TPS54383中文资料具有内部补偿的 4.5V 至 28V 输入、双路 3A 输出、300kHz 降压转换器数据手册TI规格书

描述 Description

The TPS54383 and TPS54386 are dual output, non-synchronous buck converters capable of supporting 3-A output applications that operate from a 4.5-V to 28-V input supply voltage, and require output voltages between 0.8 V and 90% of the input voltage.
With an internally-determined operating frequency, soft-start time, and control loop compensation, these converters provide many features with a minimum of external components. Channel 1 overcurrent protection is set at 4.5 A, while Channel 2 overcurrent protection level is selected by connecting a pin to ground, to BP, or left floating. The setting levels are used to allow for scaling of external components for applications that do not need the full load capability of both outputs.
The outputs may be enabled independently, or may be configured to allow either ratio-metric or sequential startup sequencing. Additionally, the two outputs may be powered from different sources.

特性 Features

• 4.5-V to 28-V Input Range
• Output Current Up to 3 A
• TPS54386: 600 kHz
• 0.8-V 1.5% Voltage Reference
• Dual PWM Outputs 180° Out-of-Phase
• 85-mΩ Internal High-Side MOSFETs
• Internal Compensation
• Thermal Shutdown Protection at +148\\xC2°C
• 14-Pin PowerPAD™ HTSSOP package