© Semiconductor Components Industries, LLC, 2014
June, 2014 − Rev. 1
1 Publication Order Number:
NCP458R/D
NCP458R, NCP459
4 A Single Load Switch for
Low Voltage Rail
The NCP458R and NCP459 are power load switch with very low
Ron NMOSFET controlled by external logic pin, allowing
optimization of battery life, and portable device autonomy.
Indeed, thanks to a best in class current consumption optimization
with NMOS structure, leakage currents are drastically decreased.
Offering optimized leakages isolation on the ICs connected on the
battery.
Output discharge path is proposed, in the NCP459 version , to
eliminate residual voltages on the external components connected on
output pin.
Reverse voltage protection, from OUT to IN is offered in the
NCP458R version.
Proposed in wide input voltage range from 0.75 V to 5.5 V, and a
very small CSP8 1 x 2 mm
2
.
Features
• 0.75 V − 5.5 V Operating Range
• 11 mW N−MOSFET
• Vbias Rail Input
• DC Current up to 4 A
• Output Auto−Discharge Option
• Reverse Blocking Option
• Active High EN Pin
• CSP8, 1 x 2 mm
2
, Pitch 0.5 mm
Typical Applications
• Notebooks
• Tablets
• Wireless
• Mobile Phones
• Digital Cameras
ENx
EN
0
DCDC Converter
V+
Platform IC’n
LDO
LS
or
SMPS
Vcc
NCP458−459
IN
B1
IN
C1
Gate
A2
Vbias
D1
GND
D2
EN
A1
OUT
C2
OUT
B2
Figure 1. Typical Application Schematic
http://onsemi.com
See detailed ordering and shipping information on page 12 o
this data sheet.
ORDERING INFORMATION
MARKING
DIAGRAM
WLCSP8
CASE 567HD
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
XXXX
AYWWG
EN
IN
IN
VBIAS
GATE
OUT
OUT
GND
(Top View)
12
A
B
C
D
PINOUT
