参数资料
| 型号： | AS1363-BSTT-AD |
| 厂商： | ams |
| 文件页数： | 11/19页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A SOT23-6 |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 1.2 V ~ 5.3 V |
| 输入电压： | 2 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.15V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 带卷 (TR) |
AS1363
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
9 Application Information
9.1 Dropout Voltage
Dropout is the input to output voltage difference, below which the linear regulator ceases to regulate. At this point, the output voltage change
follows the input voltage change. Dropout voltage may be measured at different currents and, in particular at the regulator maximum one. From
this is obtained the MOSFET maximum series resistance over temperature etc. More generally:
V DROPOUT = I LOAD ? R SERIES
Dropout is probably the most important specification when the regulator is used in a battery application. The dropout performance of the
regulator defines the useful “end of life” of the battery before replacement or re-charge is required.
Figure 18. Graphical Representation of Dropout Voltage
V IN
(EQ 2)
V OUT
Dropout
V IN = V OUT(TYP) + 0.5V
V IN
V OUT
Voltage
V OUT
100mV
V IN
Figure 18 shows the variation of V OUT as V IN is varied for a certain load current. The practical value of dropout is the differential voltage (V OUT -
V IN ) measured at the point where the LDO output voltage has fallen by 100mV below the nominal, fully regulated output value. The nominal
regulated output voltage of the LDO is that obtained when there is 500mV (or greater) input-output voltage differential.
9.2 Efficiency
Low quiescent current and low input-output voltage differential are important in battery applications amongst others, as the regulator efficiency is
directly related to quiescent current and dropout voltage. Efficiency is given by:
Efficiency = --------------------------------------- ? 100 %
Where:
I Q = Quiescent current of LDO measured at VBIAS.
V ? I
LOAD LOAD
V IN ? I Q + I LOAD ?
(EQ 3)
www.ams.com/LDO
Revision 1.9
11 - 19
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相关代理商/技术参数 |
参数描述 |
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| AS1363-ST-15_EK_ST | 功能描述:AS1363 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board 制造商:ams 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:1.5V 电流 - 输出:500mA 电压 - 输入:2 V ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1363 标准包装:1 |
| AS1363-ST-18_EK_ST | 功能描述:AS1363 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board 制造商:ams 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:1.8V 电流 - 输出:500mA 电压 - 输入:2 V ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1363 标准包装:1 |
| AS1363-ST-30_EK_ST | 功能描述:AS1363 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board 制造商:ams 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:3V 电流 - 输出:500mA 电压 - 输入:2 V ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1363 标准包装:1 |
| AS1363-ST-33_EK_ST | 功能描述:AS1363 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board 制造商:ams 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:3.3V 电流 - 输出:500mA 电压 - 输入:2 V ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1363 标准包装:1 |
| AS1363-ST-45_EK_ST | 功能描述:AS1363 1 - Single Channels per IC Positive Fixed Linear Voltage Regulator Evaluation Board 制造商:ams 系列:- 零件状态:有效 每 IC 通道数:1 - 单 电压 - 输出:4.5V 电流 - 输出:500mA 电压 - 输入:2 V ~ 5.5 V 稳压器类型:正，固定式 工作温度:-40°C ~ 85°C 板类型:完全填充 所含物品:板 使用的 IC/零件:AS1363 标准包装:1 |
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