- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381304 > AS1358-BTTT-28 (AUSTRIAMICROSYSTEMS AG) 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 2.8V PDF資料下載
參數(shù)資料
| 型號： | AS1358-BTTT-28 |
| 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: 2.8V |
| 封裝： | TSOT23-5 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 900K |
| 代理商： | AS1358-BTTT-28 |
www.austriamicrosystems.com
Revision 1.5
8 - 16
AS1358 / AS1359
Datasheet - Detailed Description
8 Detailed Description
The AS1358 / AS1359 are ultra-low-noise, low-dropout, low-quiescent current linear-regulators specifically designed for space-limited
applications. The devices are available with preset output voltages from 1.5V to 4.5V in 50mV increments.
These devices can supply loads up to 150mA / 300mA. As shown in
Figure 18
, the AS1358 / AS1359 consist of an integrated bandgap core and
noise bypass circuitry, error amplifier, P-channel MOSFET pass transistor, and internal feedback voltage-divider.
Figure 18
shows the block diagram of the AS1358 / AS1359. It identifies the basics of a series linear regulator employing a 0.5
(typ) P-Channel
MOSFET as the control element. A stable voltage reference (REF in
Figure 18
) 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.
The AS1358 / AS1359 deliver preset output voltages from 1.5V to 4.5V, in 50mV increments
(see Ordering Information on page 15)
.
The output voltage is fed back through an internal resistor voltage-divider connected to pin OUT. An external bypass capacitor connected to pin
BYPASS reduces noise at the output. Startup time is minimized by internal power-on circuitry which pre-charges C
BYPASS
. Additional blocks
include a current limiter, thermal sensor, and shutdown logic.
Figure 18. AS1358 / AS1359 Block Diagram
OUT
IN
SHDNN
BYPASS
GND
AS1358 /
AS1359
Thermal
Sensor
1.25 Reference and
Noise Bypass
Error
Amp
MOS
Driver w/
I
LIMIT
Shutdown and
Power-Down
Control
相關PDF資料 |
PDF描述 |
|---|---|
| AS1358-BTTT-285 | 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 2.85V |
| AS1358-BTTT-30 | 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 3.0V |
| AS1358-BTTT-33 | 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 3.3V |
| AS1358-BTTT-45 | 150mA 9μVrms, 92dB - LDO; Package Type: TSOT23-5; Output Range: 4.5V |
| AS1360-18-T | 1.5μA Low-Power, 20V, LDO; Package Type: SOT23-3; Output Range: 1.8V |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AS1358-BTTT-285 | 功能描述:IC REG LDO 2.85V .15A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標準）:- 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 供應商設備封裝:TSOT-23-5 包裝:帶卷 (TR) |
| AS1358-BTTT-30 | 功能描述:IC REG LDO 3V .15A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標準）:- 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 供應商設備封裝:TSOT-23-5 包裝:帶卷 (TR) |
| AS1358-BTTT-33 | 功能描述:IC REG LDO 3.3V .15A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:2.5V 輸入電壓:2.5 V ~ 5.5 V 電壓 - 壓降（標準）:- 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 供應商設備封裝:TSOT-23-5 包裝:帶卷 (TR) |
| AS1358-BTTT-45 | 功能描述:IC REG LDO 4.5V .15A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結構:正，固定式 輸出電壓:3.3V 輸入電壓:4.7 V ~ 15 V 電壓 - 壓降（標準）:1.2V @ 800mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:800mA（最小值） 電流 - 限制（最?。?800mA 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-3，DPak（2 引線+接片），SC-63 供應商設備封裝:PowerFlex/TO-252 包裝:剪切帶 (CT) 其它名稱:296-31967-1 |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。