L4946

更新时间： 2024-09-25 22:47:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
9页	91K
描述
QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET

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数据手册

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L4946 数据手册

L4946

QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET

MULTIPOWER BCD TECHNOLOGY

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 AND CURRENT

LIMITATION (FOLDBACK)

REVERSE BATTERY AND LOAD DUMP

PROTECTION

INHIBIT (ON/OFF) AND RESET FUNCTIONS

Multiwatt 11

ORDERING NUMBER: L4946

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 STCAP pin allows the battery voltage to de-

cay slowly giving the P time to store data. This

IC is designed for supplying microcomputer con-

trolled systems specially in automotive applica-

tions.

The IC includes a monitoring circuit to warn if a

low voltage or no voltage condition is occurring.

_O1,2,3are off during st-by mode.

BLOCK DIAGRAM

L4946

125mA

250mA

200mA

June 2000

1/9

12 3 4 5 6 7...9

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