• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TPS5401 device is a 42-V, 0.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the supply current to 116 µA when outputting regulated voltage with no load. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.

特性

• 3.5-V to 42-V Input Voltage Range
• 200-m High-Side MOSFET
• High Efficiency at Light Loads With a Pulse-Skipping Eco-mode Control Scheme
• 116-µA Operating Quiescent Current
• 1.3-µA Shutdown Current
• 100-kHz to 2.5-MHz Switching Frequency
• Synchronizes to External Clock
• Adjustable Slow Start/Sequencing
• UV and OV Power-Good Output
• Adjustable UVLO Voltage and Hysteresis
• 0.8-V ±3.5% Internal Voltage Reference
• MSOP10 With PowerPAD™ Package
• Supported by SwitcherPro Software Tool
  (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html )
• For SWIFT Power Products Documentation,
  See the TI Web Site at http://www.ti.com/swift
• APPLICATIONS
  • 12-V and 24-V Industrial and Commercial Low-Power Systems