X
X
R
R
P
P
2
2
5
5
2
2
3
3
1
1
.
.
5
5
A
A
S
S
i
i
n
n
g
g
l
l
e
e
C
C
h
h
a
a
n
n
n
n
e
e
l
l
U
U
S
S
B
B
3
3
.
.
0
0
P
P
o
o
w
w
e
e
r
r
D
D
i
i
s
s
t
t
r
r
i
i
b
b
u
u
t
t
i
i
o
o
n
n
S
S
w
w
i
i
t
t
c
c
h
h
October 2012
Rev. 1.0.0
Exar Corporation
www.exar.com
48720 Kato Road, Fremont CA 94538, USA
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
GENERAL DESCRIPTION
The Exar XRP2523 Evaluation board (EVB) is a
full assembled and tested surface-mount PCB
that demonstrates the XRP2523 single-channel
integrated
high-side
power
distribution
switches.
Optimized for USB V
BUS
power distribution, the
XRP2523 is compliant with the latest USB 3.0
specification and can be used in any self or
bus powered USB applications. It is provided
with an enable pin while an error flag is
available to indicate fault conditions.
XRP2523 is offered in a RoHS compliant
“green”/halogen free 5-pin SOT-23 package.
STANDARD CONFIGURATION
The
XRP7659EVB
evaluation
board
is
configured to operate under the following
conditions and parameters:
Input voltage range V
IN
:
3.2V – 6.5V
Output current/load range:
0 – 1.5A
E
E
V
V
A
A
L
L
U
U
A
A
T
T
I
I
O
O
N
N
B
B
O
O
A
A
R
R
D
D
M
M
A
A
N
N
U
U
A
A
L
L
FEATURES
1.5A Single Channel Current Switch
1.5A continuous load current
1.6A Over-current Limit
3.2V to 6.5V Input Voltage Range
USB 2.0 and USB 3.0 Compliant
Active High Enable
Soft Start
Channel Fault Flag Indicator
9ms Blanking Time
UVLO, Reverse Current, Short circuit
and Thermal Shutdown Protection
EVALUATION BOARD SCHEMATICS
Fig. 1: XRP2523 Evaluation Board Schematic
U1 XRP2523
FLG
3
EN
1
OUT
5
IN
4
GND
2
VIN = 3.2V - 6.5V
CLB2
DNP
R2
DNP
R4
DNP
R1
10k
CIN1
DNP
GND
CLA1
22uF
CIN2
1uF
ENB
U2
DNP
ENB
4
FLGA
2
ENA
1
OUTA
8
GND
6
IN
7
OUTB
5
FLGB
3
VOUTB
VLA
CLB1
DNP
VOUTA
VIN
ENA
VLB
R3
DNP
FLGA
CLA2
0.1uF
FLGB
