High Efficiency 1.0MHz, 3A Synchronous Step Down Regulator
![]()
- Parameters
- Features
- Description
| Part number | SY20193QWC |
|---|
| Channel(#) | 1 |
|---|
| Vin (min) (V) | 2.7 |
|---|
| Vin (max) (V) | 5.5 |
|---|
| Switching frequency (min)(kHz) | 1000 |
|---|
| Switching frequency (max)(kHz) | 1000 |
|---|
| Vout (min) (V) | 0.6 |
|---|
| Vout (max) (V) | 3.3 |
|---|
| Iout (max) (A) | 3 |
|---|
| Vout2 (min)(V) | |
|---|
| Vout2 (max )(V) | |
|---|
| Iout2 (max)(A) | |
|---|
| Vref accuracy (±%) | 1 |
|---|
| Vout accuracy(±%) | |
|---|
| Control mode | COT+Ripple |
|---|
| Duty cycle (max)(%) | 70 |
|---|
| Operation mode | FCCM/PFM Selectable |
|---|
| Iq (typ) (uA) | 55 |
|---|
| Features | Power good,Output discharge |
|---|
| Package | QFN1.5×1.5-7 |
|---|
| Operating temperature range(°C) | -40 to 125 |
|---|
| Functional safety category | |
|---|
- Low RDS(ON) for Internal Switches (Top/Bottom) 85mΩ /50mΩ
- 2.7~5.5V Input Voltage Range
- 55µA Low Quiescent Current
- Ultra Fast Load Transient Speed
- High Switching Frequency 1.0MHz Minimizes the External Components
- Internal Soft-start Limits the Inrush Current
- Reliable Short Circuit Protection
- Output Auto Discharge Function
- RoHS Compliant and Halogen Free
- Compact Package: QFN1.5×1.5-7
SY20193 is a high efficient 1.0MHz synchronous step down DC/DC regulator capable of delivering up to 3A output current. The SY20193 can operate over a wide input voltage range from 2.7V to 5.5V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
The low output voltage ripple, the small external inductor and the capacitor sizes are achieved with 1.0MHz switching frequency.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY20193QWC is intended for evaluating 1.0 MHz, 3A, 2.7~5.5V input, 1.8V output synchronous Buck regulator. It features Enable control.
