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Analog Devices MAX703ESA+T — Logic ICs

MAX703ESA+T Battery Backup Circuit, 4.65V Threshold, 8-SOIC

MPNMAX703ESA+T
End of Life

Maxim Integrated MAX703ESA+T, Battery Backup Circuit, 1 Channel, Active Low, Push-Pull Output, 140ms Reset Timeout, 4.65V Threshold, 8-SOIC, -40°C to 85°C.

$8.7Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX703ESA+T specifications
ParameterValue
TypeBattery Backup Circuit
MountingSurface Mount
Voltage - threshold4.65V
Number of voltages monitored1
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout140ms Minimum
Case8-SOIC (0.154\", 3.90mm Width)

Product details

Battery backup supervisor with a 4.65V threshold

4.65V threshold — why that number matters

The 4.65V threshold sits just below a nominal 5V rail. In a 5V system, this means the supervisor holds the processor in reset until the supply is within about 7% of its target, then releases after the 140ms timeout. For a 3.3V-only design, this part won't work — the threshold is fixed and non-adjustable. If you're supervising a lower-voltage rail, you'd need a different threshold variant in the MAX70x family.

The ROHS3 compliance is also confirmed, so it fits modern assembly requirements without exemption paperwork.

Frequently asked questions

What is the reset timeout of MAX703ESA+T?

The reset timeout is a minimum of 140ms. After the monitored voltage rises above the 4.65V threshold, the reset output stays asserted for at least 140ms before releasing, ensuring the system power and clock have settled.