ProjectsPricingInsights

Best Alternatives to RY3730

Package: SOT-23-6RYCHiPPMIC - LED DriversInput Voltage Range: 2.5V to 5.5VOutput Voltage Max: 30VSwitching Frequency: 1.2MHzFeedback Voltage: 250mVSwitch Current Limit: 1.6A

RY3730 is a SOT-23-6 boost WLED driver with 30V output and 1.6A switch limit. Alternatives need pinout and feedback-network review.

AI replacement insight

Electrical riskmedium

FB, current and Vin vary.

Package risklow

kept parts are SOT-23-6.

Firmware riskmedium

dimming modes may differ.

Sourcing riskmedium

lifecycle data is mixed.

Can it be replaced directly?

No confirmed pin-compatible replacement is supported by the provided evidence.

Best replacement path

Start with SY7200AABC or AP3031KTR-G1 as reviewed parametric candidates.

Main risk

Pinout is unverified and feedback voltage often differs from 250mV.

Recommended alternatives

4
SY7200AABC package
SY7200AABC

silergy

Needs validationmedium risk

SY7200AABC is a close boost WLED candidate but needs pinout and low-voltage review.

View details

Alternative comparison matrix

Feature / factorRY3730SY7200AABCAP3031KTR-G1TPS61165DBVRCompatibility / risk
PackageSOT-23-6SOT-23-6SOT-23-6SOT-23-6SOT-23-6 — same package; AP3031KTR-G1: same package; TPS61165DBVR: same package; AP3019AKTR-G1: same package
PinoutRY3730SY7200AABCAP3031TPS61165SY7200AABC / AP3031 / TPS61165 / AP3019A — not verified; AP3031KTR-G1: not verified; TPS61165DBVR: not verified; AP3019AKTR-G1: not verified
Voltage2.5-5.5V, 30Vout2.8-30V, 30Vout2.7-16V, 37Vout3-18V, 38Vout2.8-30V, 30Vout / 2.7-16V, 37Vout / 3-18V, 38Vout / 2.5-16V, OVP — higher Vin min; AP3031KTR-G1: higher Vin min; TPS61165DBVR: 3V min; AP3019AKTR-G1: Vout max missing
Current1.6A switch2A switch1.4A switch1.2A switch2A switch / 1.4A switch / 1.2A switch / 550mA limit — limit higher; AP3031KTR-G1: less margin; TPS61165DBVR: lower limit; AP3019AKTR-G1: large downgrade
InterfacePWM, DC, filt PWMdimming freq onlyPWM/ext DC claimPWM, 1-wiredimming freq only / PWM/ext DC claim / PWM, 1-wire — mode unclear; AP3031KTR-G1: needs PDF check; TPS61165DBVR: control differs
Application8 series WLED---up to 8 WLED — same use case

Application & sourcing insights

Questions & answers

SY7200AABC looks closest on 30V output and current, but it still needs pinout, Vin and feedback review.