• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TPS54362 is a step down switch mode power supply with voltage supervisor. Integrated input voltage line feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a cycle-by cycle current limit. A pulse skip mode operation under no load reduces the supply current to 65µA. Using the enable pin, the supply shutdown current is reduced to 1µA.

An open drain reset signal indicates when the nominal output drops below the threshold set by an external resistor divider network. The output voltage start up ramp is controlled by a soft start capacitor. There is an internal undervoltage shut down which is activated when the input supply ramps down to 2.

特性

• Withstands Transients up to 60V With an Operating
  Range of 3.6V to 48V
• Asynchronous Switch Mode Regulator With External
  Components (L and C), Load Current up to 3A (max)
• 0.8V ± 1.5% Voltage Reference
• 200kHz to 2.2MHz Switching Frequency
• High Voltage Tolerant Enable Input for ON/OFF State
• Soft Start on Enable Cycle
• Slew Rate Control on Internal Power Switch
• External Clock Input for Synchronization
• Pulse Skip Mode (PFM) During Light Output Loads With
  Quiescent Current = 65µA Typical (LPM Operation)
• External Compensation for Wide Bandwidth Error Amplifier
• Internal Undervoltage Lock Out UVLO
• Programmable Reset Power on Delay
• Reset Function Filter Time for Fast Negative Transients
• Programmable Overvoltage Output Monitoring
• Programmable Undervoltage Output Monitoring, Issuance of
  Reset if Output Falls Below Threshold
• Thermal Shutdown During Excessive Power Dissipation
• Switch Current Limit Protection
• Short Circuit and Overcurrent Protection of FET
• Junction Temperature Range: –40°C to 150°C
• Package: 20-pin HTSSOP PowerPAD™