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PDF NCV8537 Data sheet ( Hoja de datos )
| Número de pieza | NCV8537 | |
| Descripción | 500mA High Accuracy Low Dropout Linear Regulator | |
| Fabricantes | ON Semiconductor | |
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NCV8537
500 mA High Accuracy Low
Dropout Linear Regulator,
with Power Good Function
The NCV8537 is a high performance low dropout linear voltage
regulator. Based on the popular NCV8535, the device retains all the
best features of its predecessor which includes high accuracy,
excellent stability, low noise performance and reverse bias protection
but now includes a Power Good output signal to enable monitoring of
the supply system. The device is available with fixed or adjustable
outputs and is packaged in a 10 pin 3x3 mm DFN package.
Features
High Accuracy Output Over Line and Load Variances (0.9% at
25C)
Operating Temperature Range: −40C to 125C
Power Good Output to Indicate the Regulator is Within Specified
Limits
Stable Output with Low Value Capacitors of any type and with no
Minimum Load Current Requirement
Incorporates Current Limiting and Reverse Bias Protection
Thermal Shutdown Protection
Low Dropout Voltage at Full Load (340 mV typ at Vo = 3.3 V)
Low Noise (33 mVrms w/ 10 nF Cnr and 52 mVrms w/out Cnr)
Low Shutdown Current (< 1 mA)
Reverse Bias Protected
2.9 V to 12 V Supply Range
Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V and Adjustable Output
Voltages
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These are Pb−Free Devices
Applications
Networking Systems, DSL/Cable Modems
Audio Systems for Automotive Applications
Navigation Systems
Satellite Receivers
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DFN10
MN SUFFIX
CASE 485C
PIN CONFIGURATION
Pin 1, 2. Vout
3. Sense / ADJ
4. GND
5. PWRG
6. NC
7. NR
8. SD
9, 10. Vin
EP, GND
MARKING DIAGRAM
1 V8537
xxx
ALYWG
G
xxx = Specific Device Marking
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 15 of this data sheet.
Semiconductor Components Industries, LLC, 2013
May, 2013 − Rev. 2
1
Publication Order Number:
NCV8537/D
1 page  
NCV8537
ELECTRICAL CHARACTERISTICS − 1.8 V
(Vout = 1.8 V typical, Vin = 2.9 V, TA = −40C to +125C, unless otherwise noted, Note 2)
Characteristic
Symbol
Min
Typ
Max Unit
Output Voltage (Accuracy)
Vin = 2.9 V to 5.8 V, Iload = 0.1 mA to 500 mA, TA = 25C
Output Voltage (Accuracy)
Vin = 2.9 V to 5.8 V, Iload = 0.1 mA to 500 mA, TA = 0C to +85C
Vout −0.9% 1.8 +0.9% V
1.783
1.817
Vout −1.4% 1.8 +1.4% V
1.774
1.826
Output Voltage (Accuracy)
Vin = 2.9 V to 5.8 V, Iload = 0.1 mA to 500 mA, TA = −40C to +125C
Minimum Input Voltage
Line Regulation
Vin = 2.9 V to 12 V, Iload = 0.1 mA
Load Regulation
Vin = 2.9 V, Iload = 0.1 mA to 500 mA
Dropout Voltage (See Figure 9)
Iload = 500 mA (Notes 3, 4)
Iload = 300 mA (Notes 3, 4)
Iload = 50 mA (Notes 3, 4)
Peak Output Current (See Figures 14 and 17)
Short Output Current (See Figure 14) Vin < 7 V, TA = 25C
Thermal Shutdown / Hysteresis
Ground Current
In Regulation
Iload = 500 mA (Note 3)
Iload = 300 mA (Note 3)
IIllooaadd
=
=
50 mA
0.1 mA
Vout
Vinmin
LineReg
−1.5%
1.773
1.8
2.9
0.04
+1.5%
1.827
V
V
mV/V
LoadReg
0.04
mV/mA
VDO
Ipk
Isc
TJ
IGND
620
230
95
500 700 830
900
160/10
9.0 14
4.6 7.5
0.8 2.5
− 220
mV
mA
mA
C
mA
mA
In Dropout
Vin = 2.2 V, Iload = 0.1 mA
500 mA
In Shutdown
VSD = 0 V
Output Noise
Cnr = 0 nF, Iload = 500 mA, f = 10 Hz to 100 kHz, Cout = 10 mF
Cnr = 10 nF, Iload = 500 mA, f = 10 Hz to 100 kHz, Cout = 10 mF
Power Good Voltage
Low Threshold
Hysteresis
High Threshold
IGNDsh
Vnoise
Velft
93
1.0 mA
52 mVrms
33 mVrms
% of
95 Vout
2
97 99
Power Good Pin Voltage Saturation (Ief − 1.0 mA)
Power Good Pin Leakage
Power Good Blanking Time (Note 7)
Shutdown
Threshold Voltage ON
Threshold Voltage OFF
Vefdo 200 mV
Iefleak
1.0
mA
tef 50 ms
VSD
2.0
V
0.4 V
SD Input Current, VSD = 0 V to 0.4 V or VSD = 2.0 V to Vin
ISD
0.07 1.0
mA
Output Current In Shutdown Mode, Vout = 0 V
IOSD
0.07 1.0
mA
Reverse Bias Protection, Current Flowing from the Output Pin to GND
(Vin = 0 V, Vout_forced = 1.8 V)
IOUTR
10
mA
2. Performance guaranteed over the operating temperature range by design and/or characterization, production tested at TJ = TA = 25C. Low
duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
3. TA must be greater than 0C.
4. Maximum dropout voltage is limited by minimum input voltage Vin = 2.9 V recommended for guaranteed operation.
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5
5 Page 
NCV8537
400
350
300 500 mA
250
300 mA
200
150 50 mA
100
50
00 20 40 60 80 100 120 140
TA, TEMPERATURE (C)
Figure 11. Dropout Voltage vs. Temperature
3.3 V Version
350
300 500 mA
250
300 mA
200
150
50 mA
100
50
00 20 40 60 80 100 120 140
TA, TEMPERATURE (C)
Figure 12. Dropout Voltage vs. Temperature
5.0 V Version
1000
900
800 Isc
700
600 Ipk
500
400
300
200 VIN = 2.9 V
100 VOUT = 1.8 V
0
0 20 40 60 80 100 120 140
TA, TEMPERATURE (C)
Figure 13. Peak and Short Current
vs. Temperature
12
VIN = 2.9 V
10 VOUT = 1.8 V
8 500 mA
6
300 mA
4
2
50 mA
0
0 20 40 60 80 100 120 140
TA, TEMPERATURE (C)
Figure 15. Ground Current vs. Temperature
0.97 Vout
Iout (mA)
Ipk Isc
(For specific values of Ipk and Isc, please refer to Figure 13)
Figure 14. Output Voltage vs. Output Current
12
VIN = 2.9 V
10 VOUT = 1.8 V
TA = 25C
8
6
4
2
0 0 0.1 0.2 0.3 0.4 0.5
IOUT, OUTPUT CURRENT (A)
Figure 16. Ground Current vs. Output Current
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| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet NCV8537.PDF ] | |
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