ProjectsPricingInsights

Best Alternatives to CJA1117B-3.3

Package: SOT-89-3LJiangsu Changjing Electronics Technology Co., Ltd.PMIC - Voltage Regulators - LinearOutput Voltage: 3.3 VOutput Current: 1 ADropout Voltage: 1.15 V @ 1 AOperating Junction Temperature: -25 °C to 125 °CInput Voltage (Max): 15 V

CJA1117B-3.3 is a 3.3 V 1 A fixed LDO in SOT-89-3L. Current candidates need FAE review before use.

AI replacement insight

Electrical riskmedium

LDO ratings close, dropout varies.

Package riskhigh

Most candidates are SOT-223.

Firmware risklow

No firmware interface.

Sourcing riskmedium

Some lifecycle fields missing.

Can it be replaced directly?

No pin-compatible replacement is confirmed from the provided data.

Best replacement path

Check AMS1117-3.3S first, then verify package suffix, pin order, dropout, and capacitors.

Main risk

Package and pinout are not fully verified.

Recommended alternatives

6
AMS1117-3.3S package
AMS1117-3.3S

EVVO

Needs validationmedium risk

AMS1117-3.3S is the closest catalog candidate but needs package and pinout review.

View details

Alternative comparison matrix

Feature / factorCJA1117B-3.3AMS1117-3.3SLDL1117S33RCJT1117B-3.3Compatibility / risk
PackageSOT-89-3LSOT-89--SOT-223 — not board fit
Pinout3-pin targetGND/VOUT/VIN claim--3 pins — pin order not shown
Voltage3.3 V, 15 V max3.3 V, 18 V max--3.3 V, 18 V max — Vin higher
Current1 A1 A--1.2 A — current higher
Temperature-25 to 125 C-40 to 125 C---40 to 125 C — covers target

Application & sourcing insights

Questions & answers

AMS1117-3.3S is the closest listed candidate by package class, but it still needs pinout and package review.