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MIC2546

Adjustable 1.5A Dual 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")
  • 100µA typical on-state supply current per channel
  • 2µA typical off-state supply current
  • 120mΩ maximum on-resistance
  • Open-drain fault flag
  • Thermal shutdown
  • Thermal shutdown output latch (MIC2547)
  • 2ms (slow) turn-on and fast turn-off
  • 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 MIC2546 and MIC2547 are integrated high-side dual power switches optimized for low loss dc power switching and other power management applications, including Advanced Configuration and Power Interface (ACPI). The MIC2546/47 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 theswitch and the attached device. The MIC2546/47's open-drain flag outputs are used to indicate current-limiting or thermal shutdown to a local controller. The MIC2547 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 asthe thermal shutdown latch reset for the MIC2547. The MIC2546 and MIC2547 are available in active-high and active-low enable versions in 16-pin TSSOP and SOP packages.

Additional Features
    • 2.7V to 5.5V input
    • Adjustable current-limit up to 1.5A
    • Reverse current flow blocking (no "body diode")
    • 100µA typical on-state supply current per channel
    • 2µA typical off-state supply current
    • 120mΩ maximum on-resistance
    • Open-drain fault flag
    • Thermal shutdown
    • Thermal shutdown output latch (MIC2547)
    • 2ms (slow) turn-on and fast turn-off
    • Available with active-high or active-low enable
    • UL recognized
Parametrics
Name
Value
Product Type
USB Power Dist
Type
Dual
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)
120, 100
Rev Block Diode
Yes
Thermal Shutdown
Yes
Fault Flag
Yes
UL Approved
Yes
Switch Element
N-Ch

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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
MIC2546-1YTS
0.065000
0.125000
16
TSSOP
4.4mm
Matte Tin
e3
MIC2546-1YTS-TR
0.065000
0.204000
16
TSSOP
4.4mm
Matte Tin
e3
MIC2546-2YTS
0.065000
0.125000
16
TSSOP
4.4mm
Matte Tin
e3
MIC2546-2YTS-TR
0.065000
0.204000
16
TSSOP
4.4mm
Matte Tin
e3
MIC2546-1YM
0.157400
0.300000
16
SOIC
.150in
Matte Tin
e3
MIC2546-1YM-TR
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
MIC2546-2YM
0.157400
0.300000
16
SOIC
.150in
Matte Tin
e3
MIC2546-2YM-TR
0.157400
0.307692
16
SOIC
.150in
Matte Tin
e3
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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