SY7901
SY7901 is High Efficiency 500kHz 25V PWM Controller manufactured by Silergy.
High Efficiency 500k Hz, 25V PWM Controller with DC Input Current Limit
General Description
The SY7901 is a current mode DC/DC controller targeted for Boost, Sepic, Flyback and Forward applications. The SY7901 has an accurate DC input current limit. External pensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.
Ordering Information
- (-
- )- Temperature Code Package Code Optional Spec Code
Ordering Number Package type Note
SY7901DBC
DFN3×3-10 ----
Features
- Input Voltage Range 3V to 25V
- 500k Hz Fixed Switching Frequency
- An Accurate DC Input Current Limit
- External pensation
- Internal Soft-start Limits the Inrush Current
- Integrated Low Side Driver: 1.5A Sourcing and 3A
Sinking
- Ro HS pliant and Halogen Free
- pact Package: DFN3×3-10
Applications
- GPS Navigation Systems
- Handheld Devices
- Portable Media Player
Typical Applications
VIN CIN
R4 C4
CSS SS
ON/OFF
C1
C2...
