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  ON Semiconductor Electronic Components Datasheet  

NCV4269 Datasheet

Micropower 150 mA LDO Linear Regulator

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NCV4269
5.0 V Micropower 150 mA
LDO Linear Regulator with
DELAY, Adjustable RESET,
and Sense Output
The NCV4269 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 240 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.
Features
5.0 V ± 2.0% Output
Low 240 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 SO14 and SO20L Packages
Integrated Pullup Resistor at Logic Outputs (To Use External
Resistors, Select the NCV4279)
Very Low Dropout Voltage
Electrical Parameters Guaranteed Over Entire Temperature Range
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
These are PbFree Devices
http://onsemi.com
MARKING
DIAGRAMS
8
1
SO8
D SUFFIX
CASE 751
8
4269
ALYW
G
1
8
8
SO8
EXPOSED PAD
D SUFFIX
V4269
ALYW
1 CASE 751AC
G
1
14
1
SO14
D SUFFIX
CASE 751A
14
NCV4269
AWLYWWG
1
20
1
SO20L
DW SUFFIX
CASE 751D
20
NCV4269
AWLYYWWG
1
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G, G = Pb Free
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2008
November, 2008 Rev. 13
1
Publication Order Number:
NCV4269/D


  ON Semiconductor Electronic Components Datasheet  

NCV4269 Datasheet

Micropower 150 mA LDO Linear Regulator

No Preview Available !

NCV4269
I Error
Amplifier
Reference
and Trim
Current and
Saturation
Control
Q
RSO
RRO
D
RADJ
SI
or
Reference
+
Figure 1. Block Diagram
RO
SO
GND
I1
SI
RADJ
D
8Q
SO
RO
GND
SO8
PIN CONNECTIONS
1
RADJ
D
GND
GND
GND
GND
RO
14
SI
I
GND
GND
GND
Q
SO
SO14
1
RADJ
D
NC
GND
GND
GND
GND
NC
NC
RO
20
SI
I
NC
GND
GND
GND
GND
NC
Q
SO
SO20L
PACKAGE PIN DESCRIPTION
Package Pin Number
SO8 SO8 EP SO14
SO20L
33
1
1
44
2
2
5 5 3, 4, 5, 6, 4, 5, 6, 7, 14,
10, 11, 12 15, 16, 17
−−
3, 8, 9, 13, 18
66
7
10
77
8
11
88
11
22
EPAD
9
13
14
12
19
20
Pin
Symbol
RADJ
D
GND
NC
RO
SO
Q
I
SI
EPAD
Function
Reset Threshold Adjust; if not used to connect to GND.
Reset Delay; To Set Time Delay, Connect to GND with Capacitor
Ground
No connection to these pins from the IC.
Reset Output; The OpenCollector Output has a 20 kW Pullup Resistor
to Q. Leave Open if Not Used.
Sense Output; This OpenCollector Output is Internally Pulled Up by
20 kW pullup resistor to Q. If not used, keep open.
5 V Output; Connect to GND with a 10 mF Capacitor, ESR < 10 W.
Input; Connect to GND Directly at the IC with a Ceramic Capacitor.
Sense Input; If not used, Connect to Q.
Connect to ground potential or leave unconnected
http://onsemi.com
2


Part Number NCV4269
Description Micropower 150 mA LDO Linear Regulator
Maker ON Semiconductor
Total Page 17 Pages
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