Product details

Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 15 Iout (Max) (A) 6 Iq (Typ) (uA) 600 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 1600 Features Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (C) -55 to 125 Rating HiRel Enhanced Product Regulated outputs (#) 1
Vin (Min) (V) 4.5 Vin (Max) (V) 17 Vout (Min) (V) 0.6 Vout (Max) (V) 15 Iout (Max) (A) 6 Iq (Typ) (uA) 600 Switching frequency (Min) (kHz) 200 Switching frequency (Max) (kHz) 1600 Features Enable, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (C) -55 to 125 Rating HiRel Enhanced Product Regulated outputs (#) 1
VQFN (RHL) 14 12 mm² 3.5 x 3.5
  • Integrated 26-mΩ and 19-mΩ MOSFETs
  • Split power rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz switching frequency
  • Synchronizes to external clock
  • 0.6V ±1% voltage reference overtemperature
  • Hiccup current limit
  • Monotonic start-up into prebiased outputs
  • Adjustable slow start and power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout
  • Pin compatible with TPS54620

  • For SWIFT™ documentation, visit http://www.ti.com/swift
  • Create a custom design using the TPS54622-EP with the WEBENCH Power Designer
  • Integrated 26-mΩ and 19-mΩ MOSFETs
  • Split power rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz switching frequency
  • Synchronizes to external clock
  • 0.6V ±1% voltage reference overtemperature
  • Hiccup current limit
  • Monotonic start-up into prebiased outputs
  • Adjustable slow start and power sequencing
  • Power good output monitor for undervoltage and overvoltage
  • Adjustable input undervoltage lockout
  • Pin compatible with TPS54620

  • For SWIFT™ documentation, visit http://www.ti.com/swift
  • Create a custom design using the TPS54622-EP with the WEBENCH Power Designer

The TPS54622-EP device in thermally enhanced 3.5-mm × 3.5-mm VQFN package is a full-featured 17-V, 6-A synchronous step-down converter 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 by selecting a high switching frequency, reducing the footprint of the inductor.

The output voltage start-up 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 that prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time.

The TPS54622-EP device in thermally enhanced 3.5-mm × 3.5-mm VQFN package is a full-featured 17-V, 6-A synchronous step-down converter 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 by selecting a high switching frequency, reducing the footprint of the inductor.

The output voltage start-up 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 that prevents current runaway. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time.

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Technical documentation

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Type Title Date
* Data sheet TPS54622-EP 17-V Input, 6-A Output Synchronous Step Down Switcher datasheet 14 Dec 2020
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019

Design & development

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Evaluation board

TPS54622EVM-012 — Evaluation Module for TPS54622 Synchronous Step Down SWIFT™ Converter

The TPS54622EVM-012 is a fully assembled and tested circuit for evaluating the TPS54622 Synchronous Step Down SWIFT™ Converter with Hiccup Overcurrent Protection. The TPS54622EVM-012 operates from a 8V to 17V input and provides a 3.3V output at 6A.
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Simulation model

TPS54622-EP PSpice Unencrypted Transient Model

SLVMDH6.ZIP (82 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
VQFN (RHL) 14 View options

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