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ON Semiconductor - (NCP3520 / NCP3521) LDO Regulator Controller

Numéro de référence NCP3520
Description (NCP3520 / NCP3521) LDO Regulator Controller
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NCP3520 fiche technique
NCP3520/NCP3521
LDO Regulator Controller
The NCP3520 / NCP3521 parts are Low Drop Out (LDO) regulator
controllers for applications requiring highcurrents and ultra low
dropout voltages. The use of an external NMOS driver allows the user
to adapt the device to a multitude of applications depending on system
requirements for current and dropout voltage.
Features
Fixed Voltage Options
NCP3520 (1.2 V)
NCP3521 (1.5 V)
Low Operating Current
Low Standby Current (sleep mode < 1 mA)
Non Rush Current on Startup
Short Circuit Protection
1% Output Voltage Tolerance
DropIn Replacement for Rohm BD3520FVM and BD3521FVM
Functionally Equivalent to the
Rohm BD3501FVM and BD3502FVM
These are PbFree Devices
Typical Applications
Computer based gaming consoles
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NCP3520
NCP3521
EN VD
NRCS
VD
10 mF
0.01 mF
5.0 A
1.0 mF
VCC
GND
G
VS
VFB
NTMS4107N
or equivalent
3.0 A
220 mF
VO
http://onsemi.com
MARKING
DIAGRAM
8
Micro8
XXXX
DM SUFFIX
AYW G
1
CASE 846A
STYLE 2
G
1
XXXX
A
Y
W
G
= 3520 for Fixed 1.2 V or
= 3521 for Fixed 1.5 V
= Assembly Location
= Year
= Work Week
= PbFree Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
NRCS
GND
EN
VCC
18
27
36
45
Micro8
(Top View)
VD
G
VS
VFB
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
NOTE: For best performance VFB should
utilize a Kelvin connection at the load.
Figure 1. Application Diagram
© Semiconductor Components Industries, LLC, 2007
March, 2007 Rev. 0
1
Publication Order Number:
NCP3520/D

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