NCP3520 Datasheet, PDF (1/10 Pages) ON Semiconductor – LDO Regulator Controller

NCP3520/NCP3521
LDO Regulator Controller
The NCP3520 / NCP3521 parts are Low Drop Out (LDO) regulator
controllers for applications requiring high−currents 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
• Drop−In Replacement for Rohm BD3520FVM and BD3521FVM
• Functionally Equivalent to the
Rohm BD3501FVM and BD3502FVM
• These are Pb−Free Devices
Typical Applications
• Computer based gaming consoles
http://onsemi.com
MARKING
DIAGRAM
8
Micro8
XXXX
DM SUFFIX
AYW G
1
CASE 846A
G
STYLE 2
1
XXXX
A
Y
W
G
= 3520 for Fixed 1.2 V or
= 3521 for Fixed 1.5 V
= Assembly Location
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
0.01 mF
NCP3520
NCP3521
EN
VD
NRCS
5.0 A
1.0 mF
VCC
GND
G
VS
VFB
PIN CONNECTIONS
V_D
10 mF
NTMS4107N
or equivalent
3.0 A
V_O
220 mF
NRCS
1
GND
2
EN
3
VCC
4
8
VD
7
G
6
VS
5
VFB
Micro8
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
NOTE: For best performance V_FB should
utilize a Kelvin connection at the load.
Figure 1. Application Diagram
© Semiconductor Components Industries, LLC, 2007
1
March, 2007 − Rev. 0
Publication Order Number:
NCP3520/D