FPF1004 Fairchild Semiconductor, FPF1004 Datasheet - Page 7

• Manufacturer Part Number: FPF1004
• Description: IC LOAD SWITCH ADV P-CHAN 6WLCSP
• Manufacturer: Fairchild Semiconductor
• Series: IntelliMax™r
• Type: High Side Switchr

Specifications of FPF1004

• Number Of Outputs: 1
• Rds (on): 30 mOhm
• Internal Switch(s): Yes
• Current Limit: 2.0A
• Voltage - Input: 1.2 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-WLCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FPF1004TR

FPF1003-FPF1004 Rev. H
Description of Operation
The FPF1003 & FPF1004 are low R
switches with controlled turn-on. The core of each device is a
30mΩ P-Channel MOSFET and a controller capable of
functioning over a wide input operating range of 1.2-5.5V.
Switch control is by a logic input (ON) capable of interfacing
directly with low voltage control signal. In FPF1004, 120Ω
on-chip load resistor is added for output quick discharge when
switch is turned off.
Application Information
Typical Application
Input Capacitor
To limit the voltage drop on the input supply caused by transient
in-rush currents when the switch turns-on into a discharged load
capacitor or short-circuit, a capacitor needs to be placed
between V
close to the pins is usually sufficient. Higher values of C
be used to further reduce the voltage drop.
Output Capacitor
A 0.1µF capacitor, C
GND. This capacitor will prevent parasitic board inductance
from forcing V
the integral body diode in the PMOS switch, a C
C
cause V
This could result in current flow through the body diode from
V
OUT
OUT
Battery
1.2V-5.5V
to V
is highly recommended. A C
OUT
IN
IN
.
to exceed V
and GND. A 1µF ceramic capacitor, C
OUT
-
below GND when the switch turns-off. Due to
OUT
, should be placed between V
IN
when the system supply is removed.
C1 = 1µF
OFF ON
OUT
DS(ON)
greater than C
P-Channel load
IN
greater than
IN
OUT
, placed
IN
IN
V
ON
IN
and
can
can
FPF1003/4
7
GND
Board Layout
For best performance, all traces should be as short as possible.
To be most effective, the input and output capacitors should be
placed close to the device to minimize the effects that parasitic
trace inductances may have on normal and short-circuit
operation. Using wide traces for V
minimize the parasitic electrical effects along with minimizing
the case to ambient thermal impedance.
V
OUT
C2 = 0.1µF
IN
, V
OUT
TO LOAD
and GND will help
www.fairchildsemi.com
R1 = 499Ω