19-1544; Rev 2; 09/07
USB Current-Limited Switch
in Pin-Compatible Package
The MAX1607 is a current-limited 60mΩ switch with
built-in fault blanking. Its accurate, preset 0.7A to 1.0A
current limit makes it ideal for USB applications. Its low
quiescent supply current (14µA) and standby current
(1µA) conserve battery power in portable applications.
The MAX1607 operates with inputs from +2.7V to
+5.5V, making it ideal for both 3V and 5V systems.
An overcurrent signal (OC) notifies the microprocessor
that the internal current limit has been reached. A 10ms
overcurrent-blanking feature allows momentary faults
(such as those caused when hot-swapping into a
capacitive load) to be ignored, thus preventing false
alarms to the host system. This blanking also prevents
signal from being issued when the device is
The MAX1607 has several safety features to ensure that
the USB port is protected. Built-in thermal-overload pro-
tection limits power dissipation and junction temperature.
The device also has accurate internal current-limiting
circuitry to protect the input supply against overload.
The MAX1607 is a pin-compatible upgrade to Texas
Instruments’ TPS2014, TPS2015, and TPS2041 for USB
applications. The same die is available in a space-sav-
ing 10-pin µMAX
package (MAX1693) and can be
used for next-generation designs. The MAX1694 is sim-
ilar to the MAX1693, but it has a built-in latch that turns
off the power switch in case of a long-term short-
The MAX1607 is also offered in a 10-pin TDFN package
(not pin compatible with Texas Instruments TPS2014,
TPS2015, and TPS2041 for USB applications).
SO Package is Pin Compatible with TPS2014,
TPS2015, and TPS2041
Accurate Current Limit (0.7A min, 1.0A max)
Guaranteed 0.75A Short-Circuit Protection
No Overcurrent (OC) Signal During Power-Up
125mΩ max High-Side MOSFET
500mA Continuous Current
Short-Circuit and Thermal Protection with
Overcurrent Logic Output
1ms Start-Up Time
14µA Quiescent Supply Current
1µA max Standby Supply Current
+2.7V to +5.5V Supply Range
UL Recognized #E211935
-40°C to +85°C
-40°C to +85°C
= Exposed paddle.
a lead-free package.
Typical Operating Circuit
+2.7V TO +5.5V
Pin Configurations continued at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.