Voltage Regulators. NCP4672 Datasheet

NCP4672 Regulators. Datasheet pdf. Equivalent

Part NCP4672
Description Dual Linear Voltage Regulators
Feature NCP4672 Linear Voltage Regulator - Dual, Vin and Vout Voltage Detector The NCP4672 is a dual linear.
Manufacture ON Semiconductor
Total Page 8 Pages
Datasheet
Download NCP4672 Datasheet



NCP4672
NCP4672
Linear Voltage Regulator -
Dual, Vin and Vout Voltage
Detector
The NCP4672 is a dual linear voltage regulator with input voltage
and output voltage detectors. This part is useful in systems where
multiple voltages are required such as for core and I/O. The NCP4672
is very accurate at 2% over full input voltage and full load current. The
NCP4672 eliminates the need for external voltage supervision due to
the two built in voltage detectors. The voltage detector on the input is
set to 7.0 V. The output voltage detector is for channel 1 and is set to
2.9 V. An external capacitor is used to set the duration of this reset
signal. Other features include short circuit protection and thermal
shutdown protection. The NCP4672 has been designed to work with a
4.7 mF output capacitor having an ESR between 0.1 W and 5.0 W.
8
1
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SOIC8
NB SUFFIX
CASE 751
MARKING
DIAGRAM
8
4672
ALYW
G
1
Features
Accuracy: 2% at Full Voltage and Load
Excellent Ripple Rejection: 70 dB @ 1 kHz
Voltage Detector for Input Voltage
Voltage Detector for Output Voltage
Programmable Delay of Reset Signal
Thermal Short Circuit Protection
This is a PbFree Device
Typical Application
Small Core and I/O Power
Consumer Equipment
Measurement Equipment
Industrial Equipment
Vin RST
10 KW
Vin
Vin Rst Vout1
10 nF
Vout Rst
CD
Vin
GND1
GND2
Vout2
Vout2
Vin 0.1CmiFn
C4.o7utm2F
4672
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Package
PIN CONFIGURATION
Vin Rst 1
Vout Rst 2
CD 3
Vin 4
8 Vout1
7 GND1
6 GND2
5 Vout2
(Top View)
Vout1
4C.o7utm2F
ORDERING INFORMATION
Device
Package
Shipping
NCP4672DR2G SOIC8 2500 Tape & Reel
(PbFree)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2006
October, 2019 Rev. 4
1
Publication Order Number:
NCP4672/D



NCP4672
NCP4672
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage
Output Voltage
Output Current 1
Output Current 2
Output Short Circuit Duration
Vinmax
Vout
Iout1max
Iout2max
0.3 ~ 18
0.3 to Vin + 0.3
30
80
Infinite
V
V
mA
mA
Power Dissipation and Thermal Characteristics SOIC8
Power Dissipation
Thermal Resistance, JunctiontoAmbient
Minimum Pad Size
200 mm2 Pad Size (Note 1)
Thermal Resistance, JunctiontoCase
PD
RqJA
RqJC
Internally Limited
190
160
25
W
°C/W
°C/W
°C/W
Operating Junction Temperature Range
Tstg 40 to 125
°C
Storage Temperature Range
Tsolder
55 to 150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to Figure 4 for more information.
PIN DESCRIPTION
Pin
Number
Symbol
1 Vin RST
2 Vo RST
3 CD
4 VCC
5 Vout2
6 GND2
7 GND1
8 Vout1
Description
Opencollector, activelow output of the input voltage detector with hysteresis. Threshold levels are
typical 7.0 V/ 7.35 V at VCC pin.
Activelow
Sensing is
woiuthtphuyt sotfetrheesirsesetthgreesnheorladtoler.vRelessaertegteynpeicraaltloyr2is.9bVa/se2d.9o5nVsaetnVsionugt1o. fRtehseeVt oisutg1evnoeltraagteed.
at
rising edge of the Vout1 and it’s duration is set by external capacitor connected to CD pin.
Programmable delay of the reset generator. Delay is adjusted by inserting a capacitor between CD and
GND (typically 10 ms for 10 nF capacitor).
Supply Voltage
1.8 V/ 80 mA LDO Regulator Output
Ground for Vout2 (internally connected with GND1)
Ground for Vout1 (internally connected with GND2)
3.5 V/30 mA LDO Regulator Output
RECOMMENDED CONDITIONS (TA = 25°C, Cin = 0.1 mF Ceramic, Cout = 4.7 mF)
Characteristics
Symbol
Min
Typ
Max Unit
Input Voltage
Output Current (where Vout remains within accuracy)
Vin 3.8 12 16 V
Iout1
Iout2
0
0
20 mA
70
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