NCP4523 PDF даташит
Спецификация NCP4523 изготовлена «ON Semiconductor» и имеет функцию, называемую «CMOS 3CH-LDOs». |
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Детали детали
Номер произв | NCP4523 |
Описание | CMOS 3CH-LDOs |
Производители | ON Semiconductor |
логотип |
24 Pages
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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−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 Package is 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
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8
1
SSOP−8
G SUFFIX
CASE 487
MARKING
DIAGRAM
8
xxx
xyy
1
xxxx = Product Code
yy = Lot Number
PIN ASSIGNMENT
VOUT1 1
VOUT2 2
VOUT3 3
GND 4
8 VDD
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, 2004
December, 2004 − Rev. 4
1
Publication Order Number:
NCP4523/D
Free Datasheet http://www.datasheet4u.com/
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PIN DESCRIPTION
Pin Number
NCP4523G
SSOP−8
Symbol
1 VOUT1
2 VOUT2
3 VOUT3
4 GND
5 CE3
6 CE2
7 CE1
8 VDD
Output Pin
Output Pin
Output Pin
Ground Pin
Chip Enable Pin
Chip Enable Pin
Chip Enable Pin
Input Pin
NCP4523
Description
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage
VIN 7.0
V
Input Voltage (CE Pin)
CE −0.3 X VIN + 0.3
V
Output Voltage
VOUT
−0.3 X VIN + 0.3
V
Output Current (VOUT1)
IOUT1
200
mA
Output Current (VOUT2)
IOUT2
100
mA
Output Current (VOUT3)
IOUT3
100
mA
Power Dissipation
PD 300 mW
Operating Temperature Range
Topt −40 X 85
°C
Storage Temperature Range
Tstg −55 X 125
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
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NCP4523
ELECTRICAL CHARACTERISTICS
VR1 (Topt = 25°C)
Characteristics
Conditions
Output Voltage
Output Current
Load Regulation
Dropout Voltage
VIN − VOUT = 1.0 V
1.0 mA v IOUT v 30 mA
VIN − VOUT = 1.0 V
VIN − VOUT = 1.0 V
1.0 mA v IOUT v 80 mA
Refer to Electrical Characteristic
by Output Voltage (VR1)
Supply Current
Supply Current (Standby)
Line Regulation
Ripple Rejection
Input Voltage
VIN − VOUT = 1.0 V
VIN − VOUT = 1.0 V
VCE = GND
VOUT + 0.5 V v VIN v 6.0 V
IOUT = 30 mA
f = 1.0 kHz, sinusoidal 0.5 Vp−p
VIN − VOUT = 1.0 V
−
Output Voltage Temperature
Coefficient
Short Current Limit
CE Pull−down Resistance
IOUT = 50 mA
−40°C v Topt v 85°C
VOUT = 0 V
−
CE Input Voltage “H’’
−
CE Input Voltage “L’’
−
Output Noise
BW = 10 Hz − 100 kHz
Symbol
VOUT
IOUT
DVOUT/DIOUT
VDIF
ISS
Istandby
DVOUT/DVIN
RR
VIN
DVOUT/DT
ILIM
RDN
VCEH
VCEL
en
Min
0.98
150
−
−
−
−
−
−
−
−
−
2.5
1.5
0.00
−
Typ
−
−
12
−
70
0.1
0.05
70
−
"100
50
5.0
−
−
60
Max
1.02
−
40
−
120
1.0
0.20
−
6.0
−
−
10
VIN
0.25
−
Unit
V
mA
mV
−
µA
µA
%/V
dB
V
ppm/
°C
mA
MW
V
V
µVrms
ELECTRICAL CHARACTERISTICS BY OUTPUT VOLTAGE (VR1)
Output Voltage
VOUT (V)
2.0 v VOUT v 2.4
2.5 v VOUT v 2.7
2.8 v VOUT v 3.3
Dropout Voltage VDIF (V)
Condition
Typ Max
0.35 0.55
IOUT = 150 mA
0.30 0.45
0.22 0.35
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