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TPS65263

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Abwärtswandler, 4,5 bis 18 V Eingangsspannung 3/2/2 A Ausgangsstrom, mit I2C-gesteuerter DVS

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Datenblatt

TPS65263

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Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 17 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Light-load efficiency, Power good, Soft-start adjustable, Synchronous rectification, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00074 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 17 Vout (min) (V) 0.6 Features Adaptive/Dynamic Voltage Scaling, Adjustable current limit, Enable, Light-load efficiency, Power good, Soft-start adjustable, Synchronous rectification, UVLO adjustable Control mode current mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00074 Duty cycle (max) (%) 100
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • Operating input voltage range 4.5- to 18-V continuous output current 3 A/2 A/2 A
  • I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V with 10-mV voltage step for each buck
  • I 2C controlled VID voltage transition slew rate
  • I 2C read back power-good status, overcurrent warning for each buck
  • I 2C read back die temperature warning
  • I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
  • Feedback reference voltage 0.6 V ±1%
  • Fixed 600-kHz frequency
  • Dedicated enable and soft start pins for each buck
  • Thermal overloading protection
  • Operating input voltage range 4.5- to 18-V continuous output current 3 A/2 A/2 A
  • I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V with 10-mV voltage step for each buck
  • I 2C controlled VID voltage transition slew rate
  • I 2C read back power-good status, overcurrent warning for each buck
  • I 2C read back die temperature warning
  • I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
  • Feedback reference voltage 0.6 V ±1%
  • Fixed 600-kHz frequency
  • Dedicated enable and soft start pins for each buck
  • Thermal overloading protection

The TPS65263 incorporates triple synchronous buck converters with 4.5- to 18-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus or battery. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates in 600 kHz with 180° out-of-phase between buck1 and buck2, buck3 (buck2 and buck3 run in phase).

The initial startup voltage of each buck can be set with external feedback resistors. The output voltage of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I 2C controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.

Each buck in TPS65263 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the power good status, overcurrent warning and die temperature warning.

The TPS65263 features overvoltage, overcurrent, short-circuit, and overtemperature protection.

The TPS65263 incorporates triple synchronous buck converters with 4.5- to 18-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus or battery. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates in 600 kHz with 180° out-of-phase between buck1 and buck2, buck3 (buck2 and buck3 run in phase).

The initial startup voltage of each buck can be set with external feedback resistors. The output voltage of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I 2C controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.

Each buck in TPS65263 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the power good status, overcurrent warning and die temperature warning.

The TPS65263 features overvoltage, overcurrent, short-circuit, and overtemperature protection.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS65263, 4.5-V to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter with I2C Controlled Dynamic Voltage Scaling datasheet (Rev. C) PDF | HTML 17.05.2023
Anwendungshinweis Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) PDF | HTML 01.04.2019
Technischer Artikel There are more ways than you think to reduce conducted EMI PDF | HTML 17.04.2018
Anwendungshinweis TPS65250/1/2/3 LAYOUT GUIDE 15.01.2013

Design und Entwicklung

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Evaluierungsplatine

TPS65263EVM-645 — TPS65263EVM-Evaluierungsmodul

The TPS65263EVM-645 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65263. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.

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GUI für Evaluierungsmodul (EVM)

SLVC578 — TPS65263EVM GUI

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Simulationsmodell

TPS65263 PSpice Average Model

SLVMAA9.ZIP (74 KB) - PSpice-Modell
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Simulationsmodell

TPS65263 TINA average model

SLVMAE1.ZIP (8 KB) - TINA-TI Spice-Modell
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Simulationsmodell

TPS65263 TINA Average Ref Design

SLVMAE0.ZIP (383 KB) - TINA-TI-Referenzdesign
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Simulationsmodell

TPS65263 TINA transient model

SLVMAD9.ZIP (23 KB) - TINA-TI Spice-Modell
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Simulationsmodell

TPS65263 TINA Transient Ref design

SLVMAD8.ZIP (70 KB) - TINA-TI-Referenzdesign
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Simulationsmodell

TPS65263 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAA8A.ZIP (53 KB) - PSpice-Modell
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VQFN (RHB) 32 Ultra Librarian
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