Is there a pin-compatible replacement for TPS3808G33DBVR?

No, all reviewed candidates have a 3-pin SOT-23 package, while the TPS3808G33DBVR uses a 6-pin SOT-23 package. A replacement will require a new board layout.

What risks should I check before replacing TPS3808G33DBVR?

Key risks include: 1) Package/Pinout: A PCB redesign is necessary. 2) Electrical: Verify the replacement's fixed reset delay, threshold voltage, and output type (Open-Drain) are acceptable. 3) Temperature: Ensure the operating temperature range meets system requirements.

TPS3808G33DBVR Alternatives, Datasheet & Cross Reference | Texas Instruments

The Texas Instruments TPS3808G33DBVR is a precision supervisory circuit in a 6-pin SOT-23 package, featuring a 3.07V threshold and a user-programmable reset delay. Finding a direct replacement is challenging due to its unique 6-pin configuration and programmable feature.

AI replacement insight

Package riskhigh

Requires PCB redesign from 6-pin to 3-pin SOT-23.

Electrical riskhigh

Loses programmable reset delay, a critical feature for some applications.

Firmware risklow

No firmware interaction, but system timing may be affected by the change in reset delay.

Can it be replaced directly?

No, there are no direct, drop-in replacements for the TPS3808G33DBVR among the candidates reviewed due to a pin count mismatch (6-pin vs 3-pin) and the lack of a programmable delay feature.

Best replacement path

Redesign the board for a common 3-pin supervisor if programmable delay is not critical, or search for other 6-pin programmable supervisors.

Main risk

The primary risk is the need for a complete PCB redesign due to the different package pin count and loss of the programmable delay function.

Recommended alternatives

A functional alternative, but requires PCB redesign and lacks the target's programmable reset delay feature.

View details

Alternative comparison matrix

Feature / factor	TPS3808G33DBVR	TPAX803SS3	Compatibility / risk
Pinout	6	3	3 — Requires PCB redesign. Target has programmable delay pin (CT), candidate does not.
Application	Programmable	Fixed (~140ms)	Fixed (~140ms) — Candidate has fixed reset delay, target is programmable (1.25ms-10s).
Temperature	-40°C to +125°C	-40°C to +105°C	-40°C to +105°C — Candidate has a narrower operating temperature range.
Voltage	3.07V	2.93V (typ)	2.93V (typ) — Threshold voltage is slightly lower.
Package	SOT-23	SOT-23	SOT-23 — Package family is the same, but pin count differs.

Application & sourcing insights

Questions & answers

Currently, no direct pin-compatible alternatives have been identified. Functional alternatives like the TPAX803SS3 exist but are 3-pin devices with a fixed reset delay, requiring a PCB redesign and loss of functionality.