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TPS50601-SP Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
TPS50601-SP 1.6-V TO 6.3-V INPUT, 3-A/6-A SYNCHRONOUS STEP DOWN SWIFT™ CONVERTER Texas-Instruments
Texas Instruments Texas-Instruments
TPS50601-SP Datasheet PDF : TPS50601-SP pdf   
TPS50601-SP image

DESCRIPTION
The TPS50301 is a 6.3-V, 3-A and the TPS50601 is a 6.3-V, 6-A synchronous step down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, reducing the inductors footprint. The devices are offered in a thermally enhanced 20-pin ceramic, dual in-line flatpack package.
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.

FEATURES
• Peak Efficiency: 95% (VO = 3.3 V)
• Integrated 55-mΩ/50-mΩ MOSFETs
• Split Power Rail: 1.6 V to 6.3 V on PVIN
• Power Rail: 3 V to 6.3 V on VIN
• TPS50301-HT: 3 A
• TPS50601-SP: 6 A
• TPS50601-SP:
   SEL Latchup Immune to LET = 85 MeV-cm2/mg
• TPS50601-SP:
   Total Dose (TID) tolerance = 100kRad (Si)
• Flexible Switching Frequency Options:
   – 100-kHz to 1-MHz Adjustable Internal
      Oscillator
      – External Sync Capability from 100 kHz
      to 1 MHz
      – Sync Pin Can Be Configured as a 500-kHz
      Output for Master/Slave Applications
• 0   .795-V ±1.258% Voltage Reference at 25°C
• Monotonic Start-Up into Pre-Biased Outputs
• Adjustable Slow Start and Power Sequencing

• Power Good Output Monitor for Undervoltage
   and Overvoltage
• Adjustable Input Undervoltage Lockout
• For SWIFT™ Documentation, Visit
   //www.ti.com/swift

APPLICATIONS
• Point of Load Regulation
• TPS50601-SP: Rad Tolerant Applications
• TPS50301-HT: Down-Hole Drilling
• Supports Harsh Environment Applications
• TPS50301-HT Available in Extreme
   (–55°C to 210°C) Temperature Range
   TPS50601-SP Available in Military
   (–55°C to 125°C) Temperature Range (1)
• TPS50301-HT: Texas Instruments high
   temperature products utilize highly optimized
   silicon (die) solutions with design and process
   enhancements to maximize performance over
   extended temperatures.

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