Datasheet > MIC23158

MIC23158

更新时间： 2024-09-19 12:03:59

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
20页	972K
描述
3MHz PWM Dual 2A Buck Regulator with HyperLight Load and Power Good

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MIC23158 数据手册

MIC23158/9

3MHz PWM Dual 2A Buck Regulator with

HyperLight Load^and Power Good

General Description

Features

The MIC23158/9 is a high-efficiency, 3MHz, dual, 2A

synchronous buck regulator with HyperLight Load^mode,

power good output indicator, and programmable soft start.

• 2.7V to 5.5V input voltage

• Adjustable output voltage (down to 1.0V)

• 2 independent 2A outputs

The MIC23159 also provides an auto discharge feature

that switches in a 225Ω pull down circuit on its output to

discharge the output capacitor when disabled. HyperLight

Load provides very high efficiency at light loads and ultra-

fast transient response which makes the MIC23158/9

perfectly suited for supplying processor core voltages. An

additional benefit of this proprietary architecture is very low

output ripple voltage throughout the entire load range with

the use of small output capacitors. The 20-pin 3mm x 4mm

MLF^®package saves precious board space and requires

seven external components for each channel.

• Up to 94% peak efficiency

• 83% typical efficiency at 1mA

• 2 independent power good indicators

• Independent programmable soft start

• 45µA typical quiescent current

• 3MHz PWM operation in continuous conduction mode

• Ultra-fast transient response

• Fully-integrated MOSFET switches

• Output pre-bias safe

The MIC23158/9 is designed for use with a very small

inductor, down to 0.47µH, and an output capacitor as small

as 2.2µF that enables a total solution size, less than 1mm

in height.

• 0.1µA shutdown current

• Thermal-shutdown and current-limit protection

• 20-pin 3mm x 4mm MLF package

• Internal 225Ω pull-down circuit on output (MIC23159)

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

The MIC23158/9 has a very low quiescent current of 45µA

and achieves a peak efficiency of 94% in continuous

conduction mode. In discontinuous conduction mode, the

MIC23158/9 can achieve 83% efficiency at 1mA.

Applications

The MIC23158/9 is available in a 20-pin 3mm x 4mm MLF

package with an operating junction temperature range

from –40°C to +125°C.

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Solid State Drives (SSD)

• Smart phones

• Tablet PCs

• Mobile handsets

• Portable devices (PMP, PND, UMPC, GPS)

• WiFi/WiMax/WiBro applications

_______________________________________________________________________________________________________

Typical Application

HyperLight Load is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks 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

M9999-110812-A

November 2012

12 3 4 5 6 7...20

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与MIC23158相关器件

型号	品牌	获取价格	描述	数据表
MIC23158_13	MICREL	获取价格	3MHz PWM Dual 2A Buck Regulator with HyperLight Load and Power Good
MIC23158YML	MICREL	获取价格	3MHz PWM Dual 2A Buck Regulator with HyperLight Load and Power Good
MIC23158YML-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC23159YML	MICREL	获取价格	3MHz PWM Dual 2A Buck Regulator with HyperLight Load and Power Good
MIC23159YML-T5	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC23163	MICREL	获取价格	4MHz, 2A, 100% Duty Cycle Buck Regulator with
MIC23163YMT	MICREL	获取价格	4MHz, 2A, 100% Duty Cycle Buck Regulator with
MIC23164	MICREL	获取价格	4MHz, 2A, 100% Duty Cycle Buck Regulator with
MIC23164YMT	MICREL	获取价格	4MHz, 2A, 100% Duty Cycle Buck Regulator with
MIC23201	MICROCHIP	获取价格	The MIC23201 is a high efficiency 2MHz 2A synchronous buck regulator with Hyper Speed Cont

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