TI PMP15014汽车信息娱乐电源系统参考设计

TI公司的PMP15014是汽车信息娱乐电源系统参考设计,采用一级功率系统满足高输入电压的需求,并提供不同负载的低压多个输出,还提供瞬态和极性相反保护,工作频率2.1MHz,以避开AM频段,具有优异的EMI性能.参考设备选用LM53625-Q1/LM53635-Q1同步降压稳压器.本文介绍了LM53625-Q1/LM53635-Q1主要特性,功能框图,LM53635通用应用电路图和几种典型应用电路,以及汽车信息娱乐电源系统PMP15014主要特性,电路图,材料清单和PCB设计图.
The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.
LM53625-Q1/LM53635-Q1主要特性:
AEC-Q100 Automotive Qualified:
Device Temperature Grade 1: –40℃ to +125℃ Ambient Operating Temperature Range
Device HBM Classification Level 2
Device CDM Classification Level C6
–40℃ to +150℃ Junction Temperature Range
15-µA Quiescent Current at n...