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AC/DC- und DC/DC-Wandler (integrierter FET)

TPS568215OA

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4,5-V- bis 17-V-, 8-A-Synchron-SWIFT™-Abwärtswandler mit D-CAP3-Steuerung und Out-of-Audio™-Modus

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Datenblatt

TPS568215OA

AKTIV
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Produktdetails

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 17 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
VQFN-HR (RNN) 18 12.25 mm² 3.5 x 3.5
  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable FSW of 400 kHz, 800 kHz or 1.2 MHz
  • Out-of-Audio Feature to Keep Switching Frequency Out of Audio Frequency Range
  • Adjustable Current Limit Settings with Hiccup Re-start
  • 0.6 V ±1% Reference Voltage Across Full Temperature Range
  • Optional External 5-V Bias Support for Enhanced Efficiency
  • D-CAP3™ Control Mode for Fast Transient Response
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports all Ceramic Capacitors
  • Monotonic Startup into Pre-biased Outputs
  • Adjustable Soft Start with a Default 1-ms Soft Start Time
  • –40°C to 150°C Operating Junction Temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN Package
  • Integrated 19-mΩ and 9.4-mΩ MOSFETs
  • Selectable FSW of 400 kHz, 800 kHz or 1.2 MHz
  • Out-of-Audio Feature to Keep Switching Frequency Out of Audio Frequency Range
  • Adjustable Current Limit Settings with Hiccup Re-start
  • 0.6 V ±1% Reference Voltage Across Full Temperature Range
  • Optional External 5-V Bias Support for Enhanced Efficiency
  • D-CAP3™ Control Mode for Fast Transient Response
  • 0.6 V to 5.5 V Output Voltage Range
  • Supports all Ceramic Capacitors
  • Monotonic Startup into Pre-biased Outputs
  • Adjustable Soft Start with a Default 1-ms Soft Start Time
  • –40°C to 150°C Operating Junction Temperature
  • Small 3.5-mm × 3.5-mm HotRod™ QFN Package

The TPS568215OA is TI's smallest monolithic 8-A synchronous buck converter with an adaptive on-time D-CAP3™ control mode. The device integrates low RDS(on) power MOSFETs that enable high efficiency and it offers ease-of-use with minimal external component count for space-conscious power systems. Key features include a very accurate reference voltage, fast load transient response, Out-of-Audio mode, adjustable current limit and no requirement for external compensation. A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS568215OA is available in a thermally enhanced 18-pin HotRod™ QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215OA is pin to pin compatible with TPS568215 and TPS56C215 which gives the user flexibility to pick solutions from 6A to 12A in the same footprint.

The TPS568215OA is TI's smallest monolithic 8-A synchronous buck converter with an adaptive on-time D-CAP3™ control mode. The device integrates low RDS(on) power MOSFETs that enable high efficiency and it offers ease-of-use with minimal external component count for space-conscious power systems. Key features include a very accurate reference voltage, fast load transient response, Out-of-Audio mode, adjustable current limit and no requirement for external compensation. A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS568215OA is available in a thermally enhanced 18-pin HotRod™ QFN package and is designed to operate from –40°C to 150°C junction temperature. TPS568215OA is pin to pin compatible with TPS568215 and TPS56C215 which gives the user flexibility to pick solutions from 6A to 12A in the same footprint.
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Technische Dokumentation

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* Data sheet TPS568215OA 4.5-V to 17-V Input , 8-A Synchronous Step-Down SWIFT™ Converter datasheet PDF | HTML 26 Jan 2017

Design und Entwicklung

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Evaluierungsplatine

TPS568215EVM-762 — TPS568215 Synchron-Abwärts-SWIFT™-Wandler – Evaluierungsmodul

TPS568215EVM-762 is an 8 A synchronous converter evaluation module (EVM).  The EVM generates a 1.2 V output voltage from a nominal 12 V input.  The input voltage range is 4.5 V to 17 V with a typical start up voltage of 4.2 V.  The circuit is set upfor default operation frequency of (...)
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Simulationsmodell

TPS568215 PSpice Transient Model

SLVMBT9.ZIP (123 KB) - PSpice Model
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VQFN-HR (RNN) 18 Ultra Librarian
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