The SGM612A12 is a wide 4.5V to 24V input voltage, 0.6V to 5.5V output voltage, 12A continues output current, synchronous Buck converter with integrated power MOSFETs. This device uses constant on-time (COT) control topology to get fast transient response.
The SGM612A12 has four selectable switching frequencies 500kHz, 800kHz, 1MHz and 1.2MHz by FS pin. The device has adjustable cycle-by-cycle valley over-current protection by CLM pin to meet various applications.
The SGM612A12 has a MODE pin to select power saving mode (PSM) or ultrasonic mode (USM) during light loading. In PSM, it could get high light loading efficiency by skip pulse. In USM, it could avoid acoustic noise.
The SGM612A12 provides OV (over-voltage), UV (under-voltage), OT (over-temperature) and UVLO (under-voltage lockout) protections combined with power-good indicator and build-in output discharge function.
The SGM612A12 is available in a Green TQFN-3×4-19L package.
- 4.5V to 24V Wide Input Voltage Range
- 0.6V to 5.5V Output Voltage Range
- Supports 12A Continues Output Current
- Low RDSON MOSFET Switches (12mΩ/5mΩ)
- 0.6V Reference Voltage and ±1% Accuracy at +25℃
- 56μA (TYP) Low Quiescent Current
- 500kHz, 800kHz, 1MHz and 1.2MHz (TYP) Switching Frequency Selection via FS Pin
- Selectable 20A, 26A, 33A (TYP) Cycle-by-Cycle Valley Over-Current Protection via CLM Pin
- Optional PSM and USM for Light-load Operation via MODE Pin
- Adjustable Soft Start Time
- Constant On-Time (COT) Control for Fast Transient Response
- Support All Low ESR MLCC Output Capacitor
- Power Good Indicator
- Integrated Output Discharge Function
- Latch-off Protection for UV and OV
- Non-Latch Protection for OT and UVLO
- Built-In Output Discharge Function
- Available in a Green TQFN-3×4-19L Package
Laptops and Notebook Computers
Industrial Low Power Systems
