Datasheet > MIC23451-AAAYFL-TR

MIC23451-AAAYFL-TR

更新时间： 2024-11-05 20:11:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		开关
页数	文件大小	规格书
20页	3170K
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SWITCHING REGULATOR

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MIC23451-AAAYFL-TR 技术参数

生命周期：	Active	包装说明：	HVSON, LCC26,.16SQ,20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	2 weeks
风险等级：	1.29	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	5.5 V
最小输入电压：	2.7 V	标称输入电压：	3.6 V
JESD-30 代码：	S-XQCC-N26	长度：	4 mm
功能数量：	1	端子数量：	26
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流：	2 A	最大输出电压：	3.3 V
最小输出电压：	1 V	封装主体材料：	UNSPECIFIED
封装代码：	HVSON	封装等效代码：	LCC26,.16SQ,20
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度：	0.9 mm	最大供电电流 (Isup)：	0.12 mA
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	3000 kHz	温度等级：	AUTOMOTIVE
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	宽度：	4 mm
Base Number Matches：	1

MIC23451-AAAYFL-TR 数据手册

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MIC23451

3MHz, 2A Triple Synchronous

Buck Regulator with

HyperLight Load^®and Power Good

General Description

Features

The MIC23451 is a high-efficiency, 3MHz, triple 2A,

synchronous buck regulator with HyperLight Load^®mode.

HyperLight Load provides very-high efficiency at light

loads and ultra-fast transient response, which is ideal 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 4mm x 4mm QFN package

saves board space and requires only five external

components for each channel.

• 2.7V to 5.5V input voltage

• Three independent 2A outputs

• Up to 93% peak efficiency

• 81% typical efficiency at 1mA

• Three independent power good indicators

• 24µA typical quiescent current (per channel)

• 3MHz PWM operation in continuous mode

• Ultra-fast transient response

• Low voltage output ripple

The MIC23451 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 that is less than

1mm height.

− 30mV_PPripple in HyperLight Load mode

− 5mV output voltage ripple in full PWM mode

• Fully integrated MOSFET switches

• 0.1µA shutdown current (per channel)

• Thermal-shutdown and current-limit protection

• Output voltage as low as 1V

The MIC23451 has a very-low quiescent current of 24µA

each channel and achieves as high as 81% efficiency at

1mA. At higher loads, the MIC23451 provides a constant

switching frequency around 3MHz while achieving peak

efficiencies up to 93%.

• 26-pin 4mm × 4mm QFN

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

The MIC23451 is available in a 26-pin 4mm x 4mm QFN

package with an operating junction temperature range

from –40°C to +125°C.

Applications

• Solid state drives (SSD)

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

• µC/µP, FPGA, and DSP power

• Test and measurement systems

• Set-top boxes and DTV

• High-performance servers

• Security/surveillance cameras

• 5V POL applications

Typical Application

HyperLight Load is a registered 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

Revision 1.2

November 5, 2013

12 3 4 5 6 7...20

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