SY2A22402BFCA

1.8μA Quiescent Current, 0.6A, 40V Input Synchronous Step Down Regulator

SY2A22402BFCA 1.8μA Quiescent Current, 0.6A, 40V Input Synchronous Step Down Regulator Datasheet

Parameters
Features
Description

Part Number	SY2A22402BFCA
Vin_min (V)	4.25
Vin_max (V)	40
Vo_min (V)	NA
Io_max (A)	0.6
Vref Accuracy	±3%
Fsw (MHz)	2.1
Iq (uA)	1.8
Package	SO8E
Protection Mode	Hic-cup SCP
Features / Special Function	Power Good Indicator

Input Voltage Range: 4.25V to 40V
Output Current Capability: 0.6A
Low RDS(ON) for Internal Switches: 225mΩ (Top), 150mΩ (Bottom)
Low Quiescent Current: 1.8μA
Switching Frequency: 2.1MHz
Internal Soft-Start Limits the Inrush Current
Short-Circuit Protection
Thermal Shutdown and Auto Recovery
Power Good Indicator
Compact Package: SO8E
Automotive AEC-Q100 Grade 1 Certified

The SY2A22402B high-efficiency synchro-nous step-down DC/DC converter operates over a wide input voltage range of 4.25V to 40V and delivers up to 0.6A load current. The device integrates very low RDS(ON) main and synchronous MOSFETs to minimize conduction losses.

The SY2A22402B utilizes a peak current control strategy with a constant switching frequency. The SY2A22402B operates at a 2.1MHz switching frequency with a fixed output voltage of 3.3V.

The device operates with low quiescent current to achieve high efficiency under light load conditions and includes an internal soft-start feature to limit inrush current during power-on.

Short-circuit and thermal protection are provided for reliable operation.

The SY2A22402B is available in an SO8E package.