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參數資料
| 型號： | LD2981ABXX50 |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE |
| 中文描述： | 極低降穩壓器低ESR輸出電容器兼容與抑制研究 |
| 文件頁數： | 1/17頁 |
| 文件大?。?/td> | 414K |
| 代理商： | LD2981ABXX50 |
1/17
September 2003
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STABLE WITH LOW ESR CERAMIC
CAPACITORS
ULTRA LOW DROPOUT VOLTAGE (0.17V
TYP. AT 100mA LOAD, 7mV TYP. AT 1mA
LOAD)
VERY LOW QUIESCENT CURRENT (80μA
TYP. AT NO LOAD IN ON MODE; MAX 1μA
IN OFF MODE)
GUARANTEED OUTPUT CURRENT UP TO
100mA
LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
OUTPUT VOLTAGE OF 1.5; 1.8; 2.5; 2.85;
3.0; 3.2; 3.3; 3.6; 3.8; 4.0; 4.7; 4.85; 5.0V
INTERNAL CURRENT AND THERMAL LIMIT
± 0.75% TOLERANCE OUTPUT VOLTAGE
AVAILABLE (A VERSION)
OUTPUT LOW NOISE VOLTAGE 160μVRMS
TEMPERATURE RANGE: -40 TO 125°C
SMALLEST PACKAGE SOT23-5L AND
SOT-89
FAST DYNAMIC RESPONSE TO LINE AND
LOAD CHANGES
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DESCRIPTION
The LD2981 series are 100mA fixed-output
voltage regulator. The low drop-voltage and the
ultra low quiescent current make them suitable for
low noise, low power applications and in battery
powered systems.
The quiescent current in sleep mode is less than
1μA when INHIBIT pin is pulled low. Shutdown
Logic Control function is available on pin n.3 (TTL
compatible). This means that when the device is
used as local regulator, it is possible to put a part
of the board in standby, decreasing the total
power consumption. The LD2981 is designed to
work with low ESR ceramic capacitor. Typical
applications are in cellular phone, palmtop/laptop
computer,
personal
digital
personal stereo, camcorder and camera.
assistant
(PDA),
LD2981
SERIES
ULTRA LOW DROP VOLTAGE REGULATORS WITH INHIBIT
LOW ESR OUTPUT CAPACITORS COMPATIBLE
SCHEMATIC DIAGRAM
SOT23-5L
SOT-89
相關PDF資料 |
PDF描述 |
|---|---|
| LD2981CXX15 | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE |
| LD2981CXX18 | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE |
| LD2981CM36TR | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT |
| LD2981CM47TR | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT |
| LD2981CM48TR | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LD2981CM15TR | 功能描述:低壓差穩壓器 - LDO Low drop fixed/adj positive voltage reg RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LD2981CM18TR | 功能描述:低壓差穩壓器 - LDO 1.8V 100mA Positive RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LD2981CM25TR | 功能描述:低壓差穩壓器 - LDO 2.5V 100mA Positive RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LD2981CM28TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT |
| LD2981CM30TR | 功能描述:低壓差穩壓器 - LDO 3.0V 100mA Positive RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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