High Efficiency 1.5MHz, 3A, Ultra Fast Dynamic Response Buck
![]()
- Parameters
- Features
- Description
| Part number |
SY20124QWC |
| Channel(#) |
1 |
| Vin (min) (V) |
2.7 |
| Vin (max) (V) |
5.5 |
| Switching frequency (min)(kHz) |
1500 |
| Switching frequency (max)(kHz) |
1500 |
| Vout (min) (V) |
0.6 |
| Vout (max) (V) |
5 |
| 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)(%) |
100 |
| Operation mode |
Auto PFM |
| Iq (typ) (uA) |
65 |
| Features |
Power good,Output discharge |
| Package |
QFN1.5×1.5-7 |
| Operating temperature range(°C) |
-40 to 125 |
| Functional safety category |
|
- 2.7~5.5V Input Voltage Range
- 65µA Low Quiescent Current
- Ultra Fast Load Transient Speed
- Low RDS(ON) for Internal Switches (Top/Bottom) 85mΩ /50mΩ
- High Switching Frequency 1.5MHz Minimizes the External Components
- Internal Soft-start Limits the Inrush Current
- Reliable Short Circuit Protection
- Hic-cup Mode Protection
- Reliable OVP and OTP Protection
- Output Auto Discharge Function
- RoHS Compliant and Halogen Free
- Compact Package: QFN1.5×1.5-7
The SY20124 and SY20124L are high efficiency 1.5MHz synchronous step down DC/DC regulators capable of delivering up to 3A output current. The SY20124 and SY20124L can operate over a wide input voltage range from 2.7V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
Low output voltage ripple, small external inductor and capacitor sizes are achieved with 1.5MHz switching frequency.
Evaluation Board
-
Photo of evaluation board
-
Photo of evaluation board
-
Photo of evaluation board
The EVB_ SY20124QWC is intended for evaluating 1.5MHz, 3A, 2.7~5.5V input, 1.8V output synchronous Buck regulator. It features Enable control.
