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L4943 Datasheet

  • L4943

  • MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

  • 116.63KB

  • 6頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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L4943
MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
3 PROGRAMMABLE OUTPUTS:
鈾?/div>
3 TO 11V (500mA);
鈾?/div>
3 TO 11V (500mA);
鈾?/div>
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
BLOCK DIAGRAM
Multiwatt 15
ORDERING NUMBER:
L4943
5V Stand-by line to allow the
碌P
to store data.
FILTER CAP
11
GEN
REF
V
MEM
(3梅7)V 0.5A
10
ST CAP
12
V
MEM
V
MEM_feed
V
ADJ1
V
ADJ1_feed
V
ADJ2
V
ADJ2_feed
EN1
1
V
ADJ1
(3梅11)V 0.5A
7
13
EN2
2
V
ADJ2
(3梅11)V 0.5A
9
14
V
S
5
HSD
LOAD
DUMP
4
HSD
6
P-GND
3
S-GND
8
TAB
D97AU668B
December 2000
1/6

L4943 產(chǎn)品屬性

  • STMicroelectronics

  • 線性穩(wěn)壓器 - 標(biāo)準(zhǔn)

  • Adjustable

  • Positive

  • 3 V to 11 V, 3 V to 11 V, 3 V to 7 V

  • 500 mA

  • 80 mV

  • 6 V

  • 50 mV

  • + 85 C

  • Through Hole

  • Multiwatt-15

  • - 0.6 V

  • 33000 mW

  • - 40 C

  • 3

  • Tube

  • 25

L4943相關(guān)型號PDF文件下載

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  • 英文版
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