High Efficiency Fast Response, 10A, 25V Input Synchronous Buck Converter with 100mA 3.3V LDO
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- Parameters
- Features
- Description
| Part number |
SY83010YKQ |
| Channel(#) |
2 |
| Vin (min) (V) |
4.5 |
| Vin (max) (V) |
25 |
| Switching frequency (min)(kHz) |
510 |
| Switching frequency (max)(kHz) |
690 |
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
12.5 |
| Iout (max) (A) |
10 |
| Vout2 (min)(V) |
3.15 |
| Vout2 (max )(V) |
3.45 |
| Iout2 (max)(A) |
0.1 |
| Vref accuracy (±%) |
±1% |
| Vout accuracy(±%) |
±1% |
| Control mode |
COT+Ripple |
| Duty cycle (max)(%) |
98% |
| Operation mode |
PFM/PFM+TM/USM Selectable |
| Iq (typ) (uA) |
25 |
| Features |
|
| Package |
QFN2.5×2.5-17 |
| Operating temperature range(°C) |
-40°C to 125°C |
| Functional safety category |
|
- Low RDS(ON) for Internal MOSFETs: 14mΩ Top, 6.5mΩ Bottom
- Wide Input Voltage Range: 4.5V ~ 25V
- Multiple Identity Selection: Fixed 5.1V, 3.338V or Adjustable Output Voltage
- ±1% 0.6V Reference under TJ = -40°C ~ 125°C
- 10A Continuous Output Current Capability
- 100mA LDO Current Capability
- Support 98% Duty Cycle Operation
- 25μA Low Quiescent Current
- 1Ω Integrated Bypass Switch
- 600kHz Pseudo-Constant Frequency
- Internal Soft-Start Limits the Inrush Current
- Support Smooth Startup with Pre-Biased Output
- Advanced Constant On-Time and Ripple-Based Control to Achieve Fast Transient Responses
- PFM/PFM+TM/USM Selectable Light Load Operation Mode
- Power Good Indicator
- Output Auto-Discharge Function
- Cycle-by-Cycle Valley, Peak and Reverse Over Current Protection (OCP) for Buck
- Latch-off Mode Output Under Voltage Protection (UVP) for Buck
- Latch-off Mode Output Over Voltage Protection (OVP) for Buck
- Latch-off Mode Over Temperature Protection (OTP) for Buck
- Auto-recovery Mode Output Under Voltage (UVP) Protection for LDO
- Auto-recovery Mode Over Temperature Protection (OTP) for LDO
- Input Under Voltage Lockout (UVLO)
- RoHS Compliant and Halogen Free
- Compact Package: QFN2.5×2.5-17
The SY83010 is a high efficiency synchronous buck converter operating over a wide input voltage range of 4.5V to 25V and capable of delivering up to 10A current. It integrates low RDS(ON) top and bottom MOSFETs to minimize the conduction loss. It operates at a pseudo-constant frequency of 600kHz, to enable the use of small size inductor and capacitors.
