NCP4672
Dual Linear Voltage
Regulators with 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.
http://onsemi.com
MARKING
DIAGRAM
8
SOIC−8
NB SUFFIX
CASE 751
4672G
ALYW
8
1
1
Features
4672G = Specific Device Code
• 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 Pb−Free Device
A
L
YW
= Assembly Location
= Wafer Lot
= Date Code
PIN CONFIGURATION
V
out1
V
in
Rst
Rst
1
2
3
4
8
7
6
5
V
out
GND1
GND2
Typical Application
C
D
• Small Core and I/O Power
• Consumer Equipment
• Measurement Equipment
• Industrial Equipment
V
in
V
out2
(Top View)
V
in
RST
ORDERING INFORMATION
10 KW
V
in
V
V
Rst
V
V
out1
in
out1
†
Device
Package
Shipping
C
GND1
GND2
Rst
out2
4.7 mF
out
NCP4672DR2G
SOIC−8
(Pb−Free)
2500 Tape & Reel
C
D
10 nF
V
out2
V
out2
V
in
†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.
V
in
C
C
out2
4.7 mF
in
0.1 mF
Figure 1. Typical Application Circuit
Semiconductor Components Industries, LLC, 2004
1
Publication Order Number:
February, 2004 − Rev. 4
NCP4672/D