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PDF NCP500 Data sheet ( Hoja de datos )
| Número de pieza | NCP500 | |
| Descripción | 150 mA CMOS Low Noise Low-Dropout Voltage Regulator | |
| Fabricantes | ON | |
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NCP500
150 mA CMOS Low Noise
Low−Dropout Voltage
Regulator
The NCP500 series of fixed output low dropout linear regulators are
designed for portable battery powered applications which require low
noise operation, fast enable response time, and low dropout. The
device achieves its low noise performance without the need of an
external noise bypass capacitor. Each device contains a voltage
reference unit, an error amplifier, a PMOS power transistor, and
resistors for setting output voltage, and current limit and temperature
limit protection circuits.
The NCP500 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 1.0 mF.
Features
• Ultra−Low Dropout Voltage of 170 mV at 150 mA
• Fast Enable Turn−On Time of 20 msec
• Wide Operating Voltage Range of 1.8 V to 6.0 V
• Excellent Line and Load Regulation
• High Accuracy Output Voltage of 2.5%
• Enable Can Be Driven Directly by 1.0 V Logic
• Typical RMS Noise Voltage 50 mV with No Bypass Capacitor
(BW = 10 Hz to 100 kHz)
• Very Small QFN 2x2 Package
• Pb−Free Package May be Available.* The G−Suffix Denotes a
Pb−Free Lead Finish
Typical Applications
• Noise Sensitive Circuits − VCO’s, RF Stages, etc.
• SMPS Post−Regulation
• Hand−Held Instrumentation
• Camcorders and Cameras
Vin
1 (3)
Thermal
Shutdown
Driver w/
Current
Limit
Enable
ON 3 (1)
Vout
5 (4)
OFF
GND 2 (2, 5)
NOTE: Pin numbers in parenthesis indicate QFN package.
Figure 1. Simplified Block Diagram
© Semiconductor Components Industries, LLC, 2004
January, 2004 − Rev. 16
1
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5
1
TSOP−5
SN SUFFIX
CASE 483
1
6
QFN 2x2
SQL SUFFIX
CASE 488
PIN CONNECTIONS AND
MARKING DIAGRAMS
TSOP−5
Vin 1
GND 2
5 Vout
Enable 3
4 N/C
(Top View)
QFN 2x2
Enable 1
6 N/C
GND 2
Vin 3
xxM
5 GND
4 Vout
(Top View)
xxx, xx
Y
W
M
= Version
= Year
= Work Week
= Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the ON
Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Publication Order Number:
NCP500/D
1 page  
NCP500
ELECTRICAL CHARACTERISTICS (Vin = 3.3 V, Cin = 1.0 mF, Cout = 1.0 mF, for typical value TA = 25°C, for min and max
values TA = −40°C to 85°C, Tjmax = 125°C, unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
−2.8 V
Output Voltage
(TA =−40°C to 85°C, Iout = 1.0 mA to 150 mA)
Vout
V
2.730 2.8 2.870
Line Regulation (Vin = 3.3 V to 6.0 V, Iout = 1.0 mA)
Load Regulation (Iout = 1.0 mA to 150 mA)
Dropout Voltage (Measured at Vout −2.0%, TA = −40°C to 85°C)
(Iout = 1.0 mA)
(Iout = 75 mA)
(Iout = 150 mA)
Regline
Regload
Vin−Vout
−
−
−
−
−
1.0 10 mV
15 45 mV
mV
2.0 10
90 150
170 250
Output Short Circuit Current
Ripple Rejection
(Vin = Vout (nom.) + 1.0 V + 0.5 Vpp, f = 1.0 kHz, Io = 60 mA)
Quiescent Current
(Enable Input = 0 V)
(Enable Input = 0.9 V, Iout = 1.0 mA)
(Enable Input = 0.9 V, Iout = 150 mA)
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Iout(max)
RR
IQ
Vth(EN)
200
−
−
−
−
0.9
−
540
62
0.01
185
185
−
−
700 mA
− dB
mA
1.0
300
300
V
−
0.15
Enable Input Bias Current
Output Turn On Time (Enable Input = 0 V to Vin)
IIB(EN)
−
−
−
3.0 100 nA
20 100 ms
ELECTRICAL CHARACTERISTICS (Vin = 3.5 V, Cin = 1.0 mF, Cout = 1.0 mF, for typical value TA = 25°C, for min and max
values TA = −40°C to 85°C, Tjmax = 125°C, unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
−3.0 V
Output Voltage
(TA =−40°C to 85°C, Iout = 1.0 mA to 150 mA)
Vout
V
2.925 3.0 3.075
Line Regulation (Vin = 3.5 V to 6.0 V, Iout = 1.0 mA)
Load Regulation (Iout = 1.0 mA to 150 mA)
Dropout Voltage (Measured at Vout −2.0%, TA = −40°C to 85°C)
(Iout = 1.0 mA)
(Iout = 75 mA)
(Iout = 150 mA)
Regline
Regload
Vin−Vout
−
−
−
−
−
1.0 10 mV
15 45 mV
mV
2.0 10
85 130
165 240
Output Short Circuit Current
Ripple Rejection
(Vin = Vout (nom.) + 1.0 V + 0.5 Vpp, f = 1.0 kHz, Io = 60 mA)
Quiescent Current
(Enable Input = 0 V)
(Enable Input = 0.9 V, Iout = 1.0 mA)
(Enable Input = 0.9 V, Iout = 150 mA)
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Iout(max)
RR
IQ
Vth(EN)
200
−
−
−
−
0.9
−
540
62
0.01
190
190
−
−
700 mA
− dB
mA
1.0
300
300
V
−
0.15
Enable Input Bias Current
Output Turn On Time (Enable Input = 0 V to Vin)
IIB(EN)
−
−
−
3.0 100 nA
20 100 ms
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5
5 Page 
NCP500
5.0
4.0
3.0
200
150
100
50
0
−50
0
Vin = 3.8 V to 4.8 V
Vout = 3.3 V
Cout = 1.0 mF
Iout = 10 mA
20 40 60 80 100 120 140 160
Time (ms)
Figure 20. Line Transient Response
225
150
75
0
200
100
0
−100
−200
−300
0
Vin = 3.8 V
Vout = 3.3 V
Cout = 1.0 mF
Cin = 1 mF
10 20 30 40 50
Time (ms)
Figure 21. Load Transient Response
60
225
150
75
0
50
25
0
−25
−50
0
Vin = 3.8 V
Vout = 3.3 V
Cout = 10 mF
Cin = 1 mF
10 20 30 40 50 60 70 80
Time (ms)
Figure 22. Load Transient Response
90
3.0
2.0
1.0
0
4.0
3.0
2.0
1.0
0
0
Vin = 3.8 V
Vout = 3.3 V
TA = 25°C
RL = 3.3 kW
Cin = 1 mF
Cout = 10 mF
Cout = 1.0 mF
20 40
60
80 100
Time (ms)
Figure 23. Turn−off Response
120
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet NCP500.PDF ] | |
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