FPF1003A Fairchild Semiconductor, FPF1003A Datasheet - Page 7

• Manufacturer Part Number: FPF1003A
• Description: IC LOAD MNGMT SWITCH 6-WLCSP
• Manufacturer: Fairchild Semiconductor
• Series: IntelliMax™r
• Type: High Side Switchr

Specifications of FPF1003A

• 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
• Package: 6WLCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FPF1003ATR

FPF1003A Rev. E
Description of Operation
The FPF1003A is low R
controlled turn-on. The core of each device is a 30mΩ P-Chan-
nel 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 con-
trol signal.
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
placed close to the V
further reduce the voltage drop experienced as the switch is
turned on into a large capacitive load.
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
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.
OUT
OUT
Battery
1.2V-5.5V
to V
is highly recommended. A C
OUT
IN
IN
.
to exceed V
and GND. A 0.1µF ceramic capacitor, C
OUT
-
below GND when the switch turns-off. Due to
IN
OUT
pin. A higher value of C
, should be placed between V
IN
DS(ON)
when the system supply is removed.
C1 = 1µF
P-Channel load switches with
OFF ON
IN
OUT
, V
OUT
greater than C
and GND will help
IN
IN
can be used to
greater than
IN
, must be
OUT
IN
V
ON
IN
and
can
FPF1003A
7
GND
V
OUT
C2 = 0.1µF
TO LOAD
www.fairchildsemi.com
R1 = 499Ω