MIC2025(2000) 查看數據表（PDF） - Micrel
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MIC2025 Datasheet PDF : 16 Pages
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MIC2025/2075
Micrel
MIC2025/2075
Single-Channel Power Distribution Switch
Preliminary Information
General Description
The MIC2025 and MIC2075 are high-side MOSFET switches
optimized for general-purpose power distribution requiring
circuit protection.
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 cur-
rent 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.
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 condi-
tions.
The MIC2025/75 is available in the MM8™ 8-lead MSOP and
8-lead SOP.
Features
• 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 asser-
tions
• 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
Applications
• USB peripherals
• General purpose power switching
• ACPI power distribution
• Notebook PCs
• PDAs
• PC card hot swap
Typical Application
10k
Logic Controller
VIN
ON/OFF
1µF OVERCURRENT
GND
VCC
2.7V to 5.5V
MIC2025/75
EN
FLG
GND
NC
OUT
IN
OUT
NC
Load
0.1µF
MM8 is a trademark of Micrel, Inc.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
March 2000
1
MIC2025/2075
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