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| 型号： | AS1364-BTDT-AD |
| 厂商： | AUSTRIAMICROSYSTEMS AG |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1A LDO, Low Noise |
| 文件页数： | 12/19页 |
| 文件大小： | 787K |
| 代理商： | AS1364-BTDT-AD |
AS1364
Datasheet - Application Information
www.austriamicrosystems.com
Revision 1.8
12 - 19
9.3 Power Dissipation
Maximum power dissipation (PD) of the LDO is the sum of the power dissipated by the internal series MOSFET and the quiescent current
required to bias the internal voltage reference and the internal error amplifier, and is calculated as:
Watts
(EQ 5)
Internal power dissipation as a result of the bias current for the internal voltage reference and the error amplifier is calculated as:
Watts
(EQ 6)
Total LDO power dissipation is calculated as:
Watts
(EQ 7)
9.4 Junction Temperature
Under all operating conditions, the maximum junction temperature should not be allowed to exceed 125oC (unless the data sheet specifically
allows). Limiting the maximum junction temperature requires knowledge of the heat path from junction to case (
JC
oC/W fixed by the IC
manufacturer), and adjustment of the case to ambient heat path (
CA
oC/W) by manipulation of the PCB copper area adjacent to the IC position.
Figure 19. Package Physical Arrangements
Figure 20. Steady State Heat Flow Equivalent Circuit
PD
MAX
Seriespass
I
LOAD MAX
=
V
IN MAX
V
OUT MIN
–
PD
MAX
Bias
V
IN MAX
I
Q
=
PD
MAX
Total
PD
MAX
Seriespass
PD
MAX
+
Bias
=
Package
Lead Frame
PCB
Exposed Pad
Chip
TDFN Package
Bond Wire
Junction
T
J
°C
Package
T
C
°C
PCB/Heatsink
T
S
°C
Ambient
T
A
°C
Chip
Power
R
JC
R
CS
R
SA
相关PDF资料 |
PDF描述 |
|---|---|
| AS1367-BTDT-12 | Adaptive LDO |
| AS1367-BTDT-18 | Adaptive LDO |
| AS1367-BTDT-30 | Adaptive LDO |
| AS1367-BTDT-33 | Adaptive LDO |
| AS1367-BTDT-45 | Adaptive LDO |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1364-BTDT-AD EB | 制造商:ams 功能描述:Evaluation Board |
| AS1364-BTDT-AD-1k | 功能描述:低压差控制器 - LDO RoHS:否 制造商:Micrel 最大输入电压:5.5 V 输出电压:Adjustable 输出电流:10 mA 负载调节: 输出类型:Adjustable, Fixed 输出端数量:1 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-6 |
| AS1364-TD-18_EK_ST | 功能描述:AS1364 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:1A 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:AS1364 标准包装:1 |
| AS1364-TD-45_EK_ST | 功能描述:AS1364 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:1A 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:AS1364 标准包装:1 |
| AS1364-TD-AD_EK_ST | 功能描述:AS1364 1 - Single Channels per IC Positive Adjustable 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:1A 电压 - 输入:2 V ~ 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 所含物品:板 使用的 IC/零件:AS1364 标准包装:1 |
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