参数资料
型号: ADP122AUJZ-2.7-R7
厂商: Analog Devices Inc
文件页数: 9/24页
文件大小: 0K
描述: IC REG LDO 2.7V .3A 5TSOT
标准包装: 1
稳压器拓扑结构: 正,固定式
输出电压: 2.7V
输入电压: 最高 5.5V
电压 - 压降(标准): 0.085V @ 300mA
稳压器数量: 1
电流 - 输出: 300mA(最小值)
电流 - 限制(最小): 350mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT-23-5
包装: 标准包装
产品目录页面: 792 (CN2011-ZH PDF)
其它名称: ADP122AUJZ-2.7-R7DKR
Data Sheet
–10
–20
5
ADP122/ADP123
–30
I OUT = 100μA
I OUT = 1mA
4
V OUT = 4.2V
–40
–50
I OUT = 10mA
I OUT = 100mA
I OUT = 200mA
I OUT = 300mA
3
V OUT = 3.3V
–60
2
–70
–80
–90
V IN = V OUT + 0.5V
V RIPPLE = 50mV
1
V OUT = 2.8V
–100
10
C IN = C OUT 1μF
100 1k
10k 100k
FREQUENCY (Hz)
1M
10M
0
10
100
1k
FREQUENCY (Hz)
10k
100k
Figure 21. Power Supply Rejection Ratio vs. Frequency, V OUT = 4.2 V, V IN = 4.7 V
–10
70
Figure 24. Output Noise Spectrum
–20
–30
–40
–50
V OUT = 2.8V,
V OUT = 3.3V,
V OUT = 4.2V,
V OUT = 2.8V,
V OUT = 3.3V,
V OUT = 4.2V,
I OUT = 1mA
I OUT = 1mA
I OUT = 1mA
I OUT = 300mA
I OUT = 300mA
I OUT = 300mA
65
60
55
V OUT = 4.2V
V OUT = 3.3V
50
–60
–70
45
V OUT = 2.8V
–80
–90
–100
V IN = V OUT + 0.5V
V RIPPLE = 50mV
C IN = C OUT 1μF
40
35
30
10
100
1k
10k
100k
1M
10M
0.001
0.01
0.1
1
10
100
1000
FREQUENCY (Hz)
Figure 22. Power Supply Rejection Ratio vs. Frequency, Various Output
Voltages and Load Currents
–10
I OUT (mA)
Figure 25. Output Noise vs. Load Current and Output Voltage
–20
–30
–40
V IN = 3.1V,
V IN = 3.3V,
V IN = 3.8V,
V IN = 4.8V,
V IN = 3.1V,
V IN = 3.3V,
V IN = 3.8V,
V IN = 4.8V,
I OUT = 1mA
I OUT = 1mA
I OUT = 1mA
I OUT = 1mA
I OUT = 300mA
I OUT = 300mA
I OUT = 300mA
I OUT = 300mA
1
I OUT
1mA TO 300mA LOAD STEP
–50
–60
–70
–80
–90
V RIPPLE = 50mV
C IN = C OUT 1μF
2
V OUT
V IN = 3.7V
V OUT = 3.3V
–100
10
100
1k
10k 100k
FREQUENCY (Hz)
1M
10M
CH1 200mA ?
B
W CH2
50.0mV
B
W
M 40.0μs A CH1
T 10.20%
196mA
Figure 23. Power Supply Rejection Ratio vs. Headroom Voltage (V IN ? V OUT ),
V OUT = 2.8 V
Rev. E | Page 9 of 24
Figure 26. Load Transient Response, C OUT = 1 μF
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