SY20054DQC

16μA Ultra Low IQ, 2.2MHz Synchronous Step Down Regulator

SY20054DQC 16μA Ultra Low IQ, 2.2MHz Synchronous Step Down Regulator Datasheet

Parameters
Features
Description

Part Number	SY20054DQC
Vin_min (V)	2.4
Vin_max (V)	5.5
Io_max (A)	4
Channels
Vo_min (V)	0.6
Fsw (MHz)	2.2
Vref (V)	0.6
Vref Accuracy	±1%
Iq (uA)	16
Rdson1	35
Rdson2	25
Soft Start	Internal
Package	DFN1.5x1.5-6
Topology	Sync. Buck
Protection Mode	Hic-cup SCP，OVP，OTP
Features / Special Function	PFM Mode for Light Load Efficiency, Auto Discharge, ultra low IQ
Temp Range	-40°C to 125°C

2.4V to 5.5V Input Voltage Range
Ultra-fast Load Transient Speed
Low RDS(ON) for Internal Switches (Top/Bottom):35mΩ /25mΩ
High Switching Frequency 2.2MHz Minimizes the External Components
±1% Feedback or Output Voltage Accuracy (Full Temperature Range)
PFM Mode for Light Load Efficiency
16μA Operating Quiescent Current
Internal Soft-start Limits the Inrush Current
100% Dropout Operation
Output Auto Discharge Function
Power Good Indicator
Auto Recovery for SCP/OVP/OTP Protection
RoHS Compliant and Halogen Free
Compact Package: DFN1.5×1.5-6

The SY20054 is a high efficiency 2.2MHz synchronous step down DC/DC regulator capable of delivering up to 4A output current. It can operate over a wide input voltage range from 2.4V to 5.5V and integrates main switch and synchronous switch with very low R_{DS (ON)} to minimize the conduction loss.

The SY20054 is in a space saving, low profile DFN1.5×1.5-6 package.