NCP4523G3T1G Datasheet, PDF (1/24 Pages) ON Semiconductor – CMOS 3CH−LDOs for RF Unit

NCP4523
CMOS 3CH−LDOs
for RF Unit
The NCP4523 Series are multi voltage regulator ICs with high
output voltage accuracy, extremely low supply current, low noise, low
ON−resistance and high ripple rejection by CMOS process. The
NCP4523 Series contain three voltage regulators. Each of these
voltage regulators in the NCP4523 Series consists of a voltage
reference unit, an error amplifier, resistors for setting output voltage, a
current limit circuit and a chip enable circuit.
The chip enable function contributes to prolong battery life. Further,
regulators in the NCP4523 Series are with low dropout voltage,
excellent load transient response and line transient response, thus the
NCP4523 series are very suitable for the power supply for hand−held
communication equipment.
The output voltage of each regulator is fixed with high accuracy by
laser trim.
Since the package for these ICs is SSOP−8, high density mounting
of the ICs on boards is possible.
Features
• Ultra−Low Supply Current
• Low Standby Current
• Low Dropout Voltage
• High Ripple Rejection, Typical 70 dB (f = 1.0 kHz)
• High Output Voltage Accuracy, "2.0%
• Excellent Load Transient Response and Line Transient Response
• Small Package 8−Pin SSOP
• Maximum Input Voltage 6.0 V
• Pb−Free Packages are Available
Applications
• Power Source for Cellular Phones such as GSM, CDMA and
Personal Handy−Phone System
• Power Source for Electrical Appliances such as Cameras, VCRs,
Camcorders, etc.
• Power Source for Battery−Powered Equipment
http://onsemi.com
8
1
SSOP−8
G SUFFIX
CASE 487
MARKING
DIAGRAM
8
xxx
xyy
1
xxxx = Product Code
yy = Lot Number
PIN ASSIGNMENT
V_OUT1 1
V_OUT2 2
V_OUT3 3
GND 4
8 V_DD
7 CE1
6 CE2
(Top View)
SSOP−8
5 CE3
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 22 of this data sheet.
© Semiconductor Components Industries, LLC, 2005
1
September, 2005 − Rev. 6
Publication Order Number:
NCP4523/D