FPF1039 Datasheet, PDF (1/3 Pages) Fairchild Semiconductor – Low On-Resistance, Slew-Rate-Controlled Load Switch

September 2012
FPF1039
Low On-Resistance, Slew-Rate-Controlled Load Switch
Features
 1.2 V to 5.5 V Input Voltage Operating Range
 Typical R_ON:
− 20 mΩ at V_IN=5.5 V
− 21 mΩ at V_IN=4.5 V
− 37 mΩ at V_IN=1.8 V
− 75 mΩ at V_IN=1.2 V
 Slew Rate / Inrush Control with t_R: 2.7 ms (Typical)
 3 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 mΩ 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 “green” 1mm
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
R_ON
(Typical)
at 4.5 V_IN
FPF1039UCX QF
21mΩ
Input
Buffer
CMOS
Output ON Pin
Discharge Activity
t_R
Package
65Ω
Active HIGH
2.7 ms
6-Bump, WLCSP, 1.0 mm
x 1.5 mm, 0.5 mm Pitch
© 2010 Fairchild Semiconductor Corporation
FPF1039 • Rev. 1.0.5
www.fairchildsemi.com