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  ON Semiconductor Electronic Components Datasheet  

NCP437 Datasheet

3A Ultra-Small Controlled Load Switch

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NCP437 pdf
NCP436, NCP437
3A Ultra-Small Controlled
Load Switch with
Auto-Discharge Path
The NCP436 and NCP437 are 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 PMOS
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 for the NCP437 part only.
Proposed in a wide input voltage range from 1.0 V to 3.6 V, in a
small 1 x 1.5 mm WLCSP6, pitch 0.5 mm.
Features
1.0 V − 3.6 V Operating Range
20 mW P MOSFET at 3.6 V
DC Current Up to 3 A
Output Auto−discharge
Active High EN Pin
WLCSP6 1 x 1.5 mm
These are Pb−Free Devices
Typical Applications
Mobile Phones
Tablets
Digital Cameras
GPS
Portable Devices
http://onsemi.com
MARKING DIAGRAM
WLCSP6
CASE 567FH
XXX
AYW
G
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
PIN DIAGRAM
A OUT
IN
B OUT
IN
C GND
EN
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 6 of this data sheet.
V+
DCDC Converter
or
LDO
LS
NCP437
A2 A1
IN OUT
B2 IN OUT B1
C2
EN
ENx
0
Figure 1. Typical Application Circuit
Platform IC’n
EN
© Semiconductor Components Industries, LLC, 2014
April, 2014 − Rev. 1
1
Publication Order Number:
NCP436/D


  ON Semiconductor Electronic Components Datasheet  

NCP437 Datasheet

3A Ultra-Small Controlled Load Switch

No Preview Available !

NCP437 pdf
NCP436, NCP437
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
EN block
Gate driver and soft
start control
Optional: NCP437
OUT: Pin A1, B1
GND: Pin C1
Figure 2. Block Diagram
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2


Part Number NCP437
Description 3A Ultra-Small Controlled Load Switch
Maker ON Semiconductor
Total Page 7 Pages
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