Datasheet > MIC94355-SYMT

MIC94355-SYMT

更新时间： 2024-11-26 00:44:55

品牌	Logo	应用领域
麦瑞 - MICREL		光电二极管输出元件调节器
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

获取价格

数据手册

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MIC94355-SYMT 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MIC94355-SYMT相关器件

型号	品牌	获取价格	描述	数据表
MIC94355-SYMT-TR	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC95410	MICREL	获取价格	6.6mÎ© RDS(ON), 7A, 5.5V VIN Load Switch in 1
MIC95410	MICROCHIP	获取价格	The MIC95410 is a high-side load switch for computing and ultra-dense embedded computing b
MIC95410YFL	MICREL	获取价格	6.6mÎ© RDS(ON), 7A, 5.5V VIN Load Switch in 1
MIC95410YFL-T5	MICROCHIP	获取价格	IC LOAD SWITCH 6.6MOHMS 7A 10QFN
MIC95410YFL-TR	MICROCHIP	获取价格	IC LOAD SWITCH 6.6MOHMS 7A 10QFN
MICA	LUMBERG	获取价格	Micromodul?-Steckverbinder, Raster 1,27 mm
MICA_13	LUMBERG	获取价格	Micro modul-Steckverbinder fur indirektes Stecken, in Schneid klemm technik (SKT), mit Ver
MICA04	LUMBERG	获取价格	Micro modul-Steckverbinder fur indirektes Stecken, in Schneid klemm technik (SKT), mit Ver
MICA04AVP3	LUMBERG	获取价格	Micromodul connectors, pitch 1.27 mm

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