SY8208A Datasheet PDF – Synchronous Step Down Regulator

This post explains for the regulator.

The Part Number is SY8208A, SY8208AQNC.

The Package is QFN3x3-10.

The function of this semiconductor is Synchronous Step Down Regulator.

Manufacturer: Silergy


SY8208A datasheet regulator


The SY8208A develops a high efficiency synchronous step-down DC-DC regulator capable of delivering 8A continuous, 16A peak current. The device operates over a wide input voltage range from 4V to 28V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

The SY8208A adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 800kHz under continuous conduction mode to minimize the size of inductor and capacitor. […]


SY8208A pinout


1. Low RDS(ON) for internal switches (top/bottom): 20/10 mΩ

2. Wide input voltage range: 4-28V

3. Instant PWM architecture to achieve fast transient responses

4. Internal 400uS softstart limits the inrush current

5. Pseudo-constant frequency: 800kHz.

6. 8A continuous/16A peak output current capability

7. ±1.5% 0.6V reference

8. Programmable peak current limit

9. Power good indicator

10. Output discharge function

11. Short circuit latch off protection

12. Over voltage latch off protection

13 Input UVLO

14. Over temperature protection

15. RoHS Compliant and Halogen Free

Typical Applications:

SY8208A circuit



2. Set Top Box

3. Notebook

4. High Power AP

SY8208A Datasheet PDF