Home Products Protection Switches USB Switches USB Type A

SY20831FAAT (SY86201FAAT)

Production
Low Loss Power Distribution Switch with 1.57A Fixed Current Limit
Datasheet
SY20831FAAT Low Loss Power Distribution Switch with 1.57A Fixed Current Limit Datasheet
Part number SY20831FAAT
Channel(#) 1
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Iout (max) (A) 1.4
Iq (typ) (uA) 45
Protection mode Auto-recovery OCP,Auto-recovery OTP
Current limit (A) Fixed
Ron (typ) (mΩ) 65
Enable logic High
Output discharge YES
Certification recognition UL2367,IEC62368
Features Reverse blocking, OCP alert
Package SOT23-5
Operating temperature range(°C) -40 to 125
Functional safety category
  • Input Voltage: 2.5V to 5.5V
  • Extremely Low Power Path Resistance: 65mΩ(Typ.)
  • 1.57A±9% Current Limit Accuracy
  • Reverse Blocking (No Body Diode)
  • Fast Reverse Recovery
  • Fault Flag (OCB) Output for Over-Current and Fault Conditions
  • During Shutdown, OUT Can Be Forced Higher than IN
  • Built-In Soft-Start
  • RoHS Compliant and Halogen-Free
  • Compact Package Minimizes Board Space: SOT23-5

The SY20831F is an ultra-low RDS(ON) power distribution switch with a 1.57A fixed current limit to protect the power source from over-current and shortcircuit conditions. It incorporates overtemperature protection and a reverse blocking function.

The SY20831F is available in a compact SOT23-5 package.

Evaluation Board

  • 20831F-1

    Photo of evaluation board

  • 20831F-2

    Photo of evaluation board

  • 20831F-3

    Photo of evaluation board

EVB_SY20831FAAT

The EVB_SY20831FAAT is intended for evaluating the 2.5V- 5.5V input，ultra-low RDS(ON) power distribution switch with 1.57A fixed current limit SY20831FAAT.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12