SY9329B
SY9329B is Single Inductor Synchronous Step Up/Down Regulator manufactured by Silergy.
High Efficiency, 28V Input Single Inductor Synchronous Step Up/Down Regulator
General Description:
The SY9329B is a high voltage Buck-Boost converter for USB power delivery applications. With user-selectable source mode and sink mode, it Features bidirectional power delivery. In source mode, the output voltage VVBUS is 5V, 9V, 10V, 12V, 15V, 20V selectable. In sink mode, the output voltage VBAT is adjustable with an external resistor divider. The device operates over a wide input voltage range from 4V to 28V and the maximum average inductor current is limited to a typical value of 10A. The four integrated low RDS(ON) switches minimize the conduction loss.
The SY9329B integrates an I2C patible interface for mode selecting, output voltage setting, frequency setting, protection setting, and etc.
The device is available in pact QFN4×4-32 package.
Ordering Information
SY9329
- (-
- )- Temperature Code Pa cka ge Code Optional Spec Code
Ordering Number Package type
Note
SY9329BQFC QFN4×4-32
Features
:
- Bidirectional Power Delivery: Source Mode and Sink Mode
- 4V to 28V Input Voltage Range
- Low RDS(ON) for Internal Switches: 25mΩ
- Internal Soft-start
- 8-bit ADC for Output Voltage, Input Voltage and VBUS Output Current Detection
- Fully Protected for Output Over Current, Short- circuit and Over-temperature
- I2C patible Interface
- Support Interrupt for Status Feedback
- Selectable Switching Frequency:
250k Hz, 500k Hz, 750k Hz, 1MHz
- Selectable VBUS Output Voltage:
5V, 9V, 10V, 12V, 15V, 20V
- Selectable Inductor Current Limit and VBUS Output Current Limit
- pact Package: QFN4×4-32
- UL Certificate Number: E491480
- UL 2367...
