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TPS65320D-Q1

AKTIV

Abwärtswandler (Buck) für die Automobilindustrie mit 3,6 bis 36 V, 3,2, mit LDO-Regler, 280 mA, mit

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TPS65320D-Q1

AKTIV
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Produktdetails

Regulated outputs (#) 2 Configurability Hardware configurable Vin (min) (V) 3.6 Vin (max) (V) 36 Vout (min) (V) 1.1 Vout (max) (V) 20 Iout (max) (A) 3.2 Features Eco-mode, Enable, Overcurrent protection, Power good, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 1 Iq (typ) (mA) 0.155 Rating Automotive Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 2 Product type Microcontrollers
Regulated outputs (#) 2 Configurability Hardware configurable Vin (min) (V) 3.6 Vin (max) (V) 36 Vout (min) (V) 1.1 Vout (max) (V) 20 Iout (max) (A) 3.2 Features Eco-mode, Enable, Overcurrent protection, Power good, Thermal shutdown, UVLO fixed Step-up DC/DC converter 0 Step-down DC/DC converter 1 Step-down DC/DC controller 0 Step-up DC/DC controller 0 LDO 1 Iq (typ) (mA) 0.155 Rating Automotive Switching frequency (max) (kHz) 2500 Operating temperature range (°C) -40 to 125 Processor supplier Generic Processor name Generic Shutdown current (ISD) (typ) (µA) 2 Product type Microcontrollers
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • One High-VIN Step-Down DC-DC Converter
    • Input Range of 3.6 V to 36 V
    • 250-mΩ High-Side MOSFET
    • Maximum Load Current 3.2 A, Output Adjustable 1.1 V to 20 V
    • Adjustable Switching Frequency 100 kHz to 2.5 MHz
    • Synchronizes to External Clock
    • High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control Scheme
    • Maximum 140-µA Operating Quiescent Current
  • One Low-Dropout Voltage (LDO) Regulator
    • Input Range of 3 V to 20 V, With Auto-Source to Balance Efficiency and Lower Standby Current
    • 280-mA Current Capability With Typical 35-µA Quiescent Current in No-Load Condition
    • Power-Good Output (Push-Pull)
    • Low-Dropout Voltage of 300 mV at
      IO = 200 mA (Typical)
  • Overcurrent Protection for Both Regulators
  • Overtemperature Protection
  • 14-Pin HTSSOP Package With PowerPAD™ Integrated Circuit Package
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • One High-VIN Step-Down DC-DC Converter
    • Input Range of 3.6 V to 36 V
    • 250-mΩ High-Side MOSFET
    • Maximum Load Current 3.2 A, Output Adjustable 1.1 V to 20 V
    • Adjustable Switching Frequency 100 kHz to 2.5 MHz
    • Synchronizes to External Clock
    • High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control Scheme
    • Maximum 140-µA Operating Quiescent Current
  • One Low-Dropout Voltage (LDO) Regulator
    • Input Range of 3 V to 20 V, With Auto-Source to Balance Efficiency and Lower Standby Current
    • 280-mA Current Capability With Typical 35-µA Quiescent Current in No-Load Condition
    • Power-Good Output (Push-Pull)
    • Low-Dropout Voltage of 300 mV at
      IO = 200 mA (Typical)
  • Overcurrent Protection for Both Regulators
  • Overtemperature Protection
  • 14-Pin HTSSOP Package With PowerPAD™ Integrated Circuit Package

The TPS65320D-Q1 device is a combination of a high-VIN DC-DC step-down converter, referred to as the buck regulator, with an adjustable switch-mode frequency from 100-kHz to 2.5-MHz, and a high-VIN 280-mA low-dropout (LDO) regulator. The input range is 3.6 V to 36 V for the buck regulator, and 3 V to
36 V for the LDO regulator. The buck regulator has an integrated high-side MOSFET. The LDO regulator features a low-input supply current of 45-µA typical in no-load, also has an integrated MOSFET with an active-low, push-pull reset output pin. The input supply of the LDO regulator auto-source from the output of the buck regulator when it is in operation. Low-voltage tracking feature enables TPS65320D-Q1 to track the input supply during cold-crank conditions.

The buck regulator provides a flexible design to fit system needs. The external loop compensation circuit allows for optimization of the converter response for the appropriate operating conditions. A low-ripple pulse-skip mode reduces the no-load input-supply current to maximum 140 µA.

The device has built-in protection features such as soft start, current-limit, thermal sensing and shutdown due to excessive power dissipation. Furthermore, the device has an internal undervoltage-lockout (UVLO) function that turns off the device when the supply voltage is too low.

The TPS65320D-Q1 device is a combination of a high-VIN DC-DC step-down converter, referred to as the buck regulator, with an adjustable switch-mode frequency from 100-kHz to 2.5-MHz, and a high-VIN 280-mA low-dropout (LDO) regulator. The input range is 3.6 V to 36 V for the buck regulator, and 3 V to
36 V for the LDO regulator. The buck regulator has an integrated high-side MOSFET. The LDO regulator features a low-input supply current of 45-µA typical in no-load, also has an integrated MOSFET with an active-low, push-pull reset output pin. The input supply of the LDO regulator auto-source from the output of the buck regulator when it is in operation. Low-voltage tracking feature enables TPS65320D-Q1 to track the input supply during cold-crank conditions.

The buck regulator provides a flexible design to fit system needs. The external loop compensation circuit allows for optimization of the converter response for the appropriate operating conditions. A low-ripple pulse-skip mode reduces the no-load input-supply current to maximum 140 µA.

The device has built-in protection features such as soft start, current-limit, thermal sensing and shutdown due to excessive power dissipation. Furthermore, the device has an internal undervoltage-lockout (UVLO) function that turns off the device when the supply voltage is too low.
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TPS65321A-Q1 AKTIV Abwärtswandler (Buck) für die Automobilindustrie, 3,6 bis 36 V, 3,2 A, mit LDO-Regler, 280mA, mit gr This product is a variant and has an auto-sourcing feature.

Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS65320D-Q1 36-V Step-Down Converter With Eco-mode™ and LDO Regulator datasheet PDF | HTML 29 Nov 2017
Application note Low Quiescent Current With Asynchronous Buck-Converters at High Temperatures 20 Jul 2016
Application note Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 08 Dez 2015
EVM User's guide TPS65321EVM (HVL125A) User's Guide (Rev. A) 02 Nov 2015

Design und Entwicklung

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Evaluierungsplatine

TPS65320C-EVM — 36-V-Abwärtswandler mit EcoMode™ und LDO-Regler – Evaluierungsmodul

The Texas Instruments TPS65320C-EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS65320C-Q1, a switch-mode DC to DC step-down converter with an integrated low-dropout voltage regulator (LDO).
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

TPS65320-Q1 TINA-TI Average Spice Model

SLVM906.ZIP (8 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS65320-Q1 TINA-TI Transient Spice Model

SLVM771.ZIP (61 KB) - TINA-TI Spice Model
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Simulationsmodell

TPS65320-Q1 Unencrypted PSpice Average Model Package (Rev. A)

SLVM892A.ZIP (38 KB) - PSpice Model
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Simulationsmodell

TPS65320Q1 PSpice Transient Model

SLVM737.ZIP (77 KB) - PSpice Model
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Berechnungstool

TPS65320-Q1-SMPS-CAL-TOOL — TPS65320-Q1 Switching Mode Power Supply Component Calculation Tool

TPS65320-Q1 Switching Mode Power Supply Component Calculation Tool helps design the power stage and compensation network for DC/DC converter. It is also a great assistance for getting a deeper understanding of the AC response analysis for TPS65320-Q1

This worksheet includes two segments:

1. (...)

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TPS65320-Q1 — Abwärtswandler von 3,6 V bis 36 V, 3,2 A mit automatischem 280-mA-LDO-Regler für die Automobilindust TPS65320D-Q1 — Abwärtswandler (Buck) für die Automobilindustrie mit 3,6 bis 36 V, 3,2, mit LDO-Regler, 280 mA, mit
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