| Part number | SY20121ARC |
|---|---|
| Channel(#) | 1 |
| Vin (min) (V) | 2.6 |
| Vin (max) (V) | 5.5 |
| Switching frequency (min)(kHz) | 2000 |
| Switching frequency (max)(kHz) | 2000 |
| Vout (min) (V) | 0.6 |
| Vout (max) (V) | 5 |
| Iout (max) (A) | 1.5 |
| 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) | 55 |
| Features | Output discharge |
| Package | SOT563 |
| Operating temperature range(°C) | -40 to 125 |
| Functional safety category |
SY20121 is a high efficiency 2.0MHz synchronous step down DC/DC regulator capable of delivering up to 1.5A output currents. It can operate over a wide input voltage range from 2.6V 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 2.0MHz switching frequency.
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY20121ARC is intended for evaluating 2.0MHz, 1.5A, 2.6~5.5V input, 1.8V output synchronous Buck regulator. It features Enable control.
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-02-09 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
| SOT563 | 2021-09-27 |
