Catalog
Automotive 5.5V to 36V, 5A Buck Converter
Key Features
• Qualified for Automotive ApplicationsWide Input Voltage Range: 5.5 V to 36 VUp to 5-A Continuous (6-A Peak) Output CurrentHigh Efficiency Greater than 90% Enabled by 110-mΩ Integrated MOSFET SwitchWide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial AccuracyInternal Compensation Minimizes External Parts CountFixed 500-kHz Switching Frequency for Small Filter Size18-µA Shutdown Supply CurrentImproved Line Regulation and Transient Response by Input Voltage Feed ForwardSystem Protected by Overcurrent Limiting, Overvoltage Protection, and Thermal Shutdown–40°C to 125°C Operating Junction Temperature RangeAvailable in Small Thermally Enhanced 8-Pin SOIC PowerPAD™ PackageCreate a custom design using the TPS5450-Q1 with theWEBENCH®Power DesignerQualified for Automotive ApplicationsWide Input Voltage Range: 5.5 V to 36 VUp to 5-A Continuous (6-A Peak) Output CurrentHigh Efficiency Greater than 90% Enabled by 110-mΩ Integrated MOSFET SwitchWide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial AccuracyInternal Compensation Minimizes External Parts CountFixed 500-kHz Switching Frequency for Small Filter Size18-µA Shutdown Supply CurrentImproved Line Regulation and Transient Response by Input Voltage Feed ForwardSystem Protected by Overcurrent Limiting, Overvoltage Protection, and Thermal Shutdown–40°C to 125°C Operating Junction Temperature RangeAvailable in Small Thermally Enhanced 8-Pin SOIC PowerPAD™ PackageCreate a custom design using the TPS5450-Q1 with theWEBENCH®Power Designer
Description
AI
The TPS5450-Q1 is a high-output-current PWM converter that integrates a low-resistance high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450-Q1 feedback loop is internally compensated.
The TPS5450-Q1 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
The TPS5450-Q1 is a high-output-current PWM converter that integrates a low-resistance high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection, and thermal shutdown. To reduce design complexity and external component count, the TPS5450-Q1 feedback loop is internally compensated.
The TPS5450-Q1 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tools to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
