The Future of Analog IC Technology
MP62170-1/MP62171-1
3.3V/5V, Single-Channel 1.5A
Current-Limited Power Distribution Switch
with Output Discharge
DESCRIPTION
The MP62170-1/MP62171-1 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP62170-1/MP62171-1
analog switch has 75mΩ on-resistance and
operates from 2.7V to 5.5V input. It is available
with guaranteed current limits, making it ideal
for load switching applications. The MP62170-
1/MP62171-1 has built-in protection for both
over current and increased thermal stress. For
over current, the device will limit the current by
changing to a constant current mode.
As the temperature increases as a result of
short circuit, then the device will shut off. The
device will recover once the device temperature
reduces to approx 120°C.
MP62170-1/MP62171-1 involves discharge
function that provides a resistive discharge path
for the external output capacitor when the part
is disabled.
MP62170-1/MP62171-1 is available in 8-pin
MSOP and SOIC package without exposed pad.
TYPICAL APPLICATION
3.3V / 5V Input
FEATURES
• 1.5A Continuous Current
• Accurate Current Limit
• Output Discharge Function
• 2.7V to 5.5V Supply Range
• 90uA Quiescent Current
• 75mΩ MOSFET
• Thermal-Shutdown Protection
• Under-Voltage Lockout
• 8ms FLAG Deglitch Time
• No FLAG Glitch During Power Up
• Reverse Current Blocking
• Active High & Active Low Options
• SOIC8 & MSOP8 Packages
APPLICATIONS
• Smartphone and PDA
• Portable GPS Device
• Notebook PC
• Set-top-box
• Telecom and Network Systems
• PC Card Hot Swap
• USB Power Distribution
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
1 GND
MP62170-1/
MP62171-1 6, 7, 8
2, 3 IN
OUT
4 EN*
FLAG 5
To VBUS
USB Ports
* EN is active high for MP62171-1
SINGLE-CHANNEL
MP62170-1/MP62171-1 Rev.1.0
www.MonolithicPower.com
1
10/26/2010
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