NCP439 Datasheet, PDF (1/9 Pages) ON Semiconductor – 2A Very Low Ron Switches at Low Vin Voltage

NCP439
2A Very Low Ron Switches
at Low Vin Voltage
The NCP439 is a very low Ron MOSFET controlled by external
logic pin, allowing optimization of battery life, and portable device
autonomy.
This load switch is a best in class in term of R_DS(on) optimization at
low V_IN voltage.
Due to a current consumption optimization with PMOS structure,
leakage currents are eliminated by isolating connected IC’s on the
battery when not used.
Output discharge path is also embedded to eliminate residual
voltages on the output.
Proposed in wide input voltage range from 1.0 V to 3.6 V, and a very
small 0.96 x 0.96 mm WLCSP4, 0.5 mm pitch.
Features
• 1 V – 3.6 V Operating Range
• 37 mW P MOSFET at 1.8 V
• DC Current Up to 2 A
• Output Auto−Discharge
• Active High EN Pin
• WLCSP4 0.96 x 0.96 mm
• This is a Pb−Free Device
Typical Applications
• Mobile Phones
• Tablets
• Digital Cameras
• GPS
• Portable Devices
http://onsemi.com
MARKING
DIAGRAM
1
XX
WLCSP4
CASE 567FG
XX
= Specific Device Code
A
= Assembly Location
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= Pb−Free Package
PIN DIAGRAM
1
2
A OUT
IN
B GND
EN
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
DCDC Converter
or
LDO
ENx
A2 _{IN OUT} A1
IC’n
B2 _{EN GND} B1
EN
0
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2013
1
July, 2013 − Rev. 0
Publication Order Number:
NCP439/D