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PDF NCV8705 Data sheet ( Hoja de datos )
| Número de pieza | NCV8705 | |
| Descripción | LDO Voltage Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCV8705
500 mA, Ultra-Low
Quiescent Current, IQ 13 mA,
Ultra-Low Noise, LDO
Voltage Regulator
The NCV8705 is a low noise, low power consumption and low
dropout Linear Voltage Regulator. With its excellent noise and PSRR
specifications, the device is ideal for use in products utilizing RF
receivers, imaging sensors, audio processors or any component
requiring an extremely clean power supply. The NCV8705 uses an
innovative Adaptive Ground Current circuit to ensure ultra low
ground current during light load conditions.
Features
• Operating Input Voltage Range: 2.5 V to 5.5 V
• Available − Fixed Voltage Option: 0.8 V to 3.5 V
Available − Adjustable Voltage Option: 0.8 V to 5.5 V−VDROP
• Reference Voltage 0.8 V
• Ultra−Low Quiescent Current of Typ. 13 mA
• Ultra−Low Noise: 12 mVRMS from 100 Hz to 100 kHz
• Very Low Dropout: 230 mV Typical at 500 mA
• ±2% Accuracy Over Load/Line/Temperature
• High PSRR: 71 dB at 1 kHz
• Internal Soft−Start to Limit the Turn−On Inrush Current
• Thermal Shutdown and Current Limit Protections
• Stable with a 1 mF Ceramic Output Capacitor
• Active Output Discharge for Fast Turn−Off
• 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
Typical Applicaitons
• PDAs, Mobile Phones, GPS, Smartphones
• Wireless Handsets, Wireless LAN, Bluetooth, Zigbee
• Portable Medical Equipment
• Other Battery Powered Applications
www.onsemi.com
WDFN6
CASE 511BR
MARKING
DIAGRAM
1
XX M
XX = Specific Device Code
M = Date Code
PIN CONNECTIONS
16
2 EXP
3
5
4
WDFN6 2x2 mm
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 19 of this data sheet.
VIN
CIN
1 mF
ON
OFF
IN OUT
NCV8705
EN N/C
GND
VOUT
COUT
1 mF
VIN IN OUT
NCV8705
1 mF CIN
EN ADJ
ON GND
OFF
Fixed Voltage Version
Adjustable Voltage Version
Figure 1. Typical Application Schematic
R1 C1
R2
VOUT
COUT
1 mF
© Semiconductor Components Industries, LLC, 2014
November, 2014 − Rev. 4
1
Publication Order Number:
NCV8705/D
1 page  
NCV8705
TYPICAL CHARACTERISTICS
10
1
IOUT = 10 mA
IOUT = 500 mA
0.1
0.01
VIN = 2.5 V
VOUT = 0.8 V
CIN = COUT = 1 mF
MLCC, X7R,
1206 size
0.001
0.01 0.1
1
IOUT = 100 mA
IOUT = 300 mA
10 100 1000
IOUT
10 mA
100 mA
300 mA
500 mA
RMS Output Noise (mV)
10 Hz − 100 kHz 100 Hz − 100 kHz
19.06
15.99
14.42
13.70
18.21
15.04
13.39
12.60
FREQUENCY (kHz)
Figure 3. Output Voltage Noise Spectral Density for VOUT = 0.8 V, COUT = 1 mF
10
1
0.1
0.01
VIN = 2.5 V
VOUT = 0.8 V
CIN = 1 mF
COUT = 10 mF
MLCC, X7R,
1206 size
0.001
0.01
0.1
IOUT = 100 mA
IOUT = 10 mA
IOUT = 500 mA
IOUT = 300 mA
1 10 100 1000
IOUT
10 mA
100 mA
300 mA
500 mA
RMS Output Noise (mV)
10 Hz − 100 kHz 100 Hz − 100 kHz
16.17
15.28
16.41
15.65
14.94
14.08
14.10
13.11
FREQUENCY (kHz)
Figure 4. Output Voltage Noise Spectral Density for VOUT = 0.8 V, COUT = 10 mF
10
1 IOUT = 100 mA
IOUT = 300 mA
0.1
0.01
VIN = 3.8 V
VOUT = 3.3 V
CIN = COUT = 1 mF
MLCC, X7R,
1206 size
0.001
0.01
0.1
1
IOUT = 500 mA
IOUT = 10 mA
10 100 1000
IOUT
10 mA
100 mA
300 mA
500 mA
RMS Output Noise (mV)
10 Hz − 100 kHz 100 Hz − 100 kHz
18.12
16.42
15.39
13.50
16.35
16.00
12.47
12.10
FREQUENCY (kHz)
Figure 5. Output Voltage Noise Spectral Density for VOUT = 3.3 V, COUT = 1 mF
www.onsemi.com
5
5 Page 
NCV8705
TYPICAL CHARACTERISTICS
400
VIN = 3.8 V
390 VOUT = 3.3 V
380 COUT = 1 mF
370
CIN = 1 mF
MLCC, X7R,
360 1206 size
350
340
330
320
310
300
−40 −20 0 20 40 60 80 100 120 140
TJ, JUNCTION TEMPERATURE (°C)
Figure 33. Discharge Resistance vs.
Temperature
80
IOUT = 10 mA
70 IOUT = 100 mA
IOUT = 300 mA
60 IOUT = 500 mA
50
40
30 VIN = 2.8 V + 100 mVPP
VOUT = 1.8 V
20 COUT = 1 mF
CIN = none
10 MLCC, X7R,
1206 size
0
0.01 0.1
1
10
100 1k 10k
FREQUENCY (kHz)
Figure 35. Power Supply Rejection Ratio,
VOUT = 1.8 V
100
IOUT = 10 mA
90 IOUT = 100 mA
80 IOUT = 300 mA
70 IOUT = 500 mA
60
50
40 VIN = 4.3 V + 100 mVPP
30 VOUT = 3.3 V
COUT = 1 mF
20 CIN = none
10 MLCC, X7R,
1206 size
0
0.01 0.1
1
10
100 1k 10k
FREQUENCY (kHz)
Figure 37. Power Supply Rejection Ratio,
VOUT = 3.3 V
250
240
230
220
210
200
190 VIN = 3.8 V
VOUT = 3.3 V
180 COUT = 1 mF
170 CIN = 1 mF
MLCC, X7R,
160 1206 size
150
−40 −20 0 20 40 60 80 100 120 140
TJ, JUNCTION TEMPERATURE (°C)
Figure 34. Start−up Time vs. Temperature
90
80
IOUT = 10 mA
IOUT = 100 mA
70 IOUT = 300 mA
IOUT = 500 mA
60
50
40
VIN = 3.8 V + 100 mVPP
30 VOUT = 2.8 V
20
COUT = 1 mF
CIN = none
10 MLCC, X7R,
1206 size
0
0.01 0.1 1 10 100 1k 10k
FREQUENCY (kHz)
Figure 36. Power Supply Rejection Ratio,
VOUT = 2.8 V
90
80
70
60
50
40
VIN = 4.3 V + 100 mVPP
30 VOUT = 3.3 V
20 CIN = none
MLCC, X7R,
10 1206 size
0
0.01 0.1 1 10
COUT = 1 mF
COUT = 4.7 mF
COUT = 10 mF
100 1k 10k
FREQUENCY (kHz)
Figure 38. Power Supply Rejection Ratio,
VOUT = 3.3 V, IOUT = 10 mA − Different COUT
www.onsemi.com
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet NCV8705.PDF ] | |
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