Global Mixed-mode Technology Inc.
Power Distribution Switch
90mΩ High-Side MOSFET
Available with 4 Versions of Current Limits with
Operating Range:2.7V to 5.5V
400µS Typical Rise Time
Under voltage Lockout
65µA Quiescent Supply Current
1µA Maximum Shutdown Supply Current
Logic Level Enable Pin, Available with
Active-High or Active-Low Version
No Reverse Current when Power Off
Deglitched Open-Drain Over-Current Flag
Output ( OC )
With Output Shutdown Pull-low Resister
Nemko IEC 60950-1 CB/CCA_scheme certifica-
tion Report #67291
High-Side Power Protection Switch
USB Power Management
USB Host and Self-Powered Bubs
USB Bus-Powered Hubs
Hot Plug-In Power Supplies
The GMB51001 is an integrated 90mΩ pow er sw itch
for self-powered and bus-powered Universal Serial Bus
Several Protection features include current limiting w ith
foldback, and thermal shutdown to prevent catastrophic
switch failure caused by increasing pow er dissipation
when continuous heavy loads or short circuit occurs.
And a built-in charge pump is used to drive the
N-channel MOSFET that is free of parasitic body diode
to eliminate any reversed current flow across the switch
when it is powered off.
OC is open-drain output report over-current
over-temperature event and has typical 9ms deglitch
EN (EN) 4
*Pin#6 should be considered as OUT when circuit design
and PCB layout, but it is NC pin actually.
UL Recognized Component
Jul 06, 2009
pical Application Circuit
2.7V to 5.5V
*: 1µF of input capacitor is enough in most application cases.
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.