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參數資料
| 型號： | L4945 |
| 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(低壓差5V穩壓器) |
| 中文描述： | 非常低壓差電壓調節器（低壓差5V的穩壓器） |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 42K |
| 代理商： | L4945 |
L4945
5V/8.5V/10V VERY LOW DROP VOLTAGE REGULATORS
PRECISE OUTPUT VOLTAGE:
5V
±
4%(L4945)
8.5V
±
4% (L4950)
10V
±
4% (L4951)
OVER FULL TEMPERATURE RANGE
(– 40 / 125
°
C)
VERY LOW VOLTAGE DROP (0.75Vmax)
OVER FULL TEMPERATURE RANGE
OUTPUT CURRENT UP TO 500mA
OVERVOLTAGE AND REVERSE VOLTAGE
PROTECTIONS
REVERSEVOLTAGEPROTECTION
SHORT CIRCUIT PROTECTION AND THER-
MAL SHUT-DOWN (with hysteresis)
LOW START UP CURRENT
DESCRIPTION
The L4945 is a monolithic integrated circuit in
Versawatt package specially designed to provide
a stabilizedsupply voltage for automotive and in-
dustrial electronic systems. Thanks to their very
low voltage drop, in automotive applications the
devices can work correctly even during the crank-
ing phase, when the battery voltage could fall as
low as 6V. Furthermore, they incorporate a com-
plete range of protection circuits against the dan-
gerous overvoltages always present on the bat-
tery rail of the car.
Thisis advanced information on a new product now in development or undergoing evaluation. Details are subject tochange without notice.
July1998
BLOCK DIAGRAM
TO220
ORDERING NUMBER:
L4945
1/6
相關PDF資料 |
PDF描述 |
|---|---|
| L4950 | Very Low Drop Voltage Regulators(低壓差8.5V穩壓器) |
| L4951 | Very Low Drop Voltage Regulators(低壓差10V穩壓器) |
| L4946B | Quad Voltage Regulator with Inhibit and Reset(帶禁止和復位的四電壓穩壓器) |
| L4946 | Quad Voltage Regulator with Inhibit and Reset(帶禁止和復位的四電壓穩壓器) |
| L4947PD | 5V-0.5A Very Low Drop Regulator with Reset(帶復位低壓差穩壓器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L4946 | 制造商:STMicroelectronics 功能描述:REG LDO LIN FIX POS 10V/8V/5V/5V 0.125A/0.25A/0.2A/0.1A 11PI - Bulk |
| L4946B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET |
| L4946SQ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Output Capacitor-Less Audio Subsystem with Programmable National 3D |
| L4947 | 功能描述:低壓差穩壓器 - LDO 5.0 Volt 0.5 Amp 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 |
| L4947H | 功能描述:低壓差穩壓器 - LDO 5.0V 0.5A 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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