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NCP4523/D Datasheet

  • NCP4523/D

  • CMOS 3CH-LDOs for RF Unit

  • 139.69KB

  • 24頁(yè)

  • ETC

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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鈥搑esistance 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鈥揾eld
communication equipment.
The output voltage of each regulator is fixed with high accuracy by
laser trim.
Since the package for these ICs is SSOP鈥? and SON鈥?, high density
mounting of the ICs on boards is possible.
Features
http://onsemi.com
MARKING
DIAGRAMS
8
8
1
SSOP鈥?
G SUFFIX
CASE 487
xxx
xyy
1
8
8
1
SON鈥?
SAN SUFFIX
CASE 486
xxxx = Product Code
yy = Lot Number
xxx
xyy
1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Ultra鈥揕ow 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鈥揚(yáng)in SSOP
Maximum Input Voltage 6.0 V
PIN ASSIGNMENT
V
OUT1
V
OUT2
V
OUT3
GND
1
2
3
4
(Top View)
8
7
6
5
V
DD
CE1
CE2
CE3
Applications
鈥?/div>
Power Source for Cellular Phones such as GSM, CDMA and
Personal Handy鈥揚(yáng)hone System
鈥?/div>
Power Source for Electrical Appliances such as Cameras, VCRs,
Camcorders, etc.
鈥?/div>
Power Source for Battery鈥揚(yáng)owered Equipment
SSOP鈥?
V
DD
CE1
CE2
CE3
1
2
3
4
(Top View)
8
7
6
5
V
OUT1
V
OUT2
V
OUT3
GND
SON鈥?
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.
漏
Semiconductor Components Industries, LLC, 2001
1
June, 2001 鈥?Rev. 1
Publication Order Number:
NCP4523/D

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