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  ON Semiconductor Electronic Components Datasheet  

NCV8669 Datasheet

LDO Regulator

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NCV8669
LDO Regulator - Very Low
Iq, Reset, Early Warning
150 mA
The NCV8669 is 150 mA LDO regulator with integrated reset and
early warning functions dedicated for microprocessor applications. Its
robustness allows NCV8669 to be used in severe automotive
environments. The NCV8669 utilizes precise 1 MW internal resistor
divider for Early Warning function which significantly reduces overall
application quiescent current and number of external components.
Very low quiescent current as low as 42 mA typical for NCV8669
makes it suitable for applications permanently connected to battery
requiring very low quiescent current with or without load. The
NCV8669 contains protection functions as current limit and thermal
shutdown.
http://onsemi.com
14
1
SO14
D SUFFIX
CASE 751A
MARKING
DIAGRAM
14
V8669yzxxG
AWLYWW
1
Features
Output Voltage Options: 5 V
y
= Timing and Reset Threshold Option*
z
= Early Warning Option*
xx
= Voltage Option
Output Voltage Accuracy: ±2 %
Output Current up to 150 mA
Very Low Quiescent Current: Typ 42 mA (Including Internal Early
Warning Resistor Divider Current)
Very Low Dropout Voltage
Early Warning Threshold Accuracy: $10% Over Temperature
5.0 V (xx = 50)
A
= Assembly Location
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= PbFree Package
*See APPLICATION INFORMATION section.
Range (Using RSI_ext External Resistor with $1% 100 ppm/°C)
Microprocessor Compatible Control Functions:
Reset with Adjustable Poweron Delay
ORDERING INFORMATION
See detailed ordering and shipping information in the
dimensions section on page 13 of this data sheet.
Early Warning
Wide input voltage operation range: up to 40 V
Protection Features:
Current Limitation
Typical Applications
Body Control Module
Thermal Shutdown
Instruments and Clusters
These are PbFree Devices
Occupant Protection and Comfort
Powertrain
VBAT
Cin
0.1 mF
*
RSI_ext
*RSI_ext is optional
** z is 1, 2, 3, ... , n
Vout
Vin
Vout
VDD
Cout
SI
2.2 mF
NCV8669yz**
DT
SO
RO
Microprocessor
I/O
RESET
GND
Figure 1. Application Circuit
© Semiconductor Components Industries, LLC, 2011
1
September, 2019 Rev. 1
Publication Order Number:
NCV8669/D


  ON Semiconductor Electronic Components Datasheet  

NCV8669 Datasheet

LDO Regulator

No Preview Available !

NCV8669
Vin
RSI1
RSI2
Driver with
Current
Limit
Thermal
Shutdown
Vref
SI
V ref
GND
Vout
RO
TIMING
CIRCUIT
SO
and
RESET
OUTPUT
DRIVER
and
SENSE
OUTPUT
DRIVER
DT
*
*Pulldown Resistor (typ 150 kW) active only in Reset State.
Figure 2. Simplified Block Diagram
1
NC
DT
GND
GND
GND
GND
RO
14
SI
Vin
GND
GND
GND
Vout
SO
SO14
Figure 3. Pin Connections
(Top View)
PIN FUNCTION DESCRIPTION
Pin No.
SO14
Pin Name
Description
1
NC
Not Connected.
2
3, 4, 5, 6,
10, 11,
12
DT
GND
Reset Delay Time Select. Short to GND or connect to Vout to select time.
Power Supply Ground.
7
RO
Reset Output. 30 kW internal PullUp resistor connected to Vout. RO goes Low when Vout drops by more
than 7% (typ.) from its nominal value.
8
SO
Early Warning Output. 30 kW internal PullUp resistor connected to Vout. It can be used to provide early
warning of an impending reset condition. Leave open if not used.
9
Vout
Regulated Output Voltage. Connect 2.2 mF capacitor with ESR < 100 W to ground.
13
Vin
Positive Power Supply Input. Connect 0.1 mF capacitor to ground.
14
SI
Early Warning Adjust Input; connect RSI_ext against GND to adjust Input Voltage Early Warning Thresh-
old or leave unconnected. See Electrical Characteristics Table and Application Information sections for
more information.
http://onsemi.com
2


Part Number NCV8669
Description LDO Regulator
Maker ON Semiconductor
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NCV8669 Datasheet PDF






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