| Part number | SY81153BART |
|---|---|
| Channel(#) | 1 |
| Vin (min) (V) | 4.5 |
| Vin (max) (V) | 18 |
| Switching frequency (min)(kHz) | |
| Switching frequency (max)(kHz) | 1200 |
| Vout (min) (V) | 0.6 |
| Vout (max) (V) | 9.2 |
| 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)(%) | |
| Operation mode | FCCM |
| Iq (typ) (uA) | 160 |
| Features | Hic-Cup UVP; Auto-Recovery OTP; UVLO |
| Package | SOT563 |
| Operating temperature range(°C) | -40°C to 125°C |
| Functional safety category |
The SY81153B high efficiency 1200kHz synchronous buck converter operates over a wide input voltage range, and can deliver an output current up to 3A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 1200kHz pseudo-constant switching frequency enables using small external inductor and capacitor values.
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
EVB_SY81153BART_1 is intended for evaluating 3A, 18V, 1200kHz synchronous buck converter.
| Title | Date |
|---|---|
| Automotive_Solutions_Q2_2026 | 2026-06-12 |
| Silergy_Catalog_Q2_2026 | 2026-06-12 |
| SOT563 | 2021-09-27 |
