uP7535
Dual-Input Triple-Output Power Multiplexer
in PSOP-8L for USB High Side Switch
General Description
The uP7535 is a current limited, dual-input triple-output
power multiplexer acting as a high side switch for USB
applications where heavy capacitive loads and short-circuits
are likely to be encountered. It switches output voltages to
5VSB at S3/S4/S5 states with 500mΩ switches and 400mA
capacity; to 5VCC at S0/S1/S2 states with 150mΩ
switches and 1.2A capacity. The outputs can be parallelled
to provide totally 3.0A output current at S0/S1/S2 states.
Optimal switch logic according to S3# and 5VCC status
ensures seamless output voltage transition.
When the output load exceeds the current-limit threshold
or a short is present, the uP7535 asserts over current
protection and limits the output current to a safe level by
driving the power switches into saturation mode.
Other features include soft-start to limit inrush current
during plug-in, thermal shutdown to prevent catastrophic
switch failure from high-current loads, under-voltage lockout
(UVLO) to ensure that the device remains off unless there
is a valid input voltage present. The uP7535 is available in
PSOP-8L package.
Compliant to USB Specifications
Operating Range: 4.5 V to 5.5 V
Output Voltage Switch to 5VSB at S3/S4/S5
400mA Continuous Load Current
500mΩ High Side Switch
Ω
Output Voltage Switch to 5VCC at S0/S1/S2
1.2A Continuous Load Current
150mΩ High Side Switch
Ω
Low Quiescent Current: 100uA Typical
Slow Turn On and Fast Turn Off
Enable Active-High
Pb-Free (RoHS Compliant)
UL Approved: E338429
TuV EN60950-1 Certification
Features
Ordering Information
Order Number
uP7535ASU8
uP7535BSU8
Package Type
PSOP-8L
PSOP-8L
Top Marking
uP7535S8
uP7535BS8
Applications
Notebook and Desktop PCs
USB Power Management
ACPI Power Distribution
Hot-Plug Power Supplies
Note :
uP7535ASU8 has EN pin.
uP7535BSU8 has no EN pin
Note: uPI products
are compatible with the current
IPC/
JEDEC J-STD-020
requirement.
They are halogen-free,
RoHS compliant and 100% matte tin (Sn) plating that are
suitable for use in SnPb or Pb-free soldering processes.
Pin Configuration & Typical Application Circuit
S3#
5VCC
5VCC
GND
1
2
3
4
9
GND
8
7
6
5
VOUT1
VOUT2
VOUT3
5VSB
S3#
5V
CC
1
S3#
VOUT1
8
VOUT2
7
VOUT3
6
5VSB
5
V
OUT1
V
OUT2
V
OUT3
5V
SB
2
EN
uP7535ASU8
S3#
EN
5VCC
GND
1
2
3
4
9
GND
8
7
6
5
VOUT1
VOUT2
VOUT3
5VSB
3
5VCC
4
GND
uP7535BSU8
uP7535BSU8
uPI Semiconductor Corp., http://www.upi-semi.com
Rev. P04, File Name: uP7535-DS-P0401
1
UNITPOWER [ Unitpower Technology Limited ]
