Conv DC-DC Single Step Down 4.5V to 20V 16-Pin HTSSOP EP T/R

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 under-voltage-lockout 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 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 TSSOP (PWP) PowerPAD package. 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.

100 mO, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current

Uses External Lowside MOSFET or Diode

Fixed Output Versions — 1.2V/1.5V/1.8V/2.5V/3.3V/5.0V

Internally Compensated for Low Parts Count

Synchronizes to External Clock

180° Out of Phase Synchronization

Wide 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 TSSOP PowerPAD™ Package

APPLICATIONS

• Industrial & Commercial Low Power Systems
• LCD Monitors and TVs
• Computer Peripherals
• Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors