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TPS566250

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具有 VID 控制的 4.5V 至 17V、6A 同步降压转换器

产品详情

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 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0009 Duty cycle (max) (%) 80
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 Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0009 Duty cycle (max) (%) 80
HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • 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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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS566250 4.5-V to 17-V Input, 6-A Synchronous Step-Down Converter With VID Control 数据表 (Rev. B) PDF | HTML 2015-6-8

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参考设计

TIDA-050027 — 具有灵活分区以尽可能实现节能的多轨电视电源参考设计

TIDA-050027 参考设计是适用于电视 (TV) 平台的配电解决方案。通过提供模拟常用电压轨和外设的配置,该设计可以用作包含 LCD 和 OLED 电视在内的多种电视电源架构的参考设计。在输入方面,电子保险丝用于短路保护,而高效的降压转换器为内核轨、常开电源轨和外设轨提供所需的电源。此外,低 IQ 低压降稳压器 (LDO) 为某些外设提供低噪声数字电源轨。除了这些电源元件,负载开关通过受控压摆率控制电压,实现电源时序和节省功耗。此外,集成负载开关提供自我保护,同时减少 BOM 数量并缩小解决方案尺寸。

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HSOIC (DDA) 8 Ultra Librarian

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