SG-Micro SGM611A13

Beschreibung

The SGM611A13 is a high-efficiency high-frequency synchronous Buck DC/DC converter with a wide input voltage range of 4.5V to 16V and a wide output current range, optimized for compact solutions. With an internally compensated constant on-time (COT) control mode architecture, ultra-fast dynamic response is achieved, and loop stabilization is guaranteed with ease. The switching frequency of the converter can be set to 600kHz, 800kHz or 1000kHz with a MODE pin, which allows the converter frequency to stay at a fixed value independent of the input and output voltages. The SGM611A13 has voltage tracking capability in which output voltage can track the voltage applied at the TRK/REF pin. A ceramic capacitor, which determines the soft-start time, should be placed as close to TRK/REF pin as possible. The power-good (PGOOD pin) is an open-drain output that is provided to signal the status of the output voltage to the downstream system. When the input supply is unable to power the device, the VPG can be clamped low by itself with external pull-up resistor. The device integrates various protection features such as over-voltage protection, over-current protection, input under-voltage lockout and thermal shutdown. In addition, the synchronous rectifier supports short circuit protection which further improves the robustness of the device. The SGM611A13 is available in a Green TQFN-3×4-21L package.

Eigenschaften

• Adaptive COT (Constant On-Time) for Ultra-Fast Transient Response
• Wide Input Voltage Range: 4.5V to 16V
• Wide Output Adjustable Voltage Range: 0.6V to (90% × VIN) -with an Upper Limit of 5.5V
• Selectable Switching Frequency: 600kHz, 800kHz and 1000kHz
• Remote Differential Sense of Output Voltage
• Adjustable Current Limit Level
• Output Current: 12A
• Integrated Low RDSON Power FETs
• Stable with Low-ESR Output Capacitor
• 1% Reference Voltage at TJ = 0℃ to +85℃
• 1.5% Reference Voltage at TJ = -40℃ to +125℃
• Programmable Pulse Saving Operation or Forced CCM
• Outstanding Load Regulation
• Power Good Open-Drain Output
• Output Voltage Tracking Capability
• Output Discharge Function
• Adjustable Soft-Start Time from 0.91ms Timer
• Safe Pre-Bias Startup Capability
• Available in a Green TQFN-3×4-21L Package

Typische Anwendungen

• General Purpose Point-of-Load
• Telecom, Base Stations
• Sever, Computing, Storage, SSD

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers