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PDF ( 数据手册 , 数据表 ) L4925

零件编号 L4925
描述 VERY LOW DROP VOLTAGE REGULATOR
制造商 STMicroelectronics
LOGO STMicroelectronics LOGO 


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L4925 数据手册, 描述, 功能
® L4925
VERY LOW DROP VOLTAGE REGULATOR
OPERATING DC SUPPLY VOLTAGE RANGE
6V TO 28V
TRANSIENT SUPPLY VOLTAGE UP TO 40V
EXTREMELY LOW QUIESCENT CURRENT
HIGH PRECISION OUTPUT VOLTAGE
OUTPUT CURRENT CAPABILITY UP TO
500mA
VERY LOW DROPOUT VOLTAGE LESS
THAN 0.6V
RESET CIRCUIT SENSING THE OUTPUT
VOLTAGE
PROGRAMMABLE RESET PULSE DELAY
WITH EXTERNAL CAPACITOR
THERMAL SHUTDOWN AND SHORT CIR-
CUIT PROTECTIONS
DESCRIPTION
The L4925 is a monolithic integrated 5V voltage
regulator with a very low dropout output and addi-
BLOCK DIAGRAM
Pentawatt
PowerSO20
ORDERING NUMBERS: L4925 (Pentawatt)
L4925PD (PowerSO20)
tional functions such as power-on reset and pro-
grammable reset delay time. It is designed for
supplying microcomputer controlled systems es-
pecially in automotive applications.
VS
CS
PREREGULATOR
5V
Vz
+
-
GND
REG
VREF
1.23V
Vz
2µ
RESET
L4925N
= 2V
VO
CT
RES
D95AT151
June 2000
1/8
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.







L4925 pdf, 数据表
L4925
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publicationsupersedes and replaces all information previously supplied. STMicroelectronics products
are notauthorizedfor use as critical components in life support devices or systems without express writtenapproval of STMicroelectronics.
The ST logois a registered trademark of STMicroelectronics
© 2000 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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