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参数资料
| 型号： | ADP125-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION ADJUSTABLE V |
| 标准包装： | 1 |
| 每 IC 通道数： | 1 - 单 |
| 输出电压： | 0.8 ~ 5 V |
| 电流 - 输出： | 500mA |
| 输入电压： | 2.3 ~ 5.5 V |
| 稳压器类型： | 正，可调式 |
| 工作温度： | -40°C ~ 85°C |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP125 |
ADP124/ADP125
Data Sheet
Parameter
OUTPUT NOISE
Symbol
OUT NOISE
Test Conditions
10 Hz to 100 kHz, V IN = 5.5 V, V OUT = 1.2 V
Min
Typ
25
Max
Unit
μV rms
10 Hz to 100 kHz, V IN = 5.5 V, V OUT = 1.8 V
10 Hz to 100 kHz, V IN = 5.5 V, V OUT = 2.5 V
10 Hz to 100 kHz, V IN = 5.5 V, V OUT = 3.3 V
10 Hz to 100 kHz, V IN = 5.5 V, V OUT = 4.2V
35
45
55
65
μV rms
μV rms
μV rms
μV rms
POWER SUPPLY REJECTION RATIO
(V IN = V OUT +1V)
PSRR
10 kHz to 100 kHz, V OUT = 1.8 V, 2.5 V, 3.3 V
60
dB
1
2
3
4
5
6
The current from the external resistor divider network in the case of adjustable voltage output (as with the ADP125) should be subtracted from the ground current measured.
Accuracy when VOUT is connected directly to ADJ. When VOUT voltage is set by external feedback resistors, absolute accuracy in adjust mode depends on the tolerances of
the resistors used.
Based on an endpoint calculation using 1 mA and 500 mA loads.
Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output voltages
greater than 2.3 V.
Start-up time is defined as the time between the rising edge of EN to VOUT being at 90% of its nominal value.
Current limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.3 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.3 V, or 2.97 V.
RECOMMENDED CAPACITOR SPECIFICATIONS
Table 2.
Parameter
Minimum Input and Output
Capacitance 1
Capacitor ESR
Symbol
CAP MIN
R ESR
Test Conditions
T A = ?40°C to +125°C
T A = ?40°C to +125°C
Min
0.70
0.001
Typ
Max
1
Unit
μF
Ω
1
The minimum input and output capacitance should be greater than 0.70 μF over the full range of operating conditions. The full range of operating conditions in the
application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended;
Y5V and Z5U capacitors are not recommended for use with this LDO.
Rev. C | Page 4 of 20
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