参数资料
| 型号： | AS1369-BWLT-33 |
| 厂商： | ams |
| 文件页数： | 14/22页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .2A 4WLCSP |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 5.5V |
| 电压 - 压降（标准）： | 0.08V @ 200mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 200mA |
| 电流 - 限制（最小）： | 210mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 4-UFBGA，WLCSP |
| 供应商设备封装： | 4-WLCSP |
| 包装： | 标准包装 |
| 其它名称： | AS1369-BWLT-33DKR |
AS1369
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8 Application Information
Figure 46. Typical Application Diagram
V IN
V OUT
C1
EN
V REF
On/Off
Control
_
+
Thermal &
Over Current
Protection
GND
C2
Figure 46 shows the block diagram of the AS1369. It identifies the basics of a series linear regulator employing a P-Channel MOSFET as the
control element. A stable voltage reference (REF in Figure 46 ) is compared with an attenuated sample of the output voltage. Any difference
between the two voltages (reference and sample) creates an output from the error amplifier that drives the series control element to reduce the
difference to a minimum. The error amplifier incorporates additional buffering to drive the relatively large gate capacitance of the series pass P-
channel MOSFET, when additional drive current is required under transient conditions. Input supply variations are absorbed by the series
element, and output voltage variations with loading are absorbed by the low output impedance of the regulator.
8.1 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 load currents, but is usually specified at maximum output. As a
result, the MOSFET maximum series resistance over temperature is obtained. More generally:
V DROPOUT = I LOAD x 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.
(EQ 2)
www.austriamicrosystems.com/LDOs/AS1369
Revision 1.7
13 - 21
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1369-BWLT-33-10K | 制造商:AMS 功能描述:IC REG LDO 3.3V 0.2A 4WLCSP |
| AS1369BWLT33-10K | 制造商:AMS 功能描述:IC REG LDO 3.3V 0.2A 4WLCSP |
| AS1369BWLT33-1K | 制造商:AMS 功能描述:IC REG LDO 3.3V 0.2A 4WLCSP |
| AS1369-BWLT-45 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:200mA Ultra-Compact Low Dropout Regulator |
| AS1369-BWLT-50 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:200mA Ultra-Compact Low Dropout Regulator |
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