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Analog Devices MAX6709DUB — Power Management (PMIC / Gate Driver)

MAX6709DUB Multi-Voltage Supervisor, Quad Monitor

MPNMAX6709DUB
End of Life

Maxim Integrated MAX6709DUB, Multi-Voltage Supervisor, Quad Monitor, Active-Low Open-Drain Output, Thresholds 1.67V/3.08V/4.63V/Adj, -40°C to 85°C, 10-uMAX Package.

$3.67Ref. price · indicative, final on quote
Analog Devices MAX6709DUB datasheet (PDF)
Packaging10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX6709DUB specifications
ParameterValue
TypeMulti-Voltage Supervisor
MountingSurface Mount
Voltage - threshold1.67V, 3.08V, 4.63V, Adj
Number of voltages monitored4
Operating temperature-40°C ~ 85°C (TA)
ResetActive Low
OutputOpen Drain or Open Collector
PackageBulk
Case10-TFSOP, 10-MSOP (0.118\", 3.00mm Width)

Product details

Quad supervisor for multi-rail systems

It asserts a common active-low reset output (open-drain) whenever any monitored voltage falls below its threshold. The factory-programmed thresholds are 1.67 V, 3.08 V, and 4.63 V, with a fourth adjustable input for a custom trip point. This part is designed for systems that need to sequence or supervise multiple power domains — think FPGA core + I/O banks, mixed-signal boards with analog and digital supplies, or telecom line cards with multiple voltage planes.

Thresholds and reset behaviour

The three fixed thresholds are 1.67 V, 3.08 V, and 4.63 V. The adjustable input sets a fourth threshold with an external resistor divider.

It is RoHS non-compliant per the original release — if your BOM requires RoHS compliance, verify the lead-free suffix variant (MAX6709DUB+ or similar) with your distributor.

Frequently asked questions

How does MAX6709DUB compare to ADM708?

The ADM708 is a single-voltage supervisor (monitors one rail), while the MAX6709DUB monitors four rails. The ADM708 typically has a fixed threshold (e.g., 2.93 V for 3 V systems) and a push-pull or open-drain output. The MAX6709DUB offers three fixed thresholds plus an adjustable input, making it suitable for multi-rail supervision in a single package. For single-rail monitoring, the ADM708 is a simpler, lower-cost choice; for quad monitoring, the MAX6709DUB consolidates what would otherwise require four separate supervisors.

Is MAX6709DUB compatible with 3.3V systems?

Yes. One of the fixed thresholds is 3.08 V, which is the standard undervoltage trip point for a 3.3 V rail (typically 2.93–3.08 V). The open-drain output can be pulled up to 3.3 V or any other voltage within the absolute maximum ratings, making it directly compatible with 3.3 V logic.