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)： 9/19頁
文件大小： 460K
代理商： AS1367-BTDT-12
www.austriamcrosystems.com
Revision 1.4
9 - 19
AS1367
Datasheet - Detailed Description
8 Detailed Description
Figure 16
shows the block diagramof the AS1367. 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 16
) is compared with an attenuated sample of the output voltage. Any difference
between the two voltages (reference and sample) creates an output fromthe error amplifier that drives the series control element to reduce the
difference to a mnimum 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.
The AS1367 is low-dropout, low-quiescent-current linear regulator intended for LDO regulator applications where output current load
requirements range fromno load to 150mA. All devices come standard with adjustable output voltages of 1.2V to 5.0V and fixed output voltages.
An additional feature of the AS1367 adapts the bias current of the control loop to the load current. At low load currents the control loop bias
current is small. As the load current increases, the bias current tracks the increase in order to improve the regulator transient performance.
Efficiency is improved at low load currents because of this feature.
All devices are able to override the internally trimmed output voltage by using the SET pin. Connecting an external voltage divider to this pin
converts the part fromfixed to an adjustable version. The SET voltage threshold above which the changeover occurs is 100mV. For fixed output
variants, see
Ordering Information on page 18
.
Figure 16. AS1367 Block Diagram
8.1 Output Voltages
Standard products are factory-set with output voltages from1.2V to 5.0V. A two-digit suffix of the part number identifies the nomnal output
(see
Ordering Information on page 18)
. Non-standard devices are available.
http://wwwaustriamcrosystems.com/contact
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?。?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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