• 100-m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
• Use External Low-Side MOSFET or Diode
• Fixed-Output Versions - 1.2 V/1.5 V/1.8 V/ 2.5 V/3.3 V/5 V
• Internally Compensated for Low Parts Count
• Synchronize to External Clock
• 180° Out-of-Phase Synchronization
• Wide Pulse Width Modulation (PWM) Frequency - Fixed 250 kHz, 500 kHz, or Adjustable 250 kHz to 700 kHz
• Internal Slow Start
• Load Protected by Peak Current Limit and Thermal Shutdown
• Adjustable Undervoltage Lockout
• 16-Pin PowerPAD™ Thin Shrink Small-Outline Package (TSSOP) (PWP)
• APPLICATIONS
  • Industrial and Commercial Low-Power Systems
  • LCD Monitors and TVs
  • Computer Peripherals
  • Point-of-Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
• SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Available in Military (-55°C/125°C) Temperature RangeAdditional temperature ranges are available - contact factory
  • Extended Product Life Cycle
  • Extended Product-Change Notification
  • Product Traceability

SWIFT and PowerPAD are trademarks of Texas Instruments.

DESCRIPTION/ORDERING INFORMATION

The TPS5435x is a medium-output-current synchronous buck PWM converter with an integrated high-side MOSFET and a gate driver for an optional low-side external MOSFET. Features include a high-performance voltage error amplifier that enables maximum performance under transient conditions. The TPS5435x has an undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches a preset value, an internal slow-start circuit to limit in-rush currents, and a power-good (PWRGD) output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out-of-phase synchronization.

The TPS5435x devices are available in a thermally enhanced 16-pin PowerPAD Thin Shrink Small-Outline Package (TSSOP). TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power-supply designs to meet aggressive equipment development cycles.