Is there a pin-compatible replacement for HXY6206I-3.3?

No pin-for-pin compatible replacement has been identified in this review. Candidates in the same SOT-23 package, like SSP7603P33MR, have different pinouts and require PCB layout changes to work correctly.

What risks should I check before replacing HXY6206I-3.3?

The primary risks are pinout incompatibility and high dropout voltage. Always verify the candidate's datasheet for pin configuration (VIN, VOUT, GND) and ensure its dropout voltage meets your application's minimum input-output differential before soldering.

HXY6206I-3.3 Alternatives, Datasheet & Cross Reference | HXY MOSFET

HXY6206I-3.3 is a 3.3V, 300mA LDO in a SOT-23 package. Finding a direct replacement requires careful review of pinout and dropout voltage, as no pin-compatible alternatives were found.

AI replacement insight

Package riskhigh

Pinout is not standardized for SOT-23 LDOs; candidates have different pin configurations.

Electrical riskmedium

Some alternatives have significantly higher dropout voltage, impacting performance in low Vin applications.

Can it be replaced directly?

No direct, pin-compatible replacement was found. All candidates require engineering review and likely PCB modifications.

Best replacement path

Use SSP7603P33MR if you can modify the PCB layout to swap pins 1 and 2. It offers better electrical performance in the same SOT-23 footprint.

Main risk

Pinout mismatch in same-package alternatives is the highest risk, potentially causing damage if not caught.

Recommended alternatives

Functional alternate in the same SOT-23 package with higher current, but requires pinout modification on the PCB.

View details

Alternative comparison matrix

Feature / factor	HXY6206I-3.3	SSP7603P33MR	LM1117GSF-3.3	Compatibility / risk
Package	SOT-23	SOT23-3	SOT-23	SOT23-3 / SOT-23 — Package is physically compatible with SOT-23.; LM1117GSF-3.3: Package is a physical match.
Pinout	GND,VOUT,VIN	VOUT,GND,VIN	GND,VIN,VOUT	VOUT,GND,VIN / GND,VIN,VOUT — Pin 1/2 are swapped vs target. Requires PCB change.; LM1117GSF-3.3: Pin 2/3 are swapped vs target. Requires PCB change.
Voltage	8V	15V	12V	15V / 12V — Higher max input voltage provides more margin.; LM1117GSF-3.3: Higher max input voltage.
Current	300mA	500mA	300mA	500mA / 300mA — Higher output current capability.; LM1117GSF-3.3: Output current matches.
Dropout	160mV @ 50mA	170mV @ 100mA	1.2V	170mV @ 100mA / 1.2V — Dropout voltage is comparable to target.; LM1117GSF-3.3: Significantly higher dropout voltage is a major downgrade.

Application & sourcing insights

Questions & answers

The best alternative depends on your design constraints. SSP7603P33MR offers upgraded current in the same SOT-23 package but requires swapping pins 1 and 2 on the PCB. For new designs not constrained by footprint, SSP7903P33PR is an excellent electrical upgrade.