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SY20321AIC (SY8832AIC)

Production
High Efficiency 2MHz, Dual 2A Synchronous Step Down Regulator
Datasheet
SY20321AIC High Efficiency 2MHz, Dual 2A Synchronous Step Down Regulator Datasheet
Part number SY20321AIC
Channel(#) 2
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Switching frequency (min)(kHz) 2000
Switching frequency (max)(kHz) 2000
Vout (min) (V) 0.6
Vout (max) (V) 5
Iout (max) (A) 2
Vout2 (min)(V) 0.6
Vout2 (max )(V) 5
Iout2 (max)(A) 2
Vref accuracy (±%) 2
Vout accuracy(±%)
Control mode Clock+Ipeak
Duty cycle (max)(%) 100
Operation mode Auto PFM
Iq (typ) (uA) 45
Features Interleave operation
Package TSOT23-8
Operating temperature range(°C) -40 to 125
Functional safety category

 

  • 2.5V to 5.5V Input Voltage
  • 2MHz Switching Frequency
  • 180° Out of Phase Operation
  • Output Current: 2A per Channel
  • Low Quiescent Current: <45µA for Both Channels
  • Low RDS(ON) for Internal Switches (PFET/NFET):  125mΩ/100mΩ
  • Internal Soft-start
  • 100% Dropout Operation
  • RoHS Compliant and Halogen Free
  • Compact Package: TSOT23-8

 

The SY20321 is a dual output, high efficiency 2MHz synchronous step down DC/DC regulator capable of delivering up to 2A output current for each output channel. The SY20321 operates over a wide input voltage range from 2.5V to 5.5V and integrates a main switch and a synchronous switch with very low RDS(ON) to minimize the conduction loss.

Evaluation Board

  • 20321-1

    Photo of evaluation board

  • 20321-2

    Photo of evaluation board

  • 20321-3

    Photo of evaluation board

  • 20321-4

    Photo of evaluation board

  • 20321-5

    Photo of evaluation board

EVB_SY20321AIC

The EVB_SY20321AIC is intended for evaluating 2MHz, Dual 2A synchronous Buck regulator. It features Enable controls.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12