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TPS3305-18D

TPS3305-18D Multi-Voltage Supervisor - Texas Instruments

MPNTPS3305-18D
Active

Texas Instruments TPS3305-18D, Multi-Voltage Supervisor, 2 channels, thresholds 1.68V and 2.93V, active high/active low reset, push-pull output, 8-SOIC, -40°C to 85°C, active.

$4.2400Ref. price · indicative, final on quote
Texas Instruments TPS3305-18D datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3305-18D specifications
ParameterValue
TypeMulti-Voltage Supervisor
MountingSurface Mount
Voltage - threshold1.68V, 2.93V
Number of voltages monitored2
Operating temperature-40°C~85°C(TJ)
ResetActive High/Active Low
OutputPush-Pull, Totem Pole
PackageTube
Reset timeout140ms Minimum
Case8-SOIC (0.154\", 3.90mm Width)

Product details

What the dual-threshold supervisor does for your board

The TPS3305-18D is a multi-voltage supervisor from Texas Instruments that monitors two supply rails simultaneously — thresholds at 1.68V and 2.93V. This is the kind of part you drop onto a board with a 3.3V I/O rail and a 1.8V core rail, so that if either dips below its threshold the supervisor asserts a reset and holds it for a minimum of 140ms. Both active-high and active-low reset outputs are available from the same chip, and the output stage is push-pull (totem pole) — no external pull-up resistor needed. That simplifies the BOM and saves a resistor slot on a dense board.

Temperature range and package — where it fits on the board

Supplier device package is 8-SOIC. The 140ms minimum reset timeout gives downstream regulators and oscillators enough time to stabilise before the processor comes out of reset.

ROHS3 compliant.

Frequently asked questions

What is the exact footprint of TPS3305-18D?

The TPS3305-18D is supplied in an 8-SOIC package (0.154-inch body width, 3.90mm width) with a surface-mount footprint. The supplier device package is also 8-SOIC. Standard SOIC-8 land pattern applies.

What are the recommended substitutes for TPS3305-18D?

The TLV803EA29VDBZR and TLV803ED29DBZR are simple reset/power-on reset ICs with active-low, open-drain outputs and a single threshold (2.93V for the EA version, 2.93V for the ED version). They are not direct pin-for-pin replacements because the TPS3305-18D monitors two voltages (1.68V and 2.93V) and provides both active-high and active-low push-pull outputs. For a dual-voltage supervisor, the TPS3305-18D is the correct part.