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MIC2548

Adjustable 1.5A Single High-Side Current Limit Power Switch

Status: In Production

Features:

  • 2.7V to 5.5V input
  • Adjustable current-limit up to 1.5A
  • Reverse current flow blocking (no "body diode")
  • 75µA typical on-state supply current
  • 1µA typical off-state supply current
  • 120mΩ maximum on-resistance
  • Open-drain fault flag
  • Thermal shutdown
  • Thermal shutdown output latch (MIC2548)
  • 2ms (slow) turn-on and fast turnoff
  • Available with active-high or active-low enable
  • UL recognized
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

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 is a cost-effective, highly integrated solution that requires few external components to satisfy USB and ACPI requirements. Load current management features include a precision resistor-programmable output current-limit and a soft-start circuit which minimizes inrush current when the switch is enabled. Thermal shutdown, along with current-limit, protects the switch and the attached device. 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 which 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. The MIC2544 and MIC2548 are available in active-high and active-low enable versions in the 8-pin SOIC (small-outline integrated circuit) and 8-pin MSOP (microsmall- outline package).

Additional Features
    • 2.7V to 5.5V input
    • Adjustable current-limit up to 1.5A
    • Reverse current flow blocking (no "body diode")
    • 75µA typical on-state supply current
    • 1µA typical off-state supply current
    • 120mΩ maximum on-resistance
    • Open-drain fault flag
    • Thermal shutdown
    • Thermal shutdown output latch (MIC2548)
    • 2ms (slow) turn-on and fast turnoff
    • Available with active-high or active-low enable
    • UL recognized
Parametrics
Name
Value
Product Type
USB Power Dist
Type
Single
Vin Min (V)
2.7
Vin Max (V)
5.5
Adj Current Limit
Yes
Current Limit Adj# (Max)
1.5A
Current Limited
Yes
RDS ON @5V (mΩ)
80
Enable Logic
Active High
Θja (C/W)
160, 206
Rev Block Diode
Yes
Thermal Shutdown
Latched
Fault Flag
Yes
UL Approved
Yes
Switch Element
N-Ch

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MIC2548A-1YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548-2YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548-2YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548A-2YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548-1YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548-1YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548-1YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2548A-1YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC2548A-1YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2548A-2YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2548-1YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC2548A-2YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC2548-2YMM-TR
0.025100
0.334700
8
MSOP
3x3mm
NiPdAu
e4
MIC2548-2YMM
0.025100
0.124600
8
MSOP
3x3mm
NiPdAu
e4
MIC2548A-2YM
0.075000
0.163265
8
SOIC
3.90mm(.150in)
NiPdAu
e4
MIC2548A-1YM-TR
0.075000
0.250000
8
SOIC
3.90mm(.150in)
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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