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FPF1203L_13 Datasheet, PDF (1/3 Pages) Fairchild Semiconductor – IntelliMAX™ Ultra-Small, Slew-Rate-Controlled Load Switch
January 2013
FPF1203 / FPF1203L / FPF1204 / FPF12045
IntelliMAX™ Ultra-Small, Slew-Rate-Controlled Load Switch
Features
 1.2 V to 5.5 V Input Voltage Operating Range
 Typical RON:
 45 mΩ at VIN=5.5 V
 55 mΩ at VIN=3.3 V
 90 mΩ at VIN=1.8 V
 185 mΩ at VIN=1.2 V
 Slew Rate Control with tR:
 FPF1203/FPF1203l/FPF1204: 100 µs
 FPF12045: 2 µs
 Output Discharge Function on FPF1204 / 45
 Low <1.5 µA Quiescent Current
 ESD Protected: Above 7 kV HBM, 2 kV CDM
 GPIO / CMOS-Compatible Enable Circuitry
 4-Bump, WLCSP 0.76 mm x 0.76 mm,
0.4 mm Pitch
Applications
 Mobile Devices and Smart Phones
 Portable Media Devices
 Tablet PCs
 Advanced Notebook, UMPC, MID
 Portable Medical Devices
 GPS and Navigation Equipment
Description
The FPF1203 / 03L / 04 / 45 are ultra-small integrated
IntelliMAX™ load switches with integrated P-channel
switch and analog control features. Integrated slew-
rate control prevents inrush current and the resulting
excessive voltage drop on the power rail. The input
voltage range operates from 1.2 V to 5.5 V to provide
power-disconnect capability for post-regulated power
rails in portable and consumer products. The low shut-
off current allows power designs to meet standby and
off-power drain specifications.
The FPF120x are controlled by a logic input (ON pin)
compatible with standard CMOS GPIO circuitry found
on Field Programmable Gate Array (FPGA) embedded
processors. The FPF120x are available in 0.76 mm x
0.76 mm 4-bump WLCSP.
Ordering Information
Part Number
Top
Mark
FPF1203UCX
QL
FPF1203LUCX
QP
FPF1204UCX
QM
FPF1204BUCX
(Backside Laminate)
QM
FPF12045UCX
NC
Switch
(Typical)
at 3.3VIN
55 mΩ
55 mΩ
55 mΩ
Output
Discharge
NA
NA
65Ω
ON Pin
Activity
Active HIGH
Active LOW
Active HIGH
55 mΩ
65Ω
Active HIGH
55 mΩ
65Ω
Active HIGH
tR
Package
100 µs
100 µs
100 µs
4-Bump, Wafer-Level Chip-Scale
Package (WLCSP), 0.76 mm x
100 µs 0.76 mm, 0.4 mm Pitch
2 µs
© 2011 Fairchild Semiconductor Corporation
FPF1203 / FPF1203L / FPF1204 / FPF12045 • Rev. 1.1.9
www.fairchildsemi.com