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NCV4279C Datasheet

5.0V Micropower 150mA LDO Linear Regulator

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NCV4279C pdf
NCV4279C
5.0 V Micropower 150 mA
LDO Linear Regulator with
DELAY, Adjustable RESET,
and Sense Output
The NCV4279C is a 5.0 V precision micropower voltage regulator
with an output current capability of 150 mA.
The output voltage is accurate within ±2.0% with a maximum
dropout voltage of 0.5 V at 100 mA. Low quiescent current is a feature
drawing only 125 mA with a 1.0 mA load. This part is ideal for any and
all battery operated microprocessor equipment.
Microprocessor control logic includes an active reset output RO
with delay and a SI/SO monitor which can be used to provide an early
warning signal to the microprocessor of a potential impending reset
signal. The use of the SI/SO monitor allows the microprocessor to
finish any signal processing before the reset shuts the microprocessor
down.
The active Reset circuit operates correctly at an output voltage as
low as 1.0 V. The Reset function is activated during the power up
sequence or during normal operation if the output voltage drops
outside the regulation limits.
The reset threshold voltage can be decreased by the connection of an
external resistor divider to the RADJ lead. The regulator is protected
against reverse battery, short circuit, and thermal overload conditions.
The device can withstand load dump transients making it suitable for
use in automotive environments. The device has also been optimized
for EMC conditions.
If the application requires pullup resistors at the logic outputs Reset
and Sense Out, the NCV4269C with integrated resistors can be used.
Features
5.0 V ± 2.0% Output
Low 125 mA Quiescent Current
Active Reset Output Low Down to VQ = 1.0 V
Adjustable Reset Threshold
150 mA Output Current Capability
Fault Protection
+60 V Peak Transient Voltage
−40 V Reverse Voltage
Short Circuit
Thermal Overload
Early Warning through SI/SO Leads
Internally Fused Leads in SO−14 Package
Very Low Dropout Voltage
Electrical Parameters Guaranteed Over Entire Temperature Range
AEC−Q100 Grade 1 Qualified and PPAP Capable
These are Pb−Free Devices
www.onsemi.com
8
1
14
1
MARKING
DIAGRAMS
SO−8
D1 SUFFIX
CASE 751
8
4279C5
ALYW
G
1
14
SO−14
D2 SUFFIX
CASE 751A
NCV4279C5G
AWLYWW
1
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G = PB−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
May, 2015 − Rev. 4
1
Publication Order Number:
NCV4279C/D


  ON Semiconductor Electronic Components Datasheet  

NCV4279C Datasheet

5.0V Micropower 150mA LDO Linear Regulator

No Preview Available !

NCV4279C pdf
NCV4279C
I
Error
Amplifier
Reference
and Trim
Current and
Saturation
Control
Q
D
RADJ
SI
or
Reference
+
Figure 1. Block Diagram
RO
SO
GND
1
I
SI
RADJ
D
PIN CONNECTIONS
8
Q
SO
RO
GND
1
RADJ
D
GND
GND
GND
GND
RO
14
SI
I
GND
GND
GND
Q
SO
SO−8
SO−14
PACKAGE PIN DESCRIPTION
Package Pin Number
SO−8
3
4
SO−14
1
2
Pin Symbol
RADJ
D
5 3, 4, 5, 6, GND
10, 11, 12
67
RO
78
SO
89
Q
1 13
I
2 14
SI
Function
Reset Threshold Adjust; if not used to connect to GND.
Reset Delay; To Set Time Delay, Connect to GND with a Capacitor
Ground
Reset Output; This is an Open−Collector Output. Leave Open if Not Used.
Sense Output; This is an Open−Collector Output. If not used, keep open.
5 V Output; Connect to GND with a 10 mF Capacitor, ESR < 2.5 W.
Input; Connect to GND Directly at the IC with a Ceramic Capacitor.
Sense Input; If not used, Connect to Q.
www.onsemi.com
2


Part Number NCV4279C
Description 5.0V Micropower 150mA LDO Linear Regulator
Maker ON Semiconductor
Total Page 14 Pages
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