SY20018AAC

High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator

SY20018AAC High Efficiency 1.5MHz, 1A Synchronous Step Down Regulator Datasheet

Parameters
Features
Description

Part Number	SY20018AAC
Vin_min (V)	2.5
Vin_max (V)	5.5
Io_max (A)	1
Channels
Vo_min (V)	0.6
Fsw (MHz)	1.5
Vref (V)
Vref Accuracy	±2%
Iq (uA)	40
Rdson1
Rdson2	260
Soft Start	1
Package	SOT23-5
Topology
Protection Mode
Features / Special Function
Temp Range	170

· Low R_DS(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 R_{DS (ON)} to minimize the conduction loss.