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(Datasheet) FPF1039

Slew-Rate-Controlled Load Switch

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FPF1039 pdf
April 2015
FPF1039
Low On-Resistance, Slew-Rate-Controlled Load Switch
Features
1.2 V to 5.5 V Input Voltage Operating Range
Typical RON:
20 mΩ at VIN=5.5 V
21 mΩ at VIN=4.5 V
37 mΩ at VIN=1.8 V
75 mΩ at VIN=1.2 V
Slew Rate / Inrush Control with tR: 2.7 ms (Typical)
3.5 A Maximum Continuous Current Capability
Output Capacitor Discharge Function
Low <1 µA Shutdown Current
ESD Protected: Above 8 kV HBM, 1.5 kV CDM
GPIO / CMOS-Compatible Enable Circuitry
Applications
HDD, Storage, and Solid-State Memory Devices
Portable Media Devices, UMPC, Tablets, MIDs
Wireless LAN Cards and Modules
SLR Digital Cameras
Portable Medical Devices
GPS and Navigation Equipment
Industrial Handheld and Enterprise Equipment
Description
The FPF1039 advanced load-management switch target
applications requiring a highly integrated solution for
disconnecting loads powered from DC power rail (<6 V)
with stringent shutdown current targets and high load
capacitances (up to 200 µF). The FPF1039 consists of
slew-rate controlled low-impedance MOSFET switch
(21 typical) and other integrated analog features.
The slew-rate controlled turn-on characteristic prevents
inrush current and the resulting excessive voltage droop
on power rails.
This device has exceptionally low shutdown current
drain (<1 µA maximum) that facilitates compliance in
low standby power applications. The input voltage range
operates from 1.2 V to 5.5 V DC to support a wide range
of applications in consumer, optical, medical, storage,
portable, and industrial device power management.
Switch control is managed by a logic input (active HIGH)
capable of interfacing directly with low-voltage control
signal / GPIO with no external pull-up required. The
device is packaged in advanced fully “green1mm
x1.5 mm Wafer-Level Chip-Scale Packaging (WLCSP);
providing excellent thermal conductivity, small footprint,
and low electrical resistance for wider application usage.
Ordering Information
Part Number
Top
Mark
Switch
RON
(Typical)
at 4.5 VIN
FPF1039UCX QF
21
FPF1039BUCX QF
21
Input
Buffer
CMOS
CMOS
Output ON Pin
Discharge Activity
tR
Package
65Ω
Active HIGH
2.7 ms
6-Bump, WLCSP, 1.0 mm
x 1.5 mm, 0.5 mm Pitch
6-Bump, WLCSP with
65Ω
Active HIGH
2.7 ms
Backside Laminate,
1.0 mm x 1.5 mm,
0.5 mm Pitch
© 2010 Fairchild Semiconductor Corporation
FPF1039 • Rev. 1.5
www.fairchildsemi.com
Fairchild Semiconductor
Fairchild Semiconductor


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