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| 型号： | ADP170-1.8-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL ADP170 1.8V |
| 标准包装： | 1 |
| 每 IC 通道数： | 1 - 单 |
| 输出电压： | 1.8V |
| 电流 - 输出： | 300mA |
| 输入电压： | 1.6 ~ 3.6V |
| 稳压器类型： | 正，固定式 |
| 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： | ADP170 |
ADP170/ADP171
Data Sheet
Parameter
OUTPUT NOISE
Symbol
OUT NOISE
Conditions
10 Hz to 100 kHz, V IN = 3.6 V, V OUT = 3.0 V
Min
Typ
72
Max
Unit
μV rms
10 Hz to 100 kHz, V IN = 3.6 V, V OUT = 1.8 V
10 Hz to 100 kHz, V IN = 3.6 V, V OUT = 1.2 V
10 Hz to 100 kHz, V IN = 3.6 V, V OUT = 0.8 V
50
40
30
μV rms
μV rms
μV rms
POWER SUPPLY REJECTION RATIO
PSRR
1 kHz, V IN = 3.6 V, I OUT = 10 mA, V OUT = 0.8 V
10 kHz, V IN = 3.6 V, I OUT = 10 mA, V OUT = 0.8 V
10 kHz, V IN = (V OUT + 1 V), I OUT = 10 mA to 300 mA
100 kHz, V IN = (V OUT + 1 V), I OUT = 10 mA to 300 mA
73
70
50
47
dB
dB
dB
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 ADP171 ) should be subtracted from the ground current measured.
Accuracy when VOUT is connected directly to ADJ. When the VOUT voltage is set by external feedback resistors, the absolute accuracy in adjust mode depends on the
tolerances of resistors used.
Based on an end-point calculation using 1 mA and 300 mA loads. See Figure 6 for typical load regulation performance for loads less than 1 mA.
Applies only for output voltages above 1.6 V. Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal
output voltage.
Start-up time is defined as the time between the rising edge of EN and 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 3.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter
MINIMUM INPUT AND OUTPUT
CAPACITANCE 1
CAPACITOR ESR
Symbol
C MIN
R ESR
Conditions
T J = ?40°C to +125°C
T J = ?40°C to +125°C
Min
0.45
0.001
Typ
Max
1
Unit
μF
Ω
1
The minimum input and output capacitance should be greater than 0.45 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 any LDO.
Rev. C | Page 4 of 20
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