ADP150 데이터 시트보기 (PDF) - Analog Devices
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ADP150 Datasheet PDF : 20 Pages
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–10
IOUT = 100µA
–20
IOUT = 1mA
IOUT = 10mA
–30
IOUT = 100mA
IOUT = 150mA
–40
VIN = VOUT + 0.5V
VRIPPLE = 50mV
CIN = COUT = 1µF
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 17. Power Supply Rejection Ratio (PSRR) vs. Frequency,
VOUT = 3.3 V, VIN = 3.8 V
–10
VOUT = 1.8V, IOUT = 100µA
–20
VOUT = 2.8V, IOUT = 100µA
VOUT = 3.3V, IOUT = 100µA
–30
VOUT = 1.8V, IOUT = 150mA
VOUT = 2.8V, IOUT = 150mA
–40
VOUT = 3.3V, IOUT = 150mA
VIN = VOUT + 0.5V
VRIPPLE = 50mV
CIN = COUT = 1µF
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 18. Power Supply Rejection Ratio (PSRR) vs. Frequency
Various Output Voltages and Load Currents
–10
VIN = 3.8V, IOUT = 1mA
–20
VIN = 4.3V, IOUT = 1mA
VIN = 5.3V, IOUT = 1mA
–30
VIN = 3.8V, IOUT = 150mA
VIN = 4.3V, IOUT = 150mA
–40
VIN = 5.3V, IOUT = 150mA
VRIPPLE = 50mV
CIN = COUT = 1µF
–50
–60
–70
–80
–90
–100
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 19. Power Supply Rejection Ratio (PSRR) vs. Frequency with
Various Headroom Voltages (VIN − VOUT), VOUT = 3.3 V
ADP150
15
VOUT = 3.3V
VOUT = 2.8V
13
VOUT = 1.8V
11
9
7
5
3
1
0.001
0.01
0.1
1
10
100
1k
IOUT (mA)
Figure 20. Output RMS Noise vs. Load Current (IOUT) and
Output Voltage (VOUT), VIN = 5 V, COUT = 1 µF
1
VOUT = 1.8V
VOUT = 2.8V
VOUT = 3.3V
0.1
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 21. Output Noise Spectrum, VIN = 5 V, ILOAD = 10 mA, COUT = 1 μF
T
IOUT
1mA TO 150mA LOAD STEP
1
VOUT
2
CH1 100mA CH2 50mV
VIN = 3.7V
VOUT = 3.3V
M40µs
A CH1 112mA
T 117.560µs
Figure 22. Load Transient Response, COUT = 1 µF
Rev. A | Page 9 of 20
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