Datasheet > MIC23450

MIC23450

更新时间： 2024-09-20 12:31:15

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
22页	1325K
描述
3MHz, PWM, 2A Triple Buck Regulator with HyperLight LoadÂ® and Power Good

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MIC23450 数据手册

MIC23450

3MHz, PWM, 2A Triple Buck Regulator

with HyperLight Load^®and Power Good

General Description

Features

• Input voltage: 2.7V to 5.5V

• 3 independent 2A outputs

• Up to 93% peak efficiency

• 81% typical efficiency at 1mA

• Three independent Power Good Indicators

• 23µA typical quiescent current (per channel)

• 3MHz PWM operation in continuous mode

• Ultra-fast transient response

The MIC23450 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 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 5mm x 5mm MLF^®

package saves board space and requires only five external

components for each channel.

• Low voltage output ripple

− 30mVpp ripple in HyperLight Load mode

− 5mV output voltage ripple in full PWM mode

• Fully integrated MOSFET switches

• 0.01µA shutdown current (per channel)

• Thermal-shutdown and current-limit protection

• Output voltage as low as 1V

• 32-pin 5mm x 5mm MLF

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

The MIC23450 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

height.

The MIC23450 has a very-low quiescent current of 23µA

each channel and achieves as high as 81% efficiency at

1mA. At higher loads, the MIC23450 provides a constant

switching frequency around 3MHz while achieving peak

efficiencies up to 93%.

The MIC23450 is available in 32-pin 5mm x 5mm MLF

package with an operating junction temperature range

from –40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Applications

• Portable navigation devices (GPS)

• WiFi/WiMax/WiBro modules

• Digital Cameras

• Wireless LAN cards

• Portable applications

_________________________________________________________________________________________________________________________

Typical Application

HyperLight Load 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

M9999-120712-A

December 2012

12 3 4 5 6 7...22

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与MIC23450相关器件

型号	品牌	获取价格	描述	数据表
MIC23450-AAAYML	MICREL	获取价格	3MHz, PWM, 2A Triple Buck Regulator with Hype
MIC23451	MICREL	获取价格	3MHz, 2A Triple Synchronous Buck Regulator
MIC23451	MICROCHIP	获取价格	The MIC23451 is a high-efficiency, 3MHz, triple 2A, synchronous buck regulator with HyperL
MIC23451-AAAYFL	MICREL	获取价格	3MHz, 2A Triple Synchronous Buck Regulator
MIC23451-AAAYFL-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC-2353	ADVANTECH	获取价格	Half-size Celeron? M 600 CPU Module
MIC-2353F	ADVANTECH	获取价格	Half-size Celeron? M 600 CPU Module
MIC2358	MICREL	获取价格	IEEE 802.3af Octal Power Sourcing Equipment Controller
MIC2358_11	MICREL	获取价格	IEEE 802.3af Octal Power Sourcing Equipment Controller
MIC2358YLQ	MICREL	获取价格	IEEE 802.3af Octal Power Sourcing Equipment Controller

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