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NCP434

ON Semiconductor
Part Number NCP434
Manufacturer ON Semiconductor
Description 2A Ultra-Small Controlled Load Switch
Published Oct 31, 2013
Detailed Description NCP434, NCP435 2A Ultra-Small Controlled Load Switch with Auto-Discharge Path The NCP434 and NCP435 are a low Ron MOSFE...
Datasheet PDF File NCP434 PDF File

NCP434
NCP434

Overview
NCP434, NCP435 2A Ultra-Small Controlled Load Switch with Auto-Discharge Path The NCP434 and NCP435 are a low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy.
Indeed, 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 (NCP435 only).
Available in wide input voltage range from 1.
0 V to 4.
0 V, and a very small 0.
96 x 0.
96 mm WLCSP4, 0.
5 mm pitch.
Features • 1 V − 3.
6 V Operating Range • 29 mW P MOSFET at 3.
3 V • DC current up to 2 A • Output Auto−discharge (NCP435) • Active high EN pin • WLCSP4 0.
96 x 0.
96 mm • These are Pb−Free Devices Typical Applications • Mobile Phones • Tablets • Digital Cameras • GPS • Portable Devices www.
onsemi.
com WLCSP4 CASE 567FG MARKING DIAGRAM 1 XX AYW XX = Specific Device Code A = Assembly Location Y = Year W = Wafer Lot PIN DIAGRAM 12 A OUT IN B GND EN (Top View) ORDERING INFORMATION See detailed ordering, marking and shipping information in the package dimensions section on page 9 of this data sheet.
V+ DCDC Converter or LDO LS NCP435 A2 A1 IN OUT B2 EN GND B1 Platform IC’n ENx EN 0 Figure 1.
Typical Application Circuit © Semiconductor Components Industries, LLC, 2013 August, 2016 − Rev.
5 1 Publication Order Number: NCP435/D NCP434, NCP435 PIN FUNCTION DESCRIPTION Pin Name Pin Number Type IN A2 POWER GND EN OUT B1 POWER B2 INPUT A1 OUTPUT Description Load−switch input voltage; connect a 1 mF or greater ceramic capacitor from IN to GND as close as possible to the IC.
Ground connection.
Enable input, logic high turns on power switch.
Load−switch output; connect a 1 mF ceramic capacitor from OUT to GND as close as possible to the IC is recommended.
BLOCK DIAGRAM IN: Pin A2 EN: Pin B2 Control logic Gate driver and soft start control EN block OUT: Pin A1 Option...


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