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SY20341BSAC (SY8821BSAC)

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High Efficiency 2MHz, Dual 1.0A Synchronous Step Down Regulator
Datasheet
SY20341BSAC High Efficiency 2MHz, Dual 1.0A Synchronous Step Down Regulator Datasheet
Part number SY20341BSAC
Channel(#) 2
Vin (min) (V) 2.3
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) 1
Vout2 (min)(V) 0.6
Vout2 (max )(V) 5
Iout2 (max)(A) 1
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 DFN2×1.5-8
Operating temperature range(°C) -40 to 125
Functional safety category
  • 2.3V to 5.5V Input Voltage
  • 2MHz Switching Frequency
  • 180° Out of Phase Operation
  • Output Current: 1.0A for Each Channel
  • Low Quiescent Current: Typical 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: DFN2x1.5-8

The SY20341B is a dual output, high efficiency 2MHz synchronous step down DC/DC regulator capable of delivering up to 1.0A for each output channel. The SY20341B operates over a wide input voltage range from 2.3V to 5.5V and integrates a main switch and a synchronous switch with very low RDS(ON) to minimize the conduction loss.

Evaluation Board

  • 20341B-1

    Photo of evaluation board

  • 20341B-2

    Photo of evaluation board

  • 20341B-3

    Photo of evaluation board

EVB_SY20341BSAC

The EVB_SY20341BSAC is intended for evaluating 2MHz, Dual 1.0A, synchronous Buck regulator. It features Enable controls. 

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12
DFN2x1.5-8 2022-05-20