SY20123QWC

High Efficiency 2.0MHz, 1.5A Buck

SY20123QWC High Efficiency 2.0MHz, 1.5A Buck Datasheet

Parameters
Features
Description

Part Number	SY20123QWC
Vin_min (V)	2.6
Vin_max (V)	5.5
Io_max (A)	1.5
Channels
Vo_min (V)	0.6
Fsw (MHz)	2
Vref (V)
Vref Accuracy	±1%
Iq (uA)	55
Rdson1	180
Rdson2	100
Soft Start	0.4
Package	QFN1.5x1.5-7
Topology
Protection Mode	Hic-cup SCP
Features / Special Function	Power Good Indicator,Auto-Discharge,100% Dropout Operation
Temp Range

2.6~5.5V Input Voltage Range
55µA Low Quiescent Current
Ultra Fast Load Transient Speed
Low RDS(ON) for Internal Switches (Top/Bottom) 180mΩ /100mΩ
High Switching Frequency 2.0MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
Power Good Indicator
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: QFN1.5×1.5-7

SY20123 is a high efficiency 2.0MHz synchronous step down DC/DC regulator capable of delivering up to 1.5A output currents. It can operate over a wide input voltage range from 2.6V to 5.5V and integrate main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.

Low output voltage ripple, small external inductor and capacitor sizes are achieved with 2.0MHz switching frequency.