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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 15.5 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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Data­sheet
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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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744325120
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.2 µH, 32.6 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
Inductance1.2 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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