參數(shù)資料
型號(hào)： L4943
廠商： 意法半導(dǎo)體
英文描述： MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
中文描述： 多功能穩(wěn)壓器以便汽車收音機(jī)
文件頁數(shù)： 1/6頁
文件大小： 113K
代理商： L4943
3 PROGRAMMABLE OUTPUTS:
3 TO 11V (500mA);
3 TO 11V (500mA);
3 TO 7V (500mA) STANDBY
OUT1 AND OUT2 WITH INDEPENDENT EN-
ABLE CONTROL FOR STAND-BY MODE
0.4A HIGH SIDE DRIVER
LOAD DUMP PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L4943 contains a triple voltage regulator and
a high side driver.
In stand-by the output is active as long as possi-
ble even when in thermal shutdown or under any
other fault conditions.
The STCAP pin allows the use of a reserve sup-
ply capacitor that will hold enough energy for the
5V Stand-by line to allow the
μ
P to store data.
December 2000
D97AU668B
GEN
REF
V
MEM
(3÷7)V 0.5A
V
ADJ1
(3÷11)V 0.5A
V
ADJ2
(3÷11)V 0.5A
HSD
LOAD
DUMP
V
MEM
V
MEM_feed
V
ADJ1
V
ADJ1_feed
V
ADJ2
V
ADJ2_feed
4
ST CAP
EN1
EN2
V
S
P-GND
S-GND
TAB
FILTER CAP
14
HSD
9
13
7
10
11
12
1
2
5
8
3
6
BLOCK DIAGRAM
Multiwatt 15
ORDERING NUMBER:
L4943
L4943
MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
1/6
相關(guān)PDF資料
PDF描述
L4947R 5V-0.5A VERY LOW DROP REGULATOR WITH RESET
L4949ED MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR
L4949EP MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR
L4953G MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
L4959 MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L4945 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
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
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