SY21612CQFC (SY9329CQFC)

High Efficiency, 38V Maximum Input Single Inductor Synchronous Step Up/Down Regulator

SY21612CQFC High Efficiency, 38V Maximum Input Single Inductor Synchronous Step Up/Down Regulator Datasheet

Parameters
Features
Description

Part number	SY21612CQFC
Vin (min) (V)	4
Vin (max) (V)	28
Current limit (A)	Programmable 6A/10A
Switching frequency (min)(kHz)	Programmable 0.25/0.5
Switching frequency (max)(kHz)
Vout (min) (V)
Vout (max) (V)	28
Vref accuracy (±%)	1.5
Vout accuracy(±%)
Iq (typ) (uA)	300
Features
Package	QFN4×4-32
Operating temperature range(°C)	-40 to 125
Functional safety category

4V to 28V Operating Input Voltage Range
38V Absolute Maximum Input Voltage
Low RDS(ON) for Internal Switches: 25mΩ
250kHz/500kHz Selectable Switching Frequency
Soft-Start Inrush Current limit
Hiccup Mode for Output Overcurrent, Short-Circuit and Overvoltage Protection
Thermal Shutdown with Auto-Recovery
6A/10A Selectable Average Inductor Current Limit
1.0V±1.5% Reference Voltage Accuracy
Resistor Programmable Output Current Limit
RoHS-Compliant and Halogen-Free
Compact Package: QFN4×4-32

The SY21612C high-voltage synchronous buckboost converter operates over a wide input voltage range from 4V to 28V with 10A maximum average inductor current capability. The four integrated lowRDS(ON) switches minimize conduction loss.

The SY21612C offers protection against multiple conditions, including short-circuit, overcurrent, overvoltage, and overtemperature.

The SY21612C is highly integrated, so only the input and output capacitors, inductor, and feedback resistors need to be selected for the targeted application specifications.

The SY21612C is available in a compact QFN4×4- 32 package.