FPF1014 Fairchild Semiconductor, FPF1014 Datasheet - Page 8

• Manufacturer Part Number: FPF1014
• Description: IC LOAD SWITCH 1V ADVANCE 6WLCSP
• Manufacturer: Fairchild Semiconductor
• Series: IntelliMax™r
• Type: High Side Switchr

Specifications of FPF1014

• Number Of Outputs: 1
• Rds (on): 27 mOhm
• Internal Switch(s): Yes
• Current Limit: 1.5A
• Voltage - Input: 0.8 ~ 1.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-WLCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

©2009 Fairchild Semiconductor Corporation
FPF1013 / FPF1014 • Rev. 1.0.4
Improving Thermal Performance
An improper layout could result in higher junction temperature.
This concern applies when continuous operation current is set
to maximum allowed current and switch turns into a large
capacitive load that introduce high inrush current in the
transient. Since FPF1013/4 does not have thermal shutdown
feature a proper layout can essentially reduce power dissipation
of the switch in transient and prevents switch to exceed the
maximum absolute power dissipation of 1.2W.
The V
generated during a high load current condition. The layout
suggested in Figure 16 provides each pin with adequate copper
so that heat may be transferred as efficiently as possible out of
the device. The ON pin trace may be laid-out diagonally from
the device to maximize the area available to the ground pad.
Placing the input and output capacitors as close to the device as
possible also contributes to heat dissipation, particularly during
high load currents.
IN
Figure 16: Proper Layout of Output, Input,
, V
OUT
and GND pins will dissipate most of the heat
|and Ground Copper Area
8
Demonstration Board Layout
FPF1013/4 demonstration board has the components and
circuitry to demonstrate the load switches functions. Thermal
performance is improved using a few techniques recommended
in the layout recommendations section of datasheet.
Figure 17. FPF1013/4 Demonstration Board Layout
www.fairchildsemi.com