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TPS3305-33D

TPS3305-33D Multi-Voltage Supervisor IC – Texas Instruments

MPNTPS3305-33D
Active

Texas Instruments TPS3305-33D, multi-voltage supervisor IC, 2-channel, voltage thresholds 2.93V and 4.55V, active-high/active-low push-pull reset, 8-SOIC surface-mount package, -40°C to 85°C operating range.

$4.4900Ref. price · indicative, final on quote
Texas Instruments TPS3305-33D datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TPS3305-33D specifications
ParameterValue
TypeMulti-Voltage Supervisor
MountingSurface Mount
Voltage - threshold2.93V, 4.55V
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 thresholds mean for your power rails

The TPS3305-33D monitors two supply voltages with thresholds at 2.93V and 4.55V — a natural fit for 3.3V and 5V rails in mixed-voltage systems. If either rail drops below its threshold, the reset outputs assert and hold for a minimum of 140 ms after all rails recover, giving the downstream logic time to stabilize before the system starts again.

Active production with standard SOIC footprint

It is supplied in an 8-SOIC package (0.154-inch body width, 3.90 mm), a common footprint that fits on a two-layer board without fan-out issues.

Frequently asked questions

Is TPS3305-33D active-low or active-high reset?

It provides both. The reset outputs are push-pull, totem-pole, with active-high and active-low signals available simultaneously. No external pull-up resistor is needed for either polarity.

What package does TPS3305-33D come in?

The device is supplied in an 8-SOIC package (0.154-inch body width, 3.90 mm), surface-mount, in tube packaging. The supplier device package is also 8-SOIC.

Can I use TPS3305-33D as a replacement for a simple single-voltage supervisor like TLV803?

Not directly. The TPS3305-33D monitors two voltages and provides both reset polarities, while the TLV803 series (e.g., TLV803EA29VDBZR) monitors a single voltage with an active-low open-drain output. The TPS3305-33D is a more capable part for dual-rail systems; if you only need one rail, a TLV803 may be simpler and cheaper.