High Efficiency, Fast Response, 8A, 29V Input Synchronous Buck Converter
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- Parameters
- Features
- Description
| Part number |
SY8388DTRHC |
| Channel(#) |
1 |
| Vin (min) (V) |
4 |
| Vin (max) (V) |
25 |
| Switching frequency (min)(kHz) |
580 |
| Switching frequency (max)(kHz) |
740 |
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
2.5 |
| Iout (max) (A) |
8 |
| Vout2 (min)(V) |
|
| Vout2 (max )(V) |
|
| Iout2 (max)(A) |
|
| Vref accuracy (±%) |
±1% |
| Vout accuracy(±%) |
|
| Control mode |
COT+Ripple |
| Duty cycle (max)(%) |
|
| Operation mode |
PFM/USM Selectable |
| Iq (typ) (uA) |
100 |
| Features |
Latch-Off Mode UVP, OVP, OTP; UVLO |
| Package |
QFN2.5×2.5-16 |
| Operating temperature range(°C) |
-40°C to 125°C |
| Functional safety category |
|
- Low RDS(ON) for Internal MOSFETs: 18mΩ Top, 8mΩ Bottom
- Wide Input Voltage Range: 4V ~ 25V
- Adjustable Output Voltage: 0.6V ~ 2.5V
- 8A Continuous Output Current Capability
- 660kHz Pseudo-Constant Frequency
- ±1% Internal Reference Voltage
- Internal 0.6ms Soft-Start Limits the Inrush Current
- Constant On-Time and Ripple-Based Control
- Excellent Dynamic Performance
- Integrated 1Ω Bypass Switch
- PFM/USM Selectable Light Load Operation Mode
- Power Good Indicator
- Output Auto-Discharge Function
- Adjustable Valley Current Limit Threshold by ILMT Pin
- Cycle-by-Cycle Peak and Valley Current Limit Protection
- Latch-Off Mode Output Under Voltage Protection
- Latch-Off Mode Output Over Voltage Protection
- Latch-Off Mode Over Temperature Protection
- Input Under Voltage Lockout (UVLO)
- RoHS Compliant and Halogen Free
- Compact package: QFN2.5×2.5-16
The SY8388DT is a high efficiency synchronous buck converter operating over a wide input voltage range of 4V to 25V and capable of delivering up to 8A current. It integrates low RDS(ON) top and bottom MOSFETs to minimize the conduction loss. It operates at a pseudo-constant frequency of 660kHz, to enable the use of small size inductor and capacitors. The SY8388DT also integrates a bypass switch which allows the VCC to be powered by external 3.3V power supply and further reduces the power consumption of the entire system.
Evaluation Board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
EVB_SY8388DTRHC_1 is intended for evaluating 660kHz, 8A output current, 25V input synchronous buck converter.
