• - 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 TPS55332 is a monolithic high-voltage switching regulator with integrated 3-A, 60-V power MOSFET. The device can be configured as a switch mode step-up power supply with voltage supervisor. Once the internal circuits have stabilized with a minimum input supply of 3.6 V, the system can then have an input voltage range from 1.5 V to 40 V, to maintain a fixed boost output voltage. For optimum performance, VIN/Vout ratios should be set such that the minimum required duty cycle pulse > 150 ns. The supervisor circuit monitors the regulated output and indicates when this output voltage has fallen below the set value. The TPS55332 has a switching frequency range from 80 kHz to 2.2 MHz, allowing the use of low profile inductors and low value input and output capacitors.

特性

• Withstands Transients up to 60 V, Boost Input Operating Range of 1.5 V to 40 V (VIN)
• Peak Internal Switch Current: 5.7 A (typ)
• 2.5 V ± 1.5% Feedback Voltage Reference
• 80 kHz to 2.2 MHz 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
• External Compensation for Wide Bandwidth Error Amplifier
• Programmable Power on Reset Delay
• Reset Function Filter Time for Fast Negative Transients
• Programmable Undervoltage Output Monitoring, Issuance of Reset if Output Falls Below Set Threshold
• Thermal Shutdown to Protect Device During Excessive Power Dissipation
• ILIM Threshold Protection (Current Limit)
• Operating Junction Temperature Range: –40°C to 150°C
• Thermally Enhanced 20-Pin HTSSOP PowerPAD™ Package
• APPLICATIONS
  • Lighting
  • Battery Powered Applications
  • Qualified for Automotive Applications