參數(shù)資料
型號： L4945
廠商： 意法半導(dǎo)體
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Very Low Drop Voltage Regulators(低壓差5V穩(wěn)壓器)
中文描述： 非常低壓差電壓調(diào)節(jié)器（低壓差5V的穩(wěn)壓器）
文件頁數(shù)： 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(guān)PDF資料
PDF描述
L4950 Very Low Drop Voltage Regulators(低壓差8.5V穩(wěn)壓器)
L4951 Very Low Drop Voltage Regulators(低壓差10V穩(wěn)壓器)
L4946B Quad Voltage Regulator with Inhibit and Reset(帶禁止和復(fù)位的四電壓穩(wěn)壓器)
L4946 Quad Voltage Regulator with Inhibit and Reset(帶禁止和復(fù)位的四電壓穩(wěn)壓器)
L4947PD 5V-0.5A Very Low Drop Regulator with Reset(帶復(fù)位低壓差穩(wěn)壓器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(wěn)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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
L4947H 功能描述:低壓差穩(wěn)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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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