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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS566250

現行

具 VID 控制的 4.5-V 至 17-V、6-A 同步降壓轉換器

立即訂購
產品規格表

TPS566250

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 1.87 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, I2C, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP2 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 900 Duty cycle (max) (%) 80 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 1.87 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Enable, I2C, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode D-CAP2 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 900 Duty cycle (max) (%) 80 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Integrated FETs Optimized for Lower Duty Cycle
    Applications
    • 44 mΩ (High Side) and 23 mΩ (Low Side)
  • Output Voltage Range: 0.6 V to 1.87 V with
    5.5-mV Feedback Voltage Step
  • VID Control with Multibyte Interface with
    Read-Back
  • ±1% Output Voltage at 25°C for VID Control at
    12 V VIN / 1.1 V VOUT
  • D-CAP2™ Control Mode
  • Advanced Eco-mode™ for High Efficiency at Light
    Load and Low Output Voltage Ripple
  • 650-kHz Switching Frequency
  • Fixed Soft Start: 1 ms
  • Monotonic Pre-Biased Soft Start
  • Hiccup Timer for Overload Protection
  • Integrated FETs Optimized for Lower Duty Cycle
    Applications
    • 44 mΩ (High Side) and 23 mΩ (Low Side)
  • Output Voltage Range: 0.6 V to 1.87 V with
    5.5-mV Feedback Voltage Step
  • VID Control with Multibyte Interface with
    Read-Back
  • ±1% Output Voltage at 25°C for VID Control at
    12 V VIN / 1.1 V VOUT
  • D-CAP2™ Control Mode
  • Advanced Eco-mode™ for High Efficiency at Light
    Load and Low Output Voltage Ripple
  • 650-kHz Switching Frequency
  • Fixed Soft Start: 1 ms
  • Monotonic Pre-Biased Soft Start
  • Hiccup Timer for Overload Protection

The TPS566250 is a synchronous buck converter that enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count and low standby current solution.

After the initial power-up, the output voltage can be changed by codes sent to the IC via an I2C compatible VID Control bus.

The main control loops of the TPS566250 use the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Advanced Eco-mode™ operation at light loads. Advanced Eco-mode™ allows the TPS566250 to maintain high efficiency during lighter load conditions. The TPS566250 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors.

The device offers on chip overcurrent, undervoltage lockout and thermal shutdown protection.

The TPS566250 is a synchronous buck converter that enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count and low standby current solution.

After the initial power-up, the output voltage can be changed by codes sent to the IC via an I2C compatible VID Control bus.

The main control loops of the TPS566250 use the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Advanced Eco-mode™ operation at light loads. Advanced Eco-mode™ allows the TPS566250 to maintain high efficiency during lighter load conditions. The TPS566250 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors.

The device offers on chip overcurrent, undervoltage lockout and thermal shutdown protection.
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類型 標題 日期
* Data sheet TPS566250 4.5-V to 17-V Input, 6-A Synchronous Step-Down Converter With VID Control datasheet (Rev. B) PDF | HTML 2015年 6月 8日

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參考設計

TIDA-050027 — 具有彈性分割功能，可最大限度地節省電源的多軌電視電源供應參考設計

TIDA-050027 參考設計是一款適用於電視 (TV) 平台的電源分配解決方案。透過提供模擬常見電壓軌和周邊設備的配置，此設計可作為跨多種電視電源架構的參考設計，包括 LCD 和 OLED 電視。在輸入端使用 eFuse 進行短路防護，而高效率降壓轉換器為核心軌、常開軌和周邊軌提供必要的電源。此外，對於特定周邊設備，低 IQ 低壓差穩壓器 (LDO) 提供乾淨的數位電源軌。除了這些電源元件外，負載開關也會透過控制電壓轉換速率控制電壓，以實現電源排序和省電。此外，整合式負載開關可提供自我防護，同時減少 BOM 數量和解決方案尺寸。
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