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NCP451 Datasheet

3A Ultra-Small Low Ron and Controlled Load Switch

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NCP451
3A Ultra-Small Low Ron
and Controlled Load Switch
with Auto-Discharge Path
The NCP451 is a very 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 NMOS
structure, leakage currents are eliminated by isolating connected IC on
the battery when not used.
Output discharge path is also embedded to eliminate residual
voltages on the output rail.
Proposed in a wide input voltage range from 0.75 V to 5.5 V, in a
small 0.9 x 1.4 mm WLCSP6, pitch 0.5 mm.
Features
0.75 V – 5.5 V Operating Range
12 mW N MOSFET from 3.6 V to 5.5 V
13 mW N MOSFET from 1 V to 3.3 V
DC Current Up to 3 A
Output Auto−Discharge
Active High EN Pin
WLCSP6 0.9 x 1.4 mm
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Mobile Phones
Tablets
Digital Cameras
GPS
Portable Devices
www.onsemi.com
MARKING
DIAGRAM
WLCSP6
FC SUFFIX
CASE 499BR
XXXXG
AYWW
WLCSP6
AFC SUFFIX
CASE 567KB
XXXXG
AYWW
XXXX = Specific Device Code
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
PINOUT DIAGRAM
12
A OUT
IN
B OUT
IN
C GND
EN
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
July, 2015 − Rev. 9
1
Publication Order Number:
NCP451/D


  ON Semiconductor Electronic Components Datasheet  

NCP451 Datasheet

3A Ultra-Small Low Ron and Controlled Load Switch

No Preview Available !

V+
DCDC Converter
or
LDO
NCP451
LS
A2
B2
C2
NCP451
A1
IN OUT
IN OUT B1
EN
ENx
0
Figure 1. Typical Application Circuit
Platform IC’n
EN
PIN FUNCTION DESCRIPTION
Pin Name Pin Number
Type
IN
A2, B2
POWER
GND
EN
OUT
C1
C2
A1, B1
POWER
INPUT
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, B2
EN: Pin C2
Control
logic
Charge Pump and
soft start control
EN Block
OUT: Pin A1, B1
GND: Pin C1
Figure 2. Block Diagram
www.onsemi.com
2


Part Number NCP451
Description 3A Ultra-Small Low Ron and Controlled Load Switch
Maker ON Semiconductor
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