參數(shù)資料
型號(hào)： L4946
廠商： 意法半導(dǎo)體
英文描述： Quad Voltage Regulator with Inhibit and Reset(帶禁止和復(fù)位的四電壓穩(wěn)壓器)
中文描述： 四電壓調(diào)節(jié)器的抑制和復(fù)位（帶禁止和復(fù)位的四電壓穩(wěn)壓器）
文件頁數(shù)： 1/9頁
文件大?。?/td> 104K
代理商： L4946
L4946
QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET
ADVANCE DATA
4 OUTPUTS: 10V (125mA); 8V (250mA); 5V
(200mA); 5V (100mA)
10V AND 5V (100mA) OUTPUT ARE LOW
DROP
5V (100mA) ST-BY OUTPUT VOLTAGE
EARLY WARNING OUTPUT FOR SUPPLY
UNDERVOLTAGE (LVW)
THERMAL
SHUTDOWN
LIMITATION (FOLDBACK)
REVERSE BATTERY AND LOAD DUMP
PROTECTION
INHIBIT (ON/OFF) AND RESET FUNCTIONS
AND
CURRENT
DESCRIPTION
The L4946 is a quad output low drop voltage
regulator. The four outputs are a low drop 10V at
125mA (V
O1
), a 8V at 250mA (V
O2
), a 5V at
200mA (V
O3
) and a low drop 5V st-by line at
100mA (V
O4
).
The IC includes a monitoring circuit to warn if a
low voltage or no voltage condition is occurring.
V
O1,2,3
are offduring st-by mode.
The STCAP pin allows the battery voltage to de-
cay slowly giving the
μ
P time to store data. This
IC is designed for supplying microcomputer con-
trolled systems specially in automotive applica-
tions.
This is advancedinformation on a new product now in development orundergoing evaluation.Details are subject to change withoutnotice.
January 1994
BLOCK DIAGRAM
Multiwatt 11
ORDERING NUMBER:
L4946
MULTIPOWER BCD TECHNOLOGY
L4946
125mA
250mA
200mA
1/9
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
L4947L 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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