Monolithic Linear IC
Voltage Regulator Driver with Watchdog Timer
The LA5690 is a single-chip voltage regulator for micro-
computer system monitor use that performs the functions
of 5V output voltage control, watchdog timer, and voltage
detector. The LA5690 uses a minimum number of parts to
provide the basic functions.
• Microcomputer system for car equipment, refrigeration/
heating equipment, office automation equipment.
• Output voltage 5V control.
• Watchdog timer.
• Power-ON reset function.
• Positive/negative logic output for reset.
• An external PNP transistor can be used to provide a low-
saturation voltage regulator.
• CK input with edge detector.
• Variable detection voltage.
• Reset output with pull-up resistor of 10kΩ.
SANYO : DIP8
SANYO : SIP9
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
40500TN (KT)/D219YT/8099YT/9088YT, TS No.2895–1/6