參數(shù)資料
型號(hào): ADP124ARHZ-2.8-R7
廠商: ANALOG DEVICES INC
元件分類: 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器
英文描述: 5.5V INPUT, 500 MA, LOW QUIESCENT CURRENT, CMOS LINEAR REGULATOR W/31 FIXED-OUTPUT VOLTAGES No of Pins: 8 Temperature Range: Ind
中文描述: 2.8 V FIXED POSITIVE LDO REGULATOR, 0.23 V DROPOUT, PDSO8
封裝: ROHS COMPLIANT, MO-187AAT, MSOP-8
文件頁(yè)數(shù): 20/20頁(yè)
文件大?。?/td> 648K
代理商: ADP124ARHZ-2.8-R7
ADP124/ADP125
Rev. A | Page 9 of 20
–100
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–60
–50
–40
–30
–20
–10
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
P
S
RR
(
d
B)
IOUT = 100A
VIN = VOUT + 1V
VRIPPLE = 50mV
CIN = COUT = 1F
IOUT = 1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 300mA
IOUT = 500mA
08476-
017
Figure 19. Power Supply Rejection Ratio vs. Frequency, VOUT= 4.2 V, VIN = 5.2 V
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–90
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–60
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–20
–10
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
P
S
RR
(
d
B)
VOUT = 2.8V, IOUT = 10mA
VIN = VOUT + 1V
VRIPPLE = 50mV
CIN = COUT = 1F
VOUT = 3.3V, IOUT = 10mA
VOUT = 4.2V, IOUT = 10mA
VOUT = 2.8V, IOUT = 500mA
VOUT = 3.3V, IOUT = 500mA
VOUT = 4.2V, IOUT = 500mA
08476-
018
Figure 20. Power Supply Rejection Ratio vs. Frequency,
Various Output Voltages and Load Currents
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–90
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–60
–50
–40
–30
–20
–10
10
100
1k
10k
100k
1M
10M
P
S
RR
(
d
B)
FREQUENCY (Hz)
VIN = 3.1V, IOUT = 10mA
VIN = 3.3V, IOUT = 10mA
VIN = 3.8V, IOUT = 10mA
VIN = 4.8V, IOUT = 10mA
VIN = 3.1V, IOUT = 500mA
VIN = 3.3V, IOUT = 500mA
VIN = 3.8V, IOUT = 500mA
VIN = 4.8V, IOUT = 500mA
08476-
019
Figure 21. Power Supply Rejection Ratio vs. Headroom Voltage (VIN VOUT),
VOUT = 2.8 V
0
1
2
3
4
5
10
100
1k
10k
100k
FREQUENCY (Hz)
N
O
ISE
(
v
/√
H
z
)
08476-
020
VOUT = 2.8V
VOUT = 3.3V
VOUT = 4.2V
Figure 22. Output Noise Spectrum, VIN = 5 V
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0.001
0.01
0.1
1
10
100
1k
ILOAD (mA)
R
MS
N
O
ISE
(
V)
VOUT = 2.8V
VOUT = 3.3V
VOUT = 4.2V
08476-
021
Figure 23. Output Noise vs. Load Current and Output Voltage, VIN = 5 V
08476-
022
M40.0s A CH1
200mA
1
2
T
9.800%
VIN = 4V
VOUT = 3.3V
VOUT
1mA TO 500mA LOAD STEP
CH1 500mA
B
W
CH2 50.0mV
B
W
IOUT
Figure 24. Load Transient Response, COUT = 1 μF
相關(guān)PDF資料
PDF描述
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