(1) Additional temperature ranges are available - contact factory
DescriptionAs a member of the SWIFT? family of DC/DC regulators, the TPS5450MDDAREP 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 feed-forward 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 TPS5450MDDAREP feedback loop is internally compensated.
The TPS5450MDDAREP device is available in a thermally enhanced, 8-pin SOIC PowerPAD? package. TI provides evaluation modules and software tools to aid inachieving high-performance power supply designs to meet aggressive equipment development cycles.
Feature
- Qualified for Automotive Applications
- Wide Input Voltage Range: 5.5 V to 36 V
- Up to 5-A Continuous (6-A Peak) Output Current
- High Efficiency Greater than 90% Enabled by110-m Integrated MOSFET Switch
- Wide Output Voltage Range: Adjustable Down to1.22 V with 1.5% Initial Accuracy
- Internal Compensation Minimizes ExternalParts Count
- Fixed 500-kHz Switching Frequency for SmallFilter Size
- 18-μA Shutdown Supply Current
- Improved Line Regulation and Transient Responseby Input Voltage Feed Forward
- System Protected by Overcurrent Limiting,Overvoltage Protection, and Thermal Shutdown
- Available in Small Thermally Enhanced 8-PinSOIC PowerPAD? Package
- For SWIFT? Documentation, Application Reportsand Design Software, See the TI Website at www.ti.com/swift
- APPLICATIONS
- High-Density Point-of-Load Regulators
- LCD Displays, Plasma Displays
- Battery Chargers
- 12-V/24-V Distributed Power Systems
- SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
- Controlled Baseline
- One Assembly/Test Site
- One Fabrication Site
- Available in Military (–55°C/125°C) Temperature Range(1)
- Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
(1) Additional temperature ranges are available - contact factory
DescriptionAs a member of the SWIFT? family of DC/DC regulators, the TPS5450 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 feed-forward 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 feedback loop is internally compensated.
The TPS5450 device is available in a thermally enhanced, 8-pin SOIC PowerPAD? package. TI provides evaluation modules and software tools to aid inachieving high-performance power supply designs to meet aggressive equipment development cycles.
