MIC2025/2075 Micrel, Inc.
MIC2025/2075
Single-Channel Power Distribution Switch MM8
General Description Features
The MIC2025 and MIC2075 are high-side MOSFET switches 140m maximum on-resistance
optimized for general-purpose power distribution requiring 2.7V to 5.5V operating range
circuit protection. 500mA minimum continuous output current
Short-circuit protection with thermal shutdown
The MIC2025/75 are internally current limited and have
Fault status flag with 3ms filter eliminates false asser -
thermal shutdown that protects the device and load. The
tions
MIC2075 offers smart thermal shutdown that reduces cur-
Undervoltage lockout
rent consumption in fault modes. When a thermal shutdown
Reverse current flow blocking (no body diode)
fault occurs, the output is latched off until the faulty load is
Circuit breaker mode (MIC2075) reduces power
removed. Removing the load or toggling the enable input will
consumption
reset the device output.
Logic-compatible input
Both devices employ soft-start circuitry that minimizes inrush
Soft-start circuit
current in applications where highly capacitive loads are em-
Low quiescent current
ployed. A fault status output flag is provided that is asserted
Pin-compatible with MIC2525
during overcurrent and thermal shutdown conditions.
UL File # E179633
The MIC2025/75 is available in the MM8 8-lead MSOP
and 8-lead SOP.
Applications
USB peripherals
General purpose power switching
ACPI power distribution
Notebook PCs
PDAs
PC card hot swap
Typical Application
V
CC
2.7V to 5.5V
10k
Logic Controller MIC2025/75
VIN
ON/OFF EN OUT Load
OVERCURRENT FLG IN
1F
GND
GND OUT
NC NC
0.1F
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 MIC2025/2075 Micrel, Inc.
Ordering Information
Part Number Enable Temperature Range Package
Standard Pb-Free
MIC2025-1BM MIC2025-1YM Active High -40C to +85C 8-Lead SOIC
MIC2025-2BM MIC2025-2YM Active Low -40C to +85C 8-Lead SOIC
MIC2025-1BMM MIC2025-1YMM Active High -40C to +85C 8-Pin MSOP
MIC2025-2BMM MIC2025-2YMM Active Low -40C to +85C 8-Pin MSOP
MIC2075-1BM MIC2075-1YM Active High -40C to +85C 8-Lead SOIC
MIC2075-2BM MIC2075-2YM Active Low -40C to +85C 8-Lead SOIC
MIC2075-1BMM MIC2075-1YMM Active High -40C to +85C 8-Pin MSOP
MIC2075-2BMM MIC2075-2YMM Active Low -40C to +85C 8-Pin MSOP
Pin Configuration
MIC2025/75
EN 1 8 OUT
FLG 2 7 IN
GND 3 6 OUT
NC 4 5 NC
8-Lead SOIC (BM)
8-Lead MSOP (BMM)
Pin Description
Pin Number Pin Name Pin Function
1 EN Switch Enable (Input): Active-high (-1) or active-low (-2).
2 FLG Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent or
thermal shutdown conditions. Overcurrent condition must exceed t in order
D
to assert FLG.
3 GND Ground
4 NC not internally connected
5 NC not internally connected
6, 8 OUT Supply (Output): Pins must be connected together.
7 IN Supply Voltage (Input).
MIC2025/2075 2 June 2010