| Vin (Min) (V) | 4.5 |
| Vin (Max) (V) | 20 |
| Vout (Min) (V) | 1.8 |
| Vout (Max) (V) | 1.8 |
| Iout (Max) (A) | 3 |
| Iq (Typ) (uA) | 9000 |
| Switching frequency (Min) (kHz) | 250 |
| Switching frequency (Max) (kHz) | 700 |
| Features | Enable, Phase Interleaving, Power Good, Synchronous Rectification |
| Rating | HiRel Enhanced Product |
| Regulated outputs (#) | 1 |
| Control mode | Voltage Mode |
| Duty cycle (Max) (%) | 80 |
- 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.
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.
