Datasheet > MIC3385

MIC3385

更新时间： 2023-12-06 20:03:46

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
15页	520K
描述
The MIC3385 is a high efficiency inductorless buck regulator that features a LowQ? LDO standby mod

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MIC3385 数据手册

MIC3385

8MHz Inductorless Buck Regulator

with LDO Standby Mode

General Description

The Micrel MIC3385 is a high-efficiency inductorless buck

regulator that features a LOWQ^®LDO standby mode that

draws only 18µA of quiescent current. The MIC3385

requires no external inductor enabling an ultra-low noise,

small size, and high efficiency solution for portable power

applications.

LOWQ^®

Features

• 2.7 to 5.5V supply voltage

• Light load LOWQ^®LDO mode

In PWM mode, the MIC3385 operates with a constant

frequency 8MHz 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.

–

18µA quiescent current

–

Low noise, 75µVrms

• 8MHz PWM mode

–

Output current to 600mA

>90% efficiency

100% maximum duty cycle

• Adjustable output voltage option down to 1V

• Ultra-fast transient response

• No external inductor required

• Enables sub 1mm profile solution

• Fully integrated MOSFET switches

• Micropower shutdown

• Thermal shutdown and current limit protection

• Pb-free 14-pin 3x3.5x0.9mm MLF^®package

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

The MIC3385 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.

The MIC3385 is available in the 14-pin 3mm x 3.5mm

MLF^®package with a junction operating range from –40°C

to +125°C.

Applications

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Slim digital cameras

• MP3 players

• Portable power applications

• Cellular phones

• PDAs

• USB peripherals

LOWQ is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, 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

Revision 3.0

September 22, 2015

12 3 4 5 6 7...15

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与MIC3385相关器件

型号	品牌	获取价格	描述	数据表
MIC3385_10	MICREL	获取价格	8MHz Inductorless Buck Regulator with LDO Standby Mode
MIC3385-1.5YHL	MICREL	获取价格	8MHz Inductorless Buck Regulator with LDO Standby Mode
MIC3385-1.5YHL-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 8800kHz SWITCHING FREQ-MAX, PDSO14
MIC3385YHL	MICREL	获取价格	8MHz Inductorless Buck Regulator with LDO Standby Mode
MIC3385YHL-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 8800kHz SWITCHING FREQ-MAX, PDSO14
MIC3385YML	MICREL	获取价格	8MHz Power System Module with LDO Standby Mode
MIC3385YMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 8800kHz SWITCHING FREQ-MAX, PDSO14, 3 X 3.50 MM, LEAD FREE, MLF-14
MIC-3392	ADVANTECH	获取价格	6U CompactPCI Intel? Core? 2 Duo Processor-based Board with Dual PCIe GbE/DDR2/SATA/PMC
MIC-3392A2-M1E	ADVANTECH	获取价格	6U CompactPCI Intel? Core? 2 Duo Processor-based Board with Dual PCIe GbE/DDR2/SATA/PMC
MIC-3392A2-M2E	ADVANTECH	获取价格	6U CompactPCI Intel? Core? 2 Duo Processor-based Board with Dual PCIe GbE/DDR2/SATA/PMC

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