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參數(shù)資料
| 型號： | AS1358-BTTT-45 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 4.5V |
| 封裝： | TSOT23-5 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 900K |
| 代理商： | AS1358-BTTT-45 |
www.austriamicrosystems.com
Revision 1.5
10 - 16
AS1358 / AS1359
Datasheet - Application Information
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 3)
Internal power dissipation as a result of the bias current for the internal voltage reference and the error amplifier is calculated as:
Watts
(EQ 4)
Total LDO power dissipation is calculated as:
Watts
(EQ 5)
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 20. Package Physical Arrangements
Figure 21. 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
=
Bond Wire
Chip
PCB
Package
Lead Frame
SOTxx Package
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
相關PDF資料 |
PDF描述 |
|---|---|
| AS1360-18-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 1.8V |
| AS1360-21-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 2.1V |
| AS1360-25-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 2.5V |
| AS1360-30-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 3.0V |
| AS1360-33-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 3.3V |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AS1359 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:150mA/300mA, Ultra-Low-Noise, High-PSRR Low Dropout Regulators |
| AS1359-15 EB | 制造商:AMS 功能描述:BOARD EVAL FOR AS1359-15 |
| AS1359-15-EB | 制造商:ams 功能描述:AS1359 Evaluation Board |
| AS1359-18 EB | 制造商:AMS 功能描述:BOARD EVAL FOR AS1359-18 |
| AS1359-18-EB | 制造商:ams 功能描述:AS1359 Evaluation Board |
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