SY26151 Datasheet Summary
High Efficiency Fast Response, 1.5A, 18V Input Synchronous Buck Converter
General Description
The SY26151 high efficiency 750kHz synchronous Buck converter operates over a wide input voltage range from 4.5V to 18V, and can deliver up to 1.5A output current. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss.
The SY26151 adopts constant on-time and valley current control to achieve fast transient response for applications with high step-down ratios and high efficiency at light loads. It also provides cycle-by-cycle current limit and over temperature protection.
The SY26151 is highly integrated, so only the input and output capacitors, the inductor, and the feedback resistors need to be selected for the targeted application specifications.
The SY26151 is available in a pact DFN2x2-8 package.
Features
- Low RDS(ON) for Internal MOSFETs: 80mΩ Top, 40mΩ Bottom
- Wide Input Voltage Range: 4.5V ~ 18V
- Up to 1.5A Output Current
- ±1.5% Reference Accuracy
- Internal Soft-Start Limits the Inrush Current
- 750kHz Switching Frequency
- Constant On-Time and Valley Current Control to
Achieve Fast Transient Response.
- Cycle-by-Cycle Peak and Valley Current Limit
Protection
- Hic-Cup Mode Output Under Voltage Protection
- Auto-Recovery Mode Over Temperature Protection
- Input Under Voltage Lockout (UVLO)
- Startup from Pre-Biased Output
- Power Good Indicator
- RoHS pliant and Halogen Free
- MSL Rating: MSL1 (DFN2x2-8)
Applications
- Set Top Box
- Portable TV
- Access Point Router
- DSL Modem
- LCD...