Voltage Regulator. NCP4640 Datasheet

NCP4640 Regulator. Datasheet pdf. Equivalent

Part NCP4640
Description Voltage Regulator
Feature NCP4640 50 mA, Wide Input Range, Voltage Regulator The NCP4640 is a CMOS 50 mA linear voltage regula.
Manufacture ON Semiconductor
Datasheet
Download NCP4640 Datasheet



NCP4640
NCP4640
50 mA, Wide Input Range,
Voltage Regulator
The NCP4640 is a CMOS 50 mA linear voltage regulator with high
input voltage and ultralow supply current. It incorporates multiple
protection features such as peak current limit, short circuit current
limit and thermal shutdown to ensure a very robust device.
A high maximum input voltage tolerance of 50 V and a wide
temperature range make the NCP4640 suitable for a variety of
demanding applications.
Features
Operating Input Voltage Range: 4 V to 36 V
Output Voltage Range: 2.0 to 12.0 V (0.1 steps)
±2% Output Voltage Accuracy
Output Current: min 50 mA (VIN = 8 V, VOUT = 5 V)
Line Regulation: 0.05%/V
Peak Current Limit Circuit
Short Current Limit Circuit
Thermal Shutdown Circuit
Available in SOT895 and SOIC6TL Package
These are PbFree Devices
Typical Applications
Power source for home appliances
Power source for car audio equipment, navigation system
Power source for notebooks, digital TVs, cordless phones and private
LAN systems
Power source for office equipment machines such as copiers,
printers, facsimiles, scanners, projectors, etc.
VIN
C1
100n
NCP4640x
VIN VOUT
CE
GND
VOUT
C2
100n
http://onsemi.com
MARKING
DIAGRAMS
SOIC6TL
CASE 751BR
XXX
XMM
1
SOT89 5
CASE 528AB
1
XXX
XMM
XXXX = Specific Device Code
MM = Date Code
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2011
February, 2011 Rev. 1
1
Publication Order Number:
NCP4640/D



NCP4640
NCP4640
VIN
Internal
VR
Vref
Current Limit
CE
Short Protection
Thermal Shutdown
VOUT
GND
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
SOT89
Pin No.
SOIC6TL
56
22
44
5
33
11
Pin Name
VIN
GND
GND
GND
CE
VOUT
Description
Input pin
Ground pin, all ground pins must be connected together when it is
mounted on board
Ground pin, all ground pins must be connected together when it is
mounted on board
Ground pin, all ground pins must be connected together when it is
mounted on board
Chip enable pin (“H” active)
Output pin
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2





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