FPF1048 Datasheet PDF
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April 2015
FPF1048
IntelliMAX3 A-Capable, Slew-Rate-Controlled Load Switch
with True Reverse Current Blocking
Features
Input Voltage Operating Range: 1.5 V to 5.5 V
Typical RDS(ON):
- 21 mat VIN=5.5 V
- 23 mat VIN=4.5 V
- 41 mat VIN=1.8 V
- 90 mat VIN=1.5 V
Slew Rate/Inrush Control with tR: 2.7 ms (Typ.)
3 A Maximum Continuous Current Capability
Low Off Switch Current: <1 µA
True Reverse Current Blocking (TRCB)
Logic CMOS IO Meets JESD76 Standard for GPIO
Interface and Related Power Supply Requirements
ESD Protected:
- Human Body Model: >8 kV
- Charged Device Model: >1.5 kV
- IEC 61000-4-2 Air Discharge: >15 kV
- IEC 61000-4-2 Contact Discharge: >8 kV
Applications
Smart Phones, Tablet PCs
Storage, DSLR, and Portable Devices
Description
The FPF1048 advanced load management switch
targets applications requiring a highly integrated
solution. It disconnects loads powered from the DC
power rail (<6 V) with stringent off-state current targets
and high load capacitances (up to 100 µF). The
FPF1048 consists of slew-rate controlled low-
impedance MOSFET switch (23 typical) and
integrated analog features. The slew-rate controlled
turn-on characteristic prevents inrush current and the
resulting excessive voltage droop on power rails.
The FPF1048 has a True Reverse Current Blocking
(TRCB) function that obstructs unwanted reverse
current from VOUT to VIN during both ON and OFF states.
The exceptionally low off-state current drain (<1µA
maximum) facilitates compliance with standby power
requirements. The input voltage range operates from
1.5 V to 5.5 VDC 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 /
General-Purpose Input / Output (GPIO) without an
external pull-down resistor.
The device is packaged in advanced, fully “green”
compliant, 1.0 mm x 1.5 mm, Wafer-Level Chip-Scale
Package (WLCSP) with backside lamination.
Ordering Information
Part Number
Top
Mark
FPF1048BUCX RA
Switch RON
(Typical)
at 4.5VIN
23 m
Input Output ON Pin
Buffer Discharge Activity
tR
CMOS
NA
Active
HIGH
2.7 ms
Package
6-Ball, WLCSP with
Backside Laminate, 2x3 Array,
0.5 mm Pitch, 300 µm Balls
© 2011 Fairchild Semiconductor Corporation
FPF1048 • Rev. 1.8
www.fairchildsemi.com


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