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17V Input, 9A Synchronous Step-Down Regulator with Voltage Scaling


Package | PIN: HTSSOP (PWP) | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $3.28
10-24 $2.95
25-99 $2.75
100-249 $2.47
250-499 $2.30
500-749 $2.01
750-999 $1.74
1000+ $1.70


  • D-CAP2™ Control
    • Input Voltage Range: 4.5V to 17V
    • SwitchingFrequency: 500kHz
    • Optimized for a 1.0µH to 2.2µHInductor
  • ±1% Output Voltage Accuracy
  • Features via I2C Compatible Interface
    • Output Voltage (VID):0.6V to 1.87V in 10mV
    • Auto-Skip Eco-mode™ON/OFF (Light-load)
    • Current Limit Target: 40% to160%
    • Enabling IC, Reading-back Power-good
    • Hiccup ModeProtection ON/OFF
  • IC Terminal Features
    • Start-up by Using ExternalResistors
      Output Voltage with VFB Pin: 0.6V to 1.87V
    • AdjustableSoft-start,
      Monotonic Pre-BiasedStart-up
    • Power-good
    • I2C AddressProgramming (2bits)
  • Cycle-by-Cycle Overcurrent Limiting Control
  • Thermal Shutdown (TSD)
  • Undervoltage Lockout (UVLO)
  • TSSOP Package (PWP) with PowerPAD™

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Texas Instruments  TPS56920PWPR

The TPS56X20 is a synchronous DC-DC converter IC (integrated circuit) with a voltagescaling control to power up micro-processors (MCUs) requiring core voltage(VCORE) tune-ups. After the initial power-up, the output voltage can beprogrammed/scaled by VID codes sent over an I2C compatible bus.

This step-down (buck) converter employs an adaptive on-time D-CAP2 mode control whichprovides a very fast transient response with no external components. Unlike traditionalvoltage-/current-mode controls, the D-CAP2 supports seamless transition between PWM mode for higherload and Eco-mode™ for light load. Eco-mode maintains highefficiency in light-load.

The TPS56X20 supports both ultra-low ESR ceramic capacitors and low equivalent seriesresistance (ESR) output capacitors, such as POSCAP or SP-CAP. The device is optimized for a small1.0µH to 2.2µH inductor saving PCB area.

The TPS56X20 devices are available in the HTSSOP package.