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TPS65320D-Q1

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采用 280mA 自动拉电流 LDO 稳压器的汽车类 3.6V 至 36V、3.2A 降压转换器

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TPS65320D-Q1

正在供货
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产品详情

Regulated outputs (#) 2 Vin (min) (V) 3.6 Vin (max) (V) 36 Iout (max) (A) 3.2 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 1 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 1 Iq (typ) (mA) 0.155 Switching frequency (max) (kHz) 2500 Features Eco-mode, Enable, Overcurrent protection, Power good, Thermal shutdown, UVLO fixed Operating temperature range (°C) -40 to 125 Processor name Generic Processor supplier Generic Shutdown current (ISD) (typ) (µA) 2 Configurability Hardware configurable
Regulated outputs (#) 2 Vin (min) (V) 3.6 Vin (max) (V) 36 Iout (max) (A) 3.2 Rating Automotive Step-down DC/DC controller 0 Step-down DC/DC converter 1 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 1 Iq (typ) (mA) 0.155 Switching frequency (max) (kHz) 2500 Features Eco-mode, Enable, Overcurrent protection, Power good, Thermal shutdown, UVLO fixed Operating temperature range (°C) -40 to 125 Processor name Generic Processor supplier Generic Shutdown current (ISD) (typ) (µA) 2 Configurability Hardware configurable
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 正在供货 采用宽输入电压范围、280mA LDO 稳压器的汽车类 3.6V 至 36V 3.2A 降压转换器 This product is a variant and has an auto-sourcing feature.

技术文档

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类型 项目标题 下载最新的英语版本 日期
* 数据表 TPS65320D-Q1 36-V Step-Down Converter With Eco-mode™ and LDO Regulator 数据表 PDF | HTML 2017年 11月 29日
应用手册 Low Quiescent Current With Asynchronous Buck-Converters at High Temperatures 2016年 7月 20日
应用手册 Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 2015年 12月 8日
EVM 用户指南 TPS65321EVM (HVL125A) User's Guide (Rev. A) 2015年 11月 2日

设计和开发

如需其他信息或资源，请查看下方列表，点击标题即可进入详情页面。

评估板

TPS65320C-EVM — 具有 EcoMode 和 LDO 稳压器的 36V 降压转换器评估模块

德州仪器 (TI) TPS65320C-EVM 评估模块 (EVM) 能帮助设计者评估 TPS65320C-Q1 的操作和性能，TPS65320C-Q1 是具有集成低压差电压稳压器的开关模式直流到直流降压转换器。
用户指南: PDF
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仿真模型

TPS65320-Q1 TINA-TI Average Spice Model

SLVM906.ZIP (8 KB) - TINA-TI Spice Model
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仿真模型

TPS65320-Q1 TINA-TI Transient Spice Model

SLVM771.ZIP (61 KB) - TINA-TI Spice Model
下载
仿真模型

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

SLVM892A.ZIP (38 KB) - PSpice Model
下载
仿真模型

TPS65320Q1 PSpice Transient Model

SLVM737.ZIP (77 KB) - PSpice Model
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计算工具

TPS65320-Q1 Switching Mode Power Supply Component Calculation Tool

SLYU011.ZIP (284 KB)
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参考设计

TIDA-00282 — 汽车级数控升压电源

此 TI 参考设计是一种汽车电压调节升压转换器模块。该模块的目的是在电压下降期间升高电池电压，从而为车辆电子器件提供稳定的输入电压。这项基于 C2000 的设计将从 12V 汽车电池系统提供高达 400 瓦的功率。此解决方案支持 6V-16V 的连续工作输入电压，并可预防 36V 负载突降，从而提供稳定的 12V 输出电源及电池反向保护
测试报告: PDF
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参考设计

TIDA-00275 — 汽车仪表板宽输入电压电源设计

此 TI 参考设计是一种汽车仪表盘宽电压输入电源解决方案，包含一个带有集成 LDO 的宽电压输入降压转换器。  还包含一个高效率同步降压直流/直流转换器。另外还包含一个线性稳压器，旨在使 DDR 终端符合 JEDEC SSTL-2 和 JEDEC SSTL-18 规格。此仪表盘电源解决方案已针对中端仪表盘市场进行优化，整个解决方案支持 6.0V-40V 系统功能，可承受启动停止和负载突降情况。前端降压转换器 (TPS65320-Q1) 能够支持 4.5V 冷启动情况。
测试报告: PDF
原理图: PDF
参考设计

TIDA-00141 — 用于翻转式显示屏的汽车类刷式电机驱动器

此 TIDA-00141 参考设计提供了推动式开关电机驱动系统（用于驱动信息娱乐系统的翻转式显示屏）的快速设置指南。此解决方案还演示了两种反馈方法：一种使用限位开关，另一种使用电机驱动器上的限流设置。此设计提供一种快速解决方案来加快上市步伐，采用所有通过汽车认证的器件，允许直接连接电池，并且无需在软件方面投入精力。此设计通过整合 TPS65320EVM 板来形成该解决方案。
设计指南: PDF
原理图: PDF
参考设计

TIDA-00133 — 用于汽车类百万像素 CMOS 相机参考设计的同轴无压缩数字视频串行器/解串器

TIDA-00133 参考设计是一种高速串行视频接口，通过此接口，可将远程汽车摄像头模块连接到显示器或机器视觉处理系统。此设计使用 TI 的 FPD-Link III SerDes 技术，通过屏蔽双绞线或同轴电缆传输未压缩的百万像素视频数据、双向控制信号及供电。此设计通过整合 DS90UB913A-CXEVM 和 DS90UB914A-CXEVM 板来形成该解决方案。
设计指南: PDF
原理图: PDF
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订购和质量

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  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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