MIC2026-2YMTR Datasheet, PDF (1/16 Pages) Micrel Semiconductor – Dual-Channel Power Distribution Switch

MIC2026/2076
Dual-Channel Power Distribution Switch
General Description
Features
The MIC2026 and MIC2076 are high-side MOSFET
switches optimized for general-purpose power distribution
requiring circuit protection.
The MIC2026/76 are internally current limited and have
thermal shutdown that protects the device and load.
The MIC2076 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.
• 140mΩ maximum on-resistance per channel
• 2.7V to 5.5V operating range
• 500mA minimum continuous current per channel
• Shortcircuit protection with thermal shutdown
• Thermally isolated channels
• Fault status flag with 3ms filter eliminates false
assertions
• Undervoltage lockout
• Reverse current flow blocking (no “body diode”)
Both devices employ soft-start circuitry that minimizes
inrush current in applications where highly capacitive loads
are employed.
A fault status output flag is asserted during overcurrent
and thermal shutdown conditions. Transient faults are
internally filtered.
The MIC2026/76 are available in 8-pin DIP or 8-pin SOIC.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
• Circuit breaker mode (MIC2076)
• Logic-compatible inputs
• Soft-start circuit
• Low quiescent current
• Pin compatible with MIC2526
• UL File # E179633
Applications
• USB peripherals
• General purpose power switching
• ACPI power distribution
• Notebook PCs
• PDAs
• PC card hot swap
___________________________________________________________________________________________________________
Typical Application
V_CONT.
10k
10k
Logic Controller
VIN
ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
V_CC
2.7V to 5.5V
MIC2026-2
ENA OUTA
FLGAI
N
FLGB GND
ENB OUTB
Load
0.1µF
Load
UL Recognized Component
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
June 2010
M9999-060410-B