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SY20018AAC (SY8088AAC)

Not recommended for new designs
High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator
Datasheet
SY20018AAC High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator Datasheet
Part number SY20018AAC
Channel(#)
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Switching frequency (min)(kHz)
Switching frequency (max)(kHz)
Vout (min) (V) 0.6
Vout (max) (V)
Iout (max) (A) 1
Vout2 (min)(V)
Vout2 (max )(V)
Iout2 (max)(A)
Vref accuracy (±%) ±2%
Vout accuracy(±%)
Control mode
Duty cycle (max)(%)
Operation mode
Iq (typ) (uA)
Features
Package SOT23-5
Operating temperature range(°C)
Functional safety category

·       Low RDS(ON) for Internal Switches (top/bottom) 260mΩ/170mΩ

·       2.5~5.5V Input Voltage Range

·       38μA Typical Quiescent Current @3.5Vin

48μA Typical Quiescent Current @5.5Vin

·       High Light Load Efficiency

·       High Switching Frequency 1.5MHz Minimizes the External Components 

·       Internal Soft-start Limits the Inrush Current

·       100% Dropout Operation

·       RoHS Compliant and Halogen Free

·       Compact Package: SOT23-5

The SY20018 is a high efficiency 1.5MHz synchronous step down DC/DC regulator IC capable of delivering up to 1A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.

Evaluation Board

  • 1

    Photo of evaluation board

  • 2

    Photo of evaluation board

EVB_SY20018AAC

DB_SY20018AAC is intended for evaluating 1.5MHz, 1A synchronous buck regulator. It features Enable control, output voltage selection inputs.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12