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reference designTPS568215

Texas Instruments TPS568215

TPS568215 4.5-V to 17-V Input , 8-A Synchronous Step-Down SWIFT™ Converter

Overview

TopologyBuck Converter
Input voltage4.5-17 V
Switching frequency400-1200 kHz
Output 13.3 V / 8 A
Output 25.5 V / 8 A
Output 31.2 V / 8 A
IC revisionA

Description

The TPS568215 is TI's smallest monolithic 8-Asynchronous buck converter with an adaptive on-timeD-CAP3™ control mode. The device integrates lowRDS(on) power MOSFETs that enable high efficiencyand offers ease-of-use with minimum externalcomponent count for space-conscious powersystems. Key features include a very accuratereference voltage, fast load transient response, autoskipmode operation for light load efficiency,adjustable current limit and no requirement forexternal compensation. A forced continuousconduction mode helps meet tight voltage regulationaccuracy requirements for performance DSPs andFPGAs. The TPS568215 is available in a thermallyenhanced 18-pin HotRod™ QFN package and isdesigned to operate from –40°C to 150°C junctiontemperature. TPS568215 is pin to pin compatible withTPS56C215 which gives the user flexibility to picksolutions from 6A to 12A in the same footprint.

Features

  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable FSW of 400 kHz, 800 kHz and 1.2 MHz
  • Adjustable Current Limit Settings with Hiccup Restart
  • 0.6 V ±1% Reference Voltage Across FullTemperature Range
  • Optional External 5-V Bias Support for EnhancedEfficiency
  • D-CAP3™ Control Mode for Fast TransientResponse
  • Selectable Forced Continuous Conduction Mode(FCCM) for Tight Output Voltage Ripple or Auto-Skipping Eco-mode™ for High Light-LoadEfficiency
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports Ceramic Output Capacitors
  • Monotonic Startup into Pre-biased Outputs
  • Adjustable Soft Start with a Default 1-ms SoftStart Time
  • –40°C to 150°C Operating Junction Temperature
  • Small 3.5-mm x 3.5-mm HotRod™ QFN Package
  • Supported at the WEBENCH® Design Center

Typical applications

  • Server and Storage, Set top Box, High-End DTV

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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744314047
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.47 µH, 31.9 A
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Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.47 µH
Performance Rated Current31.9 A
Saturation Current @ 10%9 A
Saturation Current @ 30%20 A
DC Resistance1.35 mΩ
Self Resonant Frequency235 MHz
MaterialSuperflux 
Packaging Unit1000 
–Check availability
744311068
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.68 µH, 20.9 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.68 µH
Performance Rated Current20.9 A
Saturation Current @ 10%9.5 A
Saturation Current @ 30%20 A
DC Resistance3.1 mΩ
Self Resonant Frequency105 MHz
MaterialSuperflux 
Packaging Unit1000 
–Check availability
744314110
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.1 µH, 19.6 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.1 µH
Performance Rated Current19.6 A
Saturation Current @ 10%6 A
Saturation Current @ 30%13 A
DC Resistance3.15 mΩ
Self Resonant Frequency135 MHz
MaterialSuperflux 
Packaging Unit1000 
–Check availability
744325120
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.2 µH, 32.6 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.2 µH
Performance Rated Current32.6 A
Saturation Current @ 10%12 A
Saturation Current @ 30%25 A
DC Resistance1.8 mΩ
Self Resonant Frequency75 MHz
MaterialSuperflux 
Packaging Unit700 
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744314150
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 16.4 A
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.5 µH
Performance Rated Current16.4 A
Saturation Current @ 10%4 A
Saturation Current @ 30%11 A
DC Resistance4.3 mΩ
Self Resonant Frequency110 MHz
MaterialSuperflux 
Packaging Unit1000 
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744325240
SPECWE-HCI SMT Flat Wire High Current Inductor, 2.4 µH, 18.6 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance2.4 µH
Performance Rated Current18.6 A
Saturation Current @ 10%6.9 A
Saturation Current @ 30%17 A
DC Resistance4.75 mΩ
Self Resonant Frequency67 MHz
MaterialSuperflux 
Packaging Unit700 
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744325330
SPECWE-HCI SMT Flat Wire High Current Inductor, 3.3 µH, 16.6 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance3.3 µH
Performance Rated Current16.6 A
Saturation Current @ 10%5 A
Saturation Current @ 30%15 A
DC Resistance5.9 mΩ
Self Resonant Frequency54 MHz
MaterialSuperflux 
Packaging Unit700 
–Check availability