High Efficiency Fast Response, 4A, 23V Input Synchronous Step Down Regulator
- Parameters
- Features
- Description
Part Number | SY21145RAC |
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Vin_min (V) | 4 |
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Vin_max (V) | 23 |
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Vo_min (V) | 0.6 |
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Io_max (A) | 4 |
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Vref Accuracy | ±1% |
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Fsw (MHz) | 0.6 |
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Iq (uA) | 121 |
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Package | QFN3x3-20 |
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Protection Mode | OVP,Latch-off SCP |
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Features / Special Function | Power Good Indicator,100mA LDO,Auto-Discharge |
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- Low RDS(ON) for Internal Switches (Top/Bottom): 85/35mΩ
- Wide Input Voltage Range: 4~23V
- Instant PWM Architecture to Achieve Fast Transient Responses
- Internal 600µs Soft-start Limits the Inrush Current
- Pseudo-constant Frequency: 500kHz
- 4A Output Current Capability
- ±1% Internal Reference Voltage
- Optional Bypass Input
- Power Good Indicator
- Output Discharge Function
- Output Current Limit Protection
- Latch off Mode Output Under Voltage Protection
- Latch off Mode Output Over Voltage Protection
- Programmable Bottom FET Current Limit
- Input Under Voltage Lock-out(UVLO)
- Latch off Mode Over Temperature Protection
- RoHS Compliant and Halogen Free
- Compact Package: QFN3×3-20
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY21145RAC is intended for evaluating fast response, 4A, 23V Input synchronous Buck regulator.
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