Global Mixed-mode Technology Inc.
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5.0V
1A minimum continuous load current
3.0V to 5.5V operating range
100 碌A(chǔ) typical on-state supply current
1 碌A(chǔ) typical standby supply current
Output can be forced higher than input when
operating in off state.
1.4A Typical current limit
Thermal shutdown protection
2.4V typical under-voltage lockout (UVLO)
Open-drain fault flag pin
Slow turn-on (soft-start) and fast turnoff
Logic level enable pin, available with active-
high or active-low version
UL Approved_#E232223
General Description
The G525A is an integrated high-side power switch
optimized for self-powered and bus-powered Universal
Serial Bus (USB) applications.
The G525A satisfies the USB standards. The switch's
low on-resistance meets USB voltage drop require-
ments. When the output load exceeds current-limit
threshold, G525A switches into constant mode and
limit the output current to a safe level, which is typically
1.4A, well below the UL 25VA safety requirements. An
open-drain flag output is also available to indicate fault
conditions to the local USB controller. Soft start elimi-
nates the momentary voltage drop on the upstream port
that may occur when the switch is enabled in
bus-powered applications.
Besides, a thermal shutdown circuit is included to pre-
vent catastrophic switch failure caused by increasing
power dissipation when continuous heavy loads or
short circuit occurs. A under-voltage lockout (UVLO)
circuit ensures that the device remains off unless there
is a valid input voltage present, and an enable input
that is compatible with both 3.3V and 5V logic.
The G525A is a UL recognized component and is
available in active-high and active-low versions in 8-pin
SOP packages.
Applications
High-side power protection switch
USB power management
USB host and self-powered hubs
USB Bus-powered hubs
Hot plug-in power supplies
Battery-charger circuits
Ordering Information
PART
G525A1
G525A2
ENABLE
Active High
Active Low
TEMP. RANGE
-40擄C to
錛?5擄C
-40擄C to
錛?5擄C
PACKAGE
8-Pin SOP
8-Pin SOP
Pin Configuration
G525A
EN
FLG
GND
NC
1
2
3
4
8
7
6
5
OUT
IN
OUT
NC
3 (GND)
(EN)1
(FLG)2
Gate
Control
7 (IN)
G525A
6,8 (OUT)
8 Pin SOP
8 Pin Function Block
R
UL Recognized Component
Ver: 1.2
Nov 11, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
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