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MIC94355-SYMT-TR: 产品描述LDO Voltage Regulators 500mA Fixed LDO w/ Ripple Blocker; 产品类别半导体电源管理; 文件大小492KB，共17页; 制造商Microchip(微芯科技); 官网地址https://www.microchip.com

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MIC94355-SYMT-TR概述

LDO Voltage Regulators 500mA Fixed LDO w/ Ripple Blocker

MIC94355-SYMT-TR规格参数

参数名称	属性值
产品种类 Product Category	LDO Voltage Regulators
制造商 Manufacturer	Microchip(微芯科技)
RoHS	Details
安装风格 Mounting Style	SMD/SMT
封装 / 箱体 Package / Case	DFN-6
Output Voltage	3.3 V
Output Current	500 mA
Number of Outputs	1 Output
Input Voltage MAX	3.6 V
Input Voltage MIN	1.8 V
输出类型 Output Type	Fixed
最小工作温度 Minimum Operating Temperature	- 40 C
最大工作温度 Maximum Operating Temperature	+ 125 C
Load Regulation	10 mV
系列 Packaging	Reel
Dropout Voltage - Max	200 mV
Line Regulation	1 %
PSRR / Ripple Rejection - Typ	85 dB
Reference Voltage	1.1 V
工厂包装数量 Factory Pack Quantity	5000
Voltage Regulation Accuracy	3 %
单位重量 Unit Weight	0.000744 oz

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MIC94325/45/55

500mA LDO with

Ripple Blocker Technology

General Description

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.

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.

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.

Features



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

 40C

to +125C junction temperature range

Applications



Smart phones



Tablet PC/notebooks and webcams



Digital still and video cameras



Global positioning systems



Mobile computing



Automotive and industrial applications

_________________________________________________________________________________________________

MIC94355 PSRR

OUT

= 4.7µF

= 2.8V + 40mVpp

-20

-40

-60

-80

10mA

OUT

= 1.8V

OUT

= 4.7µF

Typical Application

PSRR (dB)

500mA

-100

-120

100

1,000

200mA

10,000 100,00 1,000,0 10,000,

10K

100K

10M

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

October 2012

M9999-102512-A

MIC94355-SYMT-TR相似产品对比

	MIC94355-SYMT-TR	MIC94345-FYCS-T5	MIC94355-4YMT-T5	MIC94345-SYCS-T5	MIC94355-OYMT-T5
描述	LDO Voltage Regulators 500mA Fixed LDO w/ Ripple Blocker	LDO Voltage Regulators 500mA Fixed LDO w/ Ripple Blocker	Thick Film Resistors - SMD 10K OHM 1%		LDO Voltage Regulators 500mA Fixed Output LDO
产品种类 Product Category	LDO Voltage Regulators	LDO Voltage Regulators	-	LDO Voltage Regulators	LDO Voltage Regulators
制造商 Manufacturer	Microchip(微芯科技)	Microchip(微芯科技)	-	Microchip(微芯科技)	Microchip(微芯科技)
RoHS	Details	Details	-	Details	Details
安装风格 Mounting Style	SMD/SMT	SMD/SMT	-	SMD/SMT	SMD/SMT
封装 / 箱体 Package / Case	DFN-6	CSP-6	-	CSP-6	DFN-6
Output Voltage	3.3 V	1.5 V	-	3.3 V	1.2 V to 3.4 V
Output Current	500 mA	500 mA	-	500 mA	500 mA
Number of Outputs	1 Output	1 Output	-	1 Output	1 Output
Input Voltage MAX	3.6 V	3.6 V	-	3.6 V	3.6 V
Input Voltage MIN	1.8 V	1.8 V	-	1.8 V	1.8 V
输出类型 Output Type	Fixed	Fixed	-	Fixed	Adjustable
最小工作温度 Minimum Operating Temperature	- 40 C	- 40 C	-	- 40 C	- 40 C
最大工作温度 Maximum Operating Temperature	+ 125 C	+ 125 C	-	+ 125 C	+ 125 C
Load Regulation	10 mV	10 mV	-	10 mV	10 mV
系列 Packaging	Reel	Reel	-	Reel	Cut Tape
Dropout Voltage - Max	200 mV	200 mV	-	200 mV	100 mV
Line Regulation	1 %	1 %	-	1 %	0.1 %
PSRR / Ripple Rejection - Typ	85 dB	85 dB	-	85 dB	60 dB
Reference Voltage	1.1 V	1.1 V	-	1.1 V	-
工厂包装数量 Factory Pack Quantity	5000	500	-	500	500
Voltage Regulation Accuracy	3 %	3 %	-	3 %	-
单位重量 Unit Weight	0.000744 oz	0.002116 oz	-	0.002116 oz	0.000744 oz

MIC94355-SYMT-TR

MIC94355-SYMT-TR在线购买

MIC94355-SYMT-TR概述

MIC94355-SYMT-TR规格参数

文档预览

MIC94355-SYMT-TR相似产品对比

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