IMP6303
P
OWER
M
ANAGEMENT
Key Features
3-Pin Microcontroller
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Monitor 4.0V supply
Power Supply Supervisor
140ms min. reset pulse width
Active-low reset valid with 1.1V supply
Small 3-pin SOT-23 package
Small 3-pin TO-92 package
Small 5-pin SOT-23-5 package
No external components
The IMP6303 is a 4.0V power supply supervisor circuits optimized for low-
power microprocessor (µP), microcontroller (µC) and digital systems.
A reset signal is issued if the power supply voltage drops below a preset
reset threshold and is asserted for at least 140ms after the supply has
risen above the reset threshold. The IMP6303 has an active-low RESET
output that is guaranteed to be in the correct state for VCC down to 1.1V.
The reset comparator is designed to ignore fast transients on V
.
CC
Specified over full temperature range
— –40°C to 105°C
Low supply current makes the IMP6303 ideal for use in portable and
battery operated equipment. The IMP6303 is available in a compact 3-pin
SOT23, TO-92 and 5 pin SOT23-5 packages.
Applications
ꢀ Embedded controllers
ꢀ Battery operated systems
ꢀ Intelligent instruments
ꢀ Wireless communication systems
ꢀ PDAs and handheld equipment
Block Diagrams
V
CC
V
CC
IMP6303
V
CC
µP
RESET
Input
RESET
(RESET)
GND
GND
6303_01.eps
© 2001 IMP, Inc.
408-432-9100/www.impweb.com
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