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TPS40304 - 产品图解：
TPS40304-高功率密度、600kHz 3V 至 20V 宽输入同步降压控制器，600mV、1% 参考
TPS40304-控制器（外部开关）-DC/DC开关稳压器-电源管理
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TI产品 - TPS40304介绍

TPS40304 - 高功率密度、600kHz 3V 至 20V 宽输入同步降压控制器，600mV、1% 参考

TPS40304是TI德州仪器公司的一款控制器（外部开关）产品，TPS40304是高功率密度、600kHz 3V 至 20V 宽输入同步降压控制器，600mV、1% 参考，本站介绍了TPS40304的封装应用图解、特点和优点、功能等，并给出了与TPS40304相关的TI元器件型号供参考。

TPS40304 - 高功率密度、600kHz 3V 至 20V 宽输入同步降压控制器，600mV、1% 参考 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • Input Voltage Range From 3 V to 20 V
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • High- and Low-Side FET RDS(on) Current Sensing
  • Programmable Thermally Compensated OCP Levels
  • Programmable Soft-Start
  • 600-mV, 1% Reference Voltage
  • Voltage Feed-Forward Compensation
  • Supports Prebiased Output
  • Frequency Spread Spectrum
  • Thermal Shutdown Protection at 145°C
  • 10-Pin 3-mm × 3-mm SON Package With Ground Connection to Thermal Pad
产品应用
  • POL Modules
  • Printers
  • Digital TVs
  • Telecom
产品说明

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

The Frequency Spread Spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS4030x offers design with a variety of user-programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS40303VSON (10)3.00 mm × 3.00 mm
TPS40304
TPS40305
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