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SY20731BAJC (SY6301BAJC)

Production
Super Low Dropout 1A LDO Regulator
Datasheet
SY20731BAJC Super Low Dropout 1A LDO Regulator Datasheet
Part number SY20731BAJC
Vin (max) (V) 5.5
Vin (min) (V) 1.6
Iout (max) (A) 1
Output type Fixed
Vout (max) (V) 3.3
Vout (min) (V) 3.3
Iq (typ) (uA) 80
PSRR at 100kHz (dB) 28
Accuracy (±%) 3
Features Fixed soft-start,Over current protection,Thermal shutdown
Operating temperature range(°C) -40 to 125
Package SOT223
Functional safety category
  • Input Voltage Range: 1.6-5.5V
  • Output Voltage Accuracy: ±3%
  • Up to 1A Output Current
  • Current Limiting Protection
  • Quiescent Current: 80μA
  • Over Temperature Protection
  • RoHS Compliant and Halogen Free
  • Compact Package: SOT-223

The SY20731B is a low dropout LDO regulator with 3.3V fixed output voltage, capable of de-livering up to 1A output current.

Only the input and output capacitors need to be selected for the targeted application specifica-tions. 

The SY20731B is available in an industry standard SOT-223 package, which offers low thermal re-sistance.

 

Evaluation Board

  • 20731B-1

    Photo of evaluation board

  • 20731B-2

    Photo of evaluation board

  • 20731B-3

    Photo of evaluation board

EVB_SY20731BAJC

The EVB_SY20731BAJC is intended for evaluating a super low dropout 1A LDO regulator with 3.3V fixed output voltage .

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12
SOT223 2021-11-10