SY26023EDQD

High Efficiency, 2.2MHz, 3A, 5.5V Input Synchronous Buck Converter

SY26023EDQD High Efficiency, 2.2MHz, 3A, 5.5V Input Synchronous Buck Converter Datasheet

Parameters
Features
Description

Part Number	SY26023EDQD
Vin_min (V)	2.5
Vin_max (V)	5.5
Io_max (A)	3
Channels	1
Vo_min (V)	0.6
Fsw (MHz)	2.2
Vref (V)	0.6
Vref Accuracy	±1%
Iq (uA)
Rdson1	38
Rdson2	30
Soft Start	1.75ms
Package	DFN1.5x1.5-6
Topology
Protection Mode	Hic-cup Mode UVP
Features / Special Function	Power Good Indicator, Hic-cup SCP, Auto-recovery OVP/OTP, Forced CCM, Output Auto Discharge
Temp Range	-40°C to 125°C

Low R_DS(ON) for Internal MOSFETs: 38mΩ Top, 30mΩ Bottom
Wide Input Voltage Range: 2.5V ~ 5.5V
Up to 3A Output Current
±1% 0.6V Reference over Temperature from -40°C to 125°C
2.2MHz High Switching Frequency Minimizes the External Components
Advanced Constant On-time and Ripple-Based
Control to Achieve Fast Transient Responses
Forced Continuous Conduction Mode (FCCM) Operation
Internal Soft-Start Limits the Inrush Current
100% Dropout Operation
Power Good Indicator
Cycle-by-Cycle Valley, Peak and Reverse Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection
RoHS-Compliant and Halogen-Free
Compact Package: DFN1.5x1.5-6

The SY26023E high efficiency 2.2MHz synchronous buck converter operates over a wide input voltage range of 2.5V to 5.5V, and can deliver an output current up to 3A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 2.2MHz pseudo-constant switching frequency enables using small external inductor and capacitor values.

The SY26023E uses advanced constant on-time and ripple-based control strategy to achieve fast transient response. It also provides cycle-by-cycle current limit protection, output under voltage protection and over temperature protection.

Only the input and output capacitors, inductor, feedback resistor divider and feedforward capacitor need to be selected for the targeted application specifications.

The SY26023E is available in a compact DFN1.51.5-6 package. The device is part of a family which shares the same package and pinout. The other parts in the family are: SY26023, 3A output current, PFM (Pulse Frequency Modulation), and SY26024 4A output current, PFM.