Datasheet > MIC2548

MIC2548

更新时间： 2024-11-10 14:52:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
28页	2750K
描述
The MIC2544 and MIC2548 are integrated, high-side power switches optimized for low loss DC power s

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MIC2548 数据手册

MIC2544/48

Programmable Current-Limit High-Side Switch

Features

General Description

• 2.7V to 5.5V Input

The MIC2544 and MIC2548 are integrated, high-side

power switches optimized for low-loss DC power

switching and other power management applications,

including Advanced Configuration and Power Interface

(ACPI). The MIC2544/48 are cost-effective, highly

integrated solutions that require few external

components to satisfy USB and ACPI requirements.

• Adjustable Current-Limit up to 1.5A

• Reverse Current Flow Blocking (No “Body Diode”)

• 75 μA Typical On-State Supply Current

• 1 μA Typical Off-State Supply Current

• 120 mΩ Maximum On-Resistance

• Open-Drain Fault Flag

Load current management features include a precision

• Thermal Shutdown

resistor-programmable output current-limit and

soft-start circuit that minimizes inrush current when the

switch is enabled. Thermal shutdown, along with

current-limit, protects the switch and the attached

device.

• Thermal Shutdown Output Latch (MIC2548)

• 2 ms (Slow) Turn-On and Fast Turn-Off

• Available with Active-High or Active-Low Enable

Applications

The MIC2544/48’s open-drain flag output is used to

indicate current-limiting or thermal shutdown to a local

controller. The MIC2548 has an additional internal latch

that turns the output off upon thermal shutdown,

providing robust fault control. The enable signal is

compatible with both 3V and 5V logic, and is also used

as the thermal shutdown latch reset for the MIC2548.

• USB Power Distribution

• PCI Bus Power Switching

• Notebook PC

• ACPI Power Distribution

• PC Card Hot Swap Applications

• Inrush Current-Limiting

The MIC2544 and MIC2548 are available in active-high

and active-low enable versions in the 8-lead SOIC and

8-lead MSOP packages.

Package Types

MIC2544/MIC2548

8-LEAD SOIC (M)

8-LEAD MSOP (MM)

FLG

GND

ILIM

OUT

FLG

GND

OUT

ILIM

 2017 - 2022 Microchip Technology Inc.

DS20005725C-page 1

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与MIC2548相关器件

型号	品牌	获取价格	描述	数据表
MIC2548-1BM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2548-1BMM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2548-1BMMTR	MICROCHIP	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.1A, CMOS, PDSO8, MSOP-8
MIC2548-1YM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2548-1YM	MICROCHIP	获取价格	0.1A BUF OR INV BASED PRPHL DRVR, PDSO8
MIC2548-1YMM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2548-1YMMTR	MICROCHIP	获取价格	0.1A BUF OR INV BASED PRPHL DRVR, PDSO8, LEAD FREE, MSOP-8
MIC2548-1YMTR	MICROCHIP	获取价格	0.1A BUF OR INV BASED PRPHL DRVR, PDSO8, LEAD FREE, SOP-8
MIC2548-1YM-TR	MICROCHIP	获取价格	0.1A BUF OR INV BASED PRPHL DRVR, PDSO8
MIC2548-2BM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information

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