Buck Converters for 3.3V Output

kerry

kerry

1A
334 days

flux

2:14

Here are three recommended 3.3 V, 1 A buck converters that accept a 5–12 V input. One is in a tiny SOT-23-6, one in a compact 3×3 mm QFN, and one in an automotive-grade SON package:

Table

PartPackageVin RangeIoutSwitching FreqDatasheet
AP3402TSOT-23-65–18 V2 A1 MHzDatasheet
PAM2305BJE330QFN-16 (3×3 mm EP)4.5–18 V1 A1.5 MHzDatasheet
TPS62162QDSGRQ1WSON-8 (2×2 mm EP) (automotive)3–17 V1 A2 MHzDatasheet
  • AP3402 in SOT-23-6 offers a simple, discrete solution with up to 2 A headroom.
  • PAM2305BJE330 in a true 3×3 mm QFN gives a very compact, fixed-output option.
  • TPS62162QDSGRQ1 provides automotive-grade robustness in a 2×2 mm SON package if you need higher reliability.
Let me know if you’d like footprints, reference designs, or to add any of these directly into your schematic.
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