TPS65320-Q1 - 具有 EcoMode 和 LDO 稳压器的 40V 降压转换器

TPS65320-Q1是TI德州仪器公司的一款TI芯片产品，TPS65320-Q1是具有 EcoMode 和 LDO 稳压器的 40V 降压转换器，本站介绍了TPS65320-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS65320-Q1相关的TI元器件型号供参考。

TPS65320-Q1 - 具有 EcoMode 和 LDO 稳压器的 40V 降压转换器 - TI芯片 - 电源管理多通道IC(PMIC)解决方案 - 德州仪器

产品特性

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 No-Load 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

产品应用

Automotive Infotainment and Cluster
Advanced Driver Assistance System (ADAS)
Telematics

产品说明

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. Furthermore, the LDO regulator has an active-low, push-pull reset output pin. To reduce heat, the input supply of the LDO regulator can auto-source from the input voltage to the output of the buck regulator. The low-voltage tracking feature can eliminate the need to use a boost converter during cold-crank conditions.

The buck regulator has a switching frequency range from 100 kHz to 2.5 MHz that provides a flexible design to fix system requirements. The external loop compensation 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 less than 140 μA.

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

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS65320-Q1	HTSSOP (14)	5.00 mm × 4.40 mm

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