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Best Alternatives to TP8204HS6

Package: SOT23-6TECH PUBLICPMIC - Voltage Regulators - DC DC Switching RegulatorsOutput Current: 2 AInput Voltage Range: 3.5 V to 18 VSwitching Frequency: 600 kHzOutput Voltage: Adjustable (0.8 V Reference)Topology: Buck (Step-Down)

TP8204HS6 is a versatile 18V, 2A synchronous buck converter in a SOT23-6 package. While no direct pin-compatible replacements have been found, several functional alternatives exist that require board redesign and careful parameter review.

AI replacement insight

Package riskhigh

Pinout is not compatible, requiring a new PCB layout.

Electrical riskmedium

Key parameters like Vin(min), Vref, and F_sw differ, requiring circuit recalculation.

Sourcing risklow

Alternatives from major vendors like TI and Silergy are available.

Can it be replaced directly?

No direct pin-compatible replacement for TP8204HS6 has been identified. All reviewed alternatives require a PCB layout change.

Best replacement path

TMI3244T offers upgraded current with a close switching frequency, while SM8102ABC and LMR51430XFDDCR are strong options from major vendors. All require board redesign and careful review of Vin_min and Vref.

Main risk

Pinout incompatibility is the main risk, requiring a board redesign for all potential alternatives. Secondary risks include differences in minimum input voltage and feedback reference voltage.

Recommended alternatives

4
TMI3244T package
TMI3244T

TMI

Needs validationhigh risk

Offers higher output current but requires board redesign due to different pinout, higher min input voltage, and different Vref.

View details

Alternative comparison matrix

Feature / factorTP8204HS6TMI3244TLMR51430XFDDCRTMI3342Compatibility / risk
PackageSOT23-6SOT23-6SOT-23-6SOT23-6SOT23-6 / SOT-23-6 — Package is form-factor compatible.; LMR51430XFDDCR: Package is form-factor compatible.; TMI3342: Package is form-factor compatible.; SM8102ABC: Package is form-factor compatible.
PinoutTP8204HS6 pinoutDifferentDifferentDifferentDifferent — Requires PCB redesign.; LMR51430XFDDCR: Requires PCB redesign.; TMI3342: Requires PCB redesign.; SM8102ABC: Requires PCB redesign.
Voltage3.5V - 18V4.5V - 18V4.5V - 36V4.5V - 30V4.5V - 18V / 4.5V - 36V / 4.5V - 30V / 4.2V - 18V — Higher minimum input voltage.; LMR51430XFDDCR: Higher minimum input voltage; wider max range.; TMI3342: Higher minimum input voltage.; SM8102ABC: Higher minimum input voltage.
Current2.0A4.0A3.0A2.0A4.0A / 3.0A / 2.0A — Higher output current provides more margin.; LMR51430XFDDCR: Higher output current provides more margin.; TMI3342: Output current matches.; SM8102ABC: Output current matches.
Output Voltage V0.8V0.765V1.0V (Est.)-0.765V / 1.0V (Est.) / 0.6V (Est.) — Different Vref requires feedback resistor change.; LMR51430XFDDCR: Different Vref requires feedback resistor change.; SM8102ABC: Different Vref requires feedback resistor change.
Switching Frequency600 kHz--370 kHz370 kHz — Lower frequency requires inductor/capacitor review.

Application & sourcing insights

Questions & answers

There is no single 'best' alternative. TMI3244T offers higher current, while SM8102ABC and LMR51430XFDDCR are options from major brands. All require a board redesign and careful electrical review of your application's input voltage and feedback circuit.