深圳市中立信电子科技有限公司

1 Features

1• 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 Converter

– 3.6- to 40-V Input Range

– 250-mΩ High-Side MOSFET

– 3.2-A Maximum Load Current, 1.1- to 20-V

Output Adjustable

– 100-kHz to 2.5-MHz Adjustable Switch-Mode

Frequency

– Less Than 140-μA Operating Quiescent

Current

• One Low-Dropout Voltage Regulator (LDO)

– 280-mA Current Capability With 28-μA

(Typical) Operating Quiescent Current in NoLoad

Condition

– Input Supply Auto-Source to Balance

Efficiency and Low Standby Current

– Power-Good Output (Push-Pull)

– Low-Dropout Voltage of 300 mV at IOUT = 200

mA (Typical)

• Overcurrent Protection for Both Regulators

• Overtemperature Protection

• 14-Pin HTSSOP Package With PowerPAD™

Package

2 Applications

• Automotive Infotainment and Cluster

• Advanced Driver Assistance System (ADAS)

• Telematics

3 Description

The TPS65320-Q1 device is a combination of a 40-V,

3.2-A, DC-DC step-down converter and a low-dropout

(LDO) regulator. The DC-DC step-down converter,

referred to as the buck regulator, has an integrated

high-side MOSFET. The LDO regulator also has an

integrated MOSFET and a low-input supply current of

28-μA (typical) in a no-load condition.

1功能

•符合汽车应用的要求

•AEC-Q100合格，结果如下:

- 1级设备温度:-40°C

+ 125°C的环境工作温度

-设备HBM ESD分类等级2

-设备CDM ESD分类等级C4B

•一个高vin降压转换器

- 3.6- 40 v的输入范围

- 250 - mΩ高端MOSFET

- 3.2-A负载电流1.1- 20-V

输出可调

- 100 khz至2.5 mhz可调开关模式

频率

——不到140μa操作静止

当前的

•一低压差稳压器(LDO)

与28-μA - 280 ma电流能力

(典型的)无载运行静止电流

条件

-输入电源自动平衡

效率高，待机电流小

-功率良好的输出(推挽)

- IOUT = 200时300mv的低电压

硕士(典型的)

•两家监管机构的过流保护

•超温保护

•14-Pin HTSSOP包PowerPAD™

包

2应用程序

•汽车信息娱乐和集群

•驾驶员辅助系统(ADAS)

•远程信息处理

3描述

TPS65320-Q1设备是一个40-V的组合，

3.2-A, DC-DC降压变换器，低辍学率

(LDO)监管机构。DC-DC降压转换器，

被称为buck调节器，有一个积分

高端MOSFET。