| Part number | SA22900QEQ |
|---|---|
| Channel(#) | 2 |
| Vin (min) (V) | 5 |
| Vin (max) (V) | 50 |
| Topology | Dual-phase boost |
| Switching frequency (min)(kHz) | 50 |
| Switching frequency (max)(kHz) | 1100 |
| Vout (min) (V) | 5 |
| Vout2 (min)(V) | 5 |
| Vout (max) (V) | 50 |
| Vout2 (max )(V) | 50 |
| Vref accuracy (±%) | 1 |
| Vout accuracy(±%) | |
| Control mode | Peak current mode |
| Duty cycle (max)(%) | 90 |
| Operation mode | PWM/PFM |
| Iq (typ) (uA) | 3000 |
| Features | Spread spectrum,Input voltage tracking,Programmable dead time,Programmable minimum on time,Selectable phase drop and add |
| Package | QFN5×5-32 |
| Operating temperature range(°C) | -40 to 125 |
| Functional safety category |
The SA22900 is a dual-phase stackable synchronous boost controller. It operates over a wide input voltage range from 5V to 50V and utilizes constant frequency peak current mode control. The SA22900 operates at a switching frequency ranging from 50kHz to 1.1MHz per phase and can be synchronized to an external clock. It supports single-phase, dual-phase, and 4-phase operation to reduce output ripple and capacitance. Additionally, the spread spectrum function can be used to minimize peak emissions, resulting in lower electromagnetic interference (EMI).
The SA22900 features external soft-start, enable control, and an open-drain power good indicator. It also includes comprehensive protection features, such as cycle-by-cycle overcurrent protection, input overvoltage protection, output overvoltage protection, and thermal shutdown for reliable operation. The fault protection response can be configured for either latch-off or hiccup recovery.
The SA22900 is available in compact QFN5×5-32 package.
| Title | Date |
|---|---|
| DS_SA22900 Datasheet | 2026-08-07 |
| EVB_SA22900QEQ EVB User Guide | 2026-08-07 |
| Automotive_Solutions_Q2_2026 | 2026-06-12 |
