MIC2025/2075
Micrel, Inc.
MIC2025/2075
Single-Channel Power Distribution Switch MM8®
General Description
Features
The MIC2025 and MIC2075 are high-side MOSFET switches
optimized for general-purpose power distribution requiring
circuit protection.
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The MIC2025/75 are internally current limited and have
thermal shutdown that protects the device and load. The
MIC2075 offers “smart” thermal shutdown that reduces current consumption in fault modes. When a thermal shutdown
fault occurs, the output is latched off until the faulty load is
removed. Removing the load or toggling the enable input will
reset the device output.
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Both devices employ soft-start circuitry that minimizes inrush
current in applications where highly capacitive loads are employed. A fault status output flag is provided that is asserted
during overcurrent and thermal shutdown conditions.
The MIC2025/75 is available in the MM8® 8‑lead MSOP
and 8‑lead SOP.
140mΩ maximum on-resistance
2.7V to 5.5V operating range
500mA minimum continuous output current
Short-circuit protection with thermal shutdown
Fault status flag with 3ms filter eliminates false assertions
Undervoltage lockout
Reverse current flow blocking (no “body diode”)
Circuit breaker mode (MIC2075) reduces power
consumption
Logic-compatible input
Soft-start circuit
Low quiescent current
Pin-compatible with MIC2525
UL File # E179633
Applications
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USB peripherals
General purpose power switching
ACPI power distribution
Notebook PCs
PDAs
PC card hot swap
Typical Application
VCC
2.7V to 5.5V
10k
Logic Controller
VIN
1µF
MIC2025/75
ON/OFF
EN
OUT
FLG
IN
GND
OVERCURRENT
GND
OUT
NC
Load
NC
0.1µF
UL Recognized Component
MM8 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
June 2010
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MIC2025/2075
