperature range of –40C to +125C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

 Tablet PC/notebooks and webcams

 Digital still and video cameras

 Global positioning systems

 Mobile computing

 Automotive and industrial applications

_________________________________________________________________________________________________

Typical Application

MIC94355 PSRR

C_OUT= 4.7µF

V_IN= 2.8V + 40mVpp

-20

-40

_OUT= 1.8V

_OUT= 4.7µF

500mA

-60

10mA

-80

-100

-120

200mA

100

1,10K00 101,00K00 1010,00K0 1,010M0,0 1100,0M00,

000

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

M9999-102512-A

October 2012

12 3 4 5 6 7...16

中文翻译

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与MIC94345-GYCS相关器件

型号	品牌	获取价格	描述	数据表
MIC94345-GYCSTR	MICROCHIP	获取价格	Regulator, 1 Output, 1.8V1, CMOS, PBGA6
MIC94345-GYMT	MICREL	获取价格	500mA LDO with Ripple Blockerï¤ Technology
MIC94345-GYMT-T5	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC94345-GYMT-TR	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC94345-MYCS	MICREL	获取价格	500mA LDO with Ripple Blockerï¤ Technology
MIC94345-MYMT	MICREL	获取价格	500mA LDO with Ripple Blockerï¤ Technology
MIC94345-MYMT-T5	MICROCHIP	获取价格	Fixed Positive LDO Regulator
MIC94345-MYMT-TR	MICROCHIP	获取价格	Fixed Positive LDO Regulator
MIC94345-SYCS	MICREL	获取价格	500mA LDO with Ripple Blockerï¤ Technology
MIC94345-SYCSTR	MICROCHIP	获取价格	Regulator, 1 Output, 3.3V1, CMOS, PBGA6

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