MP62340-1/MP62341-1
3.3V/5V, Dual-Channel 1A
Current-Limited Power Distribution Switches
with Output Discharge
MP62340-1/MP62341-1 Rev.0.9 www.MonolithicPower.com 1
11/2/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP62340-1/MP62341-1 Power Distribution
Switch features internal current limiting to
prevent damage to host devices due to faulty
load conditions. The MP62340-1/MP62341-1
analog switch has 85m 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 MP62340-
1/MP62341-1 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.
The MP62340-1/MP62341-1 involves discharge
function that provides a resistive discharge path
for the external output capacitor when the part
is disabled.
The MP62340-1/MP62341-1 is available in 8-
pin MSOP package with exposed pad and
SOIC package without exposed pad.
FEATURES
• 1A Continuous Current
• Accurate Current Limit
• Output Discharge Function
• 2.7V to 5.5V Supply Range
• 140
µA Quiescent Current
• 85m 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
APPLICATIONS
• PDAs
• Portable GPS
• 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.
TYPICAL APPLICATION
OUT2
MP62340-1/
MP62341-1
OUT1
1
2
3
4
5
6
7
8
+5V
To USB Controller
Output 1
Output 2
FLAG1
FLAG2
EN1*
IN
GND
EN2*
* EN is active high for MP62341-1