Datasheet > MIC23060

MIC23060

更新时间： 2024-11-14 10:57:19

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
15页	733K
描述
Sequenced Power Management IC with HyperLight Load? DC/DC and Dual Input LDO?

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MIC23060 数据手册

MIC23060

Sequenced Power Management IC with

HyperLight Load™ DC/DC and

Dual Input LDO™

General Description

Features

The MIC23060 is a highly efficient power management IC

integrating a high frequency DC/DC converter with

HyperLight Load™ mode and a low input voltage capable

LDO. The MIC23060 offers two output voltages at very

high efficiency on both outputs while maintaining a low

total system cost.

• 2.7V to 5.5V supply voltage range

• Tiny 12-pin 2.5mm x 2.5mm Thin MLF^®package

• Integrated sequencing

– Dual Input LDO™ can turn-on prior to DC/DC

converter and automatically switch to post regulation

from the DC/DC converter after it starts

– Power for LDO from input during start-up

– Adjustable delay time between outputs

• Zero-current off mode

• Current-limit and thermal shutdown protection

HyperLight Load™ DC/DC Converter

• Up to 600mA output current in PWM mode (shared

between switcher and linear LDO regulator outputs)

• 4MHz frequency in continuous PWM mode

• Tiny 2.2µH inductor, 4.7µF capacitor

• 85% Efficiency at 1mA output current

• >90% peak efficiency

• Low output voltage ripple across all loads

LDO Regulator

• Low Input voltage LDO regulator

• Stable with ceramic output capacitors

• Regulates from the output of the DC/DC converter

• 300mA output current capability

• High Accuracy: ±3% over temperature

• High PSRR: greater than 60dB

The MIC23060 also provides sequencing of the two

outputs in every potential combination of turn-on and turn-

off sequencing by connecting two pins either high or low,

and using a single GPIO to enable and disable the device.

The LDO is designed both to post regulate from the output

of the DC/DC converter for high system efficiency, and/or

power directly from the battery. For sequences where the

LDO is enabled prior to the DC/DC output, the LDO is first

and then after the DCDC soft start is complete, seamlessly

transition LDO input power to draw from the output of the

DC/DC converter for higher efficiency operation through

post-regulation.

The DC/DC converter in the MIC23060 is a HyperLight

Load™ converter with very high efficiency at light load and

at full operating current, maintaining high efficiency across

all operating modes in portable electronics.

The MIC23060 is a µCap design, operating with small

ceramic output capacitors and tiny inductors for stability,

reducing required board space and component cost and is

available in the tiny 2.5mm x 2.5mm Thin MLF^®package.

• Very low quiescent current: 16µA

Data sheets and support documentation can be found on

Micrel’s web site at www.micrel.com.

Applications

• Mobile phones

• PDAs/pocket PCs

• Digital cameras/DSP power supply

_______________________________________________________________________________________________________________________________________

Typical Application

Sequence

ALL OFF

EN DC-DC ON 1^st/ OFF 1^st

LDO ON 1^st/ OFF 1^st

EN DC-DC ON 1^st/ OFF 2^nd

LDO ON 1^st/ OFF 2^nd

ALL ON

HyperLight Load and Dual Input LDO are trademarks of Micrel, Inc

MLF and MicroLead frame 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

M9999-042210-B

April 2010

12 3 4 5 6 7...15

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与MIC23060相关器件

型号	品牌	获取价格	描述	数据表
MIC23060-G4YMT	MICREL	获取价格	Sequenced Power Management IC with HyperLight Load? DC/DC and Dual Input LDO?
MIC23060-G4YMT-TR	MICROCHIP	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, DSO12
MIC23099	MICREL	获取价格	Single AA/AAA Cell Step-Up/Step-Down Regulators
MIC23099_14	MICREL	获取价格	Single AA/AAA Cell Step-Up/Step-Down Regulators with Battery Monitoring
MIC23099YFT	MICREL	获取价格	Single AA/AAA Cell Step-Up/Step-Down Regulators
MIC23099YFT-T5	MICROCHIP	获取价格	IC REG BCK BST ADJ DL SYNC 14QFN
MIC23099YFT-TR	MICROCHIP	获取价格	IC REG BCK BST ADJ DL SYNC 14QFN
MIC2310	MICREL	获取价格	Single-FET, Constant Power-Limit Hot Swap Controller
MIC2310_08	MICREL	获取价格	Single-FET, Constant Power-Limit Hot Swap Controller
MIC2310-1ZTS	MICREL	获取价格	Single-FET, Constant Power-Limit Hot Swap Controller

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