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參數(shù)資料
| 型號： | AS1367-BTDT-12 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Adaptive LDO |
| 文件頁數(shù)： | 12/19頁 |
| 文件大小： | 460K |
| 代理商： | AS1367-BTDT-12 |
www.austriamcrosystems.com
Revision 1.4
12 - 19
AS1367
Datasheet - Application Information
Total Thermal Path Resistance:
(EQ 6)
Junction Temperature (T
J
oC) is determned by:
oC
(EQ 7)
9.5 Explanation of Steady State Specifications
9.5.1 Line Regulation
Line regulation is defined as the change in output voltage when the input (or line) voltage is changed by a known quantity. It is a measure of the
regulator’s ability to maintain a constant output voltage when the input voltage changes. Line regulation is a measure of the DC open loop gain
of the error amplifier. More generally:
Line Regulation =
and is a pure number
In practise, line regulation is referred to the regulator output voltage in terms of % / V
OUT
. This is particularly useful when the same regulator is
available with numerous output voltage trimoptions.
Line Regulation =
% / V
(EQ 8)
9.5.2 Load Regulation
Load regulation is defined as the change of the output voltage when the load current is changed by a known quantity. It is a measure of the
regulator’s ability to maintain a constant output voltage when the load changes. Load regulation is a measure of the DC closed loop output
resistance of the regulator. More generally:
Load Regulation =
and is units of ohms (
)
(EQ 9)
In practise, load regulation is referred to the regulator output voltage in terms of % / mA. This is particularly useful when the same regulator is
available with numerous output voltage trimoptions.
Load Regulation =
% / mA
(EQ 10)
9.5.3 Setting Accuracy
Accuracy of the final output voltage is determned by the accuracy of the ratio of R1 and R2, the reference accuracy and the input offset voltage
of the error amplifier. When the regulator is supplied pre-trimmed, the output voltage accuracy is fully defined in the output voltage specification.
When the regulator has a SET termnal, the output voltage may be adjusted externally. In this case, the tolerance of the external resistor network
must be incorporated into the final accuracy calculation. Generally:
(EQ 11)
The reference tolerance is given both at 25oC and over the full operating temperature range.
For AS1367, the reference point for V
SET
is 1V
±
2%.
9.5.4 Total Accuracy
Away fromdropout, total steady state accuracy is the sumof setting accuracy, load regulation and line regulation. Generally:
Total % Accuracy = Setting % Accuracy + Load Regulation % + Line Regulation %
(EQ 12)
R
JA
R
JC
R
CS
R
SA
+
+
=
T
J
PD
MAX
R
JA
T
AMB
+
=
V
V
IN
----------------
V
V
IN
----------------
V
OUT
--100
V
I
OUT
----------------
V
I
OUT
----------------
V
OUT
----100
V
OUT
V
SET
V
SET
=
1
1
R
1
R
2
R
2
R
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1367-BTDT-18 | Adaptive LDO |
| AS1367-BTDT-30 | Adaptive LDO |
| AS1367-BTDT-33 | Adaptive LDO |
| AS1367-BTDT-45 | Adaptive LDO |
| AS1369-BWLT-18 | 200mA Micro-Sized; Package Type: CS-WLP(1x1)-4; Output Range: 1.8V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1367-BTDT-18 | 功能描述:IC REG LDO 1.8V .15A 8-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:300mA（最小值） 電流 - 限制（最小）:360mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:帶卷 (TR) |
| AS1367-BTDT-30 | 功能描述:低壓差控制器 - LDO RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負(fù)載調(diào)節(jié): 輸出類型:Adjustable, Fixed 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| AS1367BTDT33 | 制造商:ams 功能描述:T&R / TDFN 2x2 8 |
| AS1367-BTDT-33 | 功能描述:低壓差控制器 - LDO RoHS:否 制造商:Micrel 最大輸入電壓:5.5 V 輸出電壓:Adjustable 輸出電流:10 mA 負(fù)載調(diào)節(jié): 輸出類型:Adjustable, Fixed 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-6 |
| AS1367-BTDT-45 | 功能描述:IC REG LDO 4.5V .15A 8-TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標(biāo)準(zhǔn)）:- 穩(wěn)壓器數(shù)量:1 電流 - 輸出:300mA（最小值） 電流 - 限制（最小）:360mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:帶卷 (TR) |
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