9A Continuous/14A Peak, 28V Input, Synchronous Step Down Regulator with ±1A VTT LDO and ±10mA Buffered Reference
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- Parameters
- Features
- Description
| Part number | SY21240RAC |
|---|
| Channel(#) | 1 |
|---|
| Vin (min) (V) | 4 |
|---|
| Vin (max) (V) | 24 |
|---|
| Switching frequency (min)(kHz) | 600 |
|---|
| Switching frequency (max)(kHz) | 600 |
|---|
| Vout (min) (V) | 0.6 |
|---|
| Vout (max) (V) | 2.5 |
|---|
| Iout (max) (A) | 9 |
|---|
| Vout2 (min)(V) | |
|---|
| Vout2 (max )(V) | |
|---|
| Iout2 (max)(A) | |
|---|
| Vref accuracy (±%) | 1 |
|---|
| Vout accuracy(±%) | |
|---|
| Control mode | COT+Ripple |
|---|
| Duty cycle (max)(%) | 80 |
|---|
| Operation mode | Auto PFM |
|---|
| Iq (typ) (uA) | 85 |
|---|
| Features | Power good,Output discharge, LDO output,±10mA buffered reference |
|---|
| Package | QFN3×3-20 |
|---|
| Operating temperature range(°C) | -40 to 125 |
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| Functional safety category | |
|---|
- Low RDS(ON) for Internal Switches of the Regulator (Top/Bottom): 27/9mΩ
- 4~24V Input Voltage Range
- Instant PWM Architecture to Achieve Fast Transient Responses
- Internal 450µs Soft-start Limits the Inrush Current
- 600kHz Pseudo-Constant Switching Frequency
- PFM/USM Selectable Light Load Operation Mode
- Power Good Indicator
- 9A Continuous/14A Peak Output Current Capability of the Regulator
- ±1% 0.6V Reference
- ±1A Source/Sink Current Capability of the VTT LDO
- Buffered Low Noise ±10mA VTTREF Output
- Support VTT LDO High-Z in S3
- Output Tracking Discharge Function for the Regulator and VTT LDO
- Cycle-by-cycle Valley and Peak Current Limit Protection
- Latch-off Mode Output Under Voltage Protection
- Latch-off Mode Output Over Voltage Protection
- Latch-off Mode Over Temperature Protection
- Input UVLO and Bias UVLO
- 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
EVB_SY21240RAC_1 is intended for evaluating 600kHz, 9A continuous output current, 24V input synchronous Buck regulator with ±1A VTT LDO and ±10mA buffered reference.
