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AC/DC & DC/DC converters (integrated FET)

TPS65273V

AKTIV

Zweifach-Synchron-Abwärtswandler, 4,5 bis 18 V Eingangsspannung, 3,5/3,5 A, mit I2C-gesteuertem VID

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TPS65273V

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, I2C, Light Load Efficiency, Phase Interleaving, Soft Start Adjustable, Synchronous Rectification, VID Interface Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 15 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.01
Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1600 Features Enable, I2C, Light Load Efficiency, Phase Interleaving, Soft Start Adjustable, Synchronous Rectification, VID Interface Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 15 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.01
HTSSOP (DAP) 32 89.1 mm² 11 x 8.1 VQFN (RHH) 36 36 mm² 6 x 6
  • 4.5-V to 18-V Wide Input Voltage Range
  • I2C Controlled 7-Bits VID Programmable
    Output Voltage from 0.68 V to 1.95 V with
    10-mV Steps for Each Buck; Output Voltage Can
    Also be Set By Resistor Divider
  • Programmable Slew Rate Control for Output Voltage
    Transition
  • Up to 3.5-A Maximum Continuous Output Current in
    Buck 1 and Buck 2
  • Buck 1 and Buck 2 can be Paralleled to Deliver
    up to 7-A Current
  • I2C Compatible Interface With Standard
    Mode (100 kHz) and Fast Mode (400 kHz)
  • I2C Read Back Power Good Status and Die
    Temperature Warning
  • Pulse Skipping Mode to Achieve High Efficiency
    in Light Load
  • Adjustable Switching Frequency
    200 kHz - 1.6 MHz Set by External Resistor
  • Dedicated Enable and Soft-Start for Each Buck
  • Peak Current-Mode Control with Simple Compensation
    Circuit
  • Cycle-by-Cycle Over Current Protection
  • 180° Out-of-Phase Operation to Reduce Input
    Capacitance and Power Supply Induced Noise
  • Over Temperature Protection
  • Available in 32-Pin Thermally Enhanced HTSSOP (DAP)
    and 36-Pin QFN 6-mm × 6-mm (RHH) Packages
  • 4.5-V to 18-V Wide Input Voltage Range
  • I2C Controlled 7-Bits VID Programmable
    Output Voltage from 0.68 V to 1.95 V with
    10-mV Steps for Each Buck; Output Voltage Can
    Also be Set By Resistor Divider
  • Programmable Slew Rate Control for Output Voltage
    Transition
  • Up to 3.5-A Maximum Continuous Output Current in
    Buck 1 and Buck 2
  • Buck 1 and Buck 2 can be Paralleled to Deliver
    up to 7-A Current
  • I2C Compatible Interface With Standard
    Mode (100 kHz) and Fast Mode (400 kHz)
  • I2C Read Back Power Good Status and Die
    Temperature Warning
  • Pulse Skipping Mode to Achieve High Efficiency
    in Light Load
  • Adjustable Switching Frequency
    200 kHz - 1.6 MHz Set by External Resistor
  • Dedicated Enable and Soft-Start for Each Buck
  • Peak Current-Mode Control with Simple Compensation
    Circuit
  • Cycle-by-Cycle Over Current Protection
  • 180° Out-of-Phase Operation to Reduce Input
    Capacitance and Power Supply Induced Noise
  • Over Temperature Protection
  • Available in 32-Pin Thermally Enhanced HTSSOP (DAP)
    and 36-Pin QFN 6-mm × 6-mm (RHH) Packages

The TPS65273V is a monolithic dual synchronous buck regulator with wide 4.5-V to 18-V operating input voltage that can operate in 5-, 9-, 12- or 15-V bus voltages and battery chemistries. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.

The TPS65273V has external feedback resistors that can be used for setting the initial start up voltage. The feedback voltage reference for this start-up option is 0.6 V. Once the VID DAC is updated via the I2C, the buck converter switches feedback resistors from external to internal. The output voltage in each buck can be programmable from 0.68 V to 1.95 V in 10-mV steps with I2C Controlled 7-Bits VID.

TPS65273V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning.

The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Two converters have clock signal with 180° out-of-phase.

Two bucks in TPS65273V can be paralleled to deliver up to 10-A load current by floating the MODE pin. Two phase operation in current sharing reduces system filtering capacitance and inductance, alleviates EMI and improves output voltage ripple and noise.

TPS65273V features dedicated enable pin when I2C interface is not used. Independent soft-start pin provides flexibility in power up programmability. Constant frequency peak current mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle over current protection and hiccup mode operation limit MOSFET power dissipation in short circuit or over loading fault conditions. Low side reverse over current protection also prevents excessive sinking current from damaging the converter.

TPS65273V also features a light load pulse skipping mode (PSM) that can be controlled by I2C or MODE pin configuration. The PSM mode allows a power loss reduction on the input power supplied to the system to achieve high efficiency at light loading.

The TPS65273V is available in a 32-pin thermally enhanced HTSSOP (DAP) package and 36-pin QFN 6-mm × 6-mm (RHH) package.

The TPS65273V is a monolithic dual synchronous buck regulator with wide 4.5-V to 18-V operating input voltage that can operate in 5-, 9-, 12- or 15-V bus voltages and battery chemistries. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.

The TPS65273V has external feedback resistors that can be used for setting the initial start up voltage. The feedback voltage reference for this start-up option is 0.6 V. Once the VID DAC is updated via the I2C, the buck converter switches feedback resistors from external to internal. The output voltage in each buck can be programmable from 0.68 V to 1.95 V in 10-mV steps with I2C Controlled 7-Bits VID.

TPS65273V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning.

The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Two converters have clock signal with 180° out-of-phase.

Two bucks in TPS65273V can be paralleled to deliver up to 10-A load current by floating the MODE pin. Two phase operation in current sharing reduces system filtering capacitance and inductance, alleviates EMI and improves output voltage ripple and noise.

TPS65273V features dedicated enable pin when I2C interface is not used. Independent soft-start pin provides flexibility in power up programmability. Constant frequency peak current mode control simplifies the compensation and provides fast transient response. Cycle-by-cycle over current protection and hiccup mode operation limit MOSFET power dissipation in short circuit or over loading fault conditions. Low side reverse over current protection also prevents excessive sinking current from damaging the converter.

TPS65273V also features a light load pulse skipping mode (PSM) that can be controlled by I2C or MODE pin configuration. The PSM mode allows a power loss reduction on the input power supplied to the system to achieve high efficiency at light loading.

The TPS65273V is available in a 32-pin thermally enhanced HTSSOP (DAP) package and 36-pin QFN 6-mm × 6-mm (RHH) package.
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Technische Dokumentation

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Alle anzeigen 3
Typ Titel Datum
* Data sheet 4.5V to 18V Input, 3.5A/3.5A Dual Synchronous Step-Down Converter datasheet (Rev. A) 16 Jan 2014
Application note Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) PDF | HTML 01 Apr 2019
User guide 4.5-V to 18-V Input, Dual 3.5-A Synchronous Step-Down Converter With I2C 20 Feb 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS65273VEVM — Evaluierungsmodul für synchronen TPS665273V Abwärtswandler

The Texas Instruments TPS65273VEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65273V Step-Down Converter. The TPS65273V is a monolithic dual synchronous buck converter with a wide 4.5V to 18V operating input voltage range that encompasses most (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

TPS65273VTEVM — Evaluierungsmodul für Abwärtswandler TPS65273V

The Texas Instruments TPS65273VTEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65273V Step-Down Converter. The TPS65273V is a monolithic dual synchronous buck converter with a wide 4.5V to 18V operating input voltage range that encompasses most (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
GUI für Evaluierungsmodul (EVM)

SLVC560 — TPS65273V EVM - GUI v1.0.0.0

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
AC/DC & DC/DC converters (integrated FET)
TPS65273V — Zweifach-Synchron-Abwärtswandler, 4,5 bis 18 V Eingangsspannung, 3,5/3,5 A, mit I2C-gesteuertem VID
Hardware-Entwicklung
Evaluierungsplatine
TPS65273VEVM — Evaluierungsmodul für synchronen TPS665273V Abwärtswandler
Herunterladen
Simulationsmodell

TPS65273V TINA-TI Average Reference Design

SLVMAA0.ZIP (57 KB) - TINA-TI Reference Design
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Simulationsmodell

TPS65273V Unencrypted PSpice Average Model Package (Rev. A)

SLVMA00A.ZIP (98 KB) - PSpice Model
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Gehäuse Pins Herunterladen
HTSSOP (DAP) 32 Optionen anzeigen
VQFN (RHH) 36 Optionen anzeigen
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

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  • REACH
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  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
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  • Werksstandort
  • Montagestandort

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