[原创] Cypress S6BP401A汽车ADAS平台电源管理方案

Cypress公司的S6BP401A是用于汽车ADAS平台的电源管理IC,包括具有内置开关FET的四个2.1MHz DC/DC转换器,两个低压降的稳压器(LDO)和数字窗看门狗定时器,输入电压4.5V-5.5V,主要用在汽车,先进驾驶辅助系统(ADSA),照相系统和工业应用.本文介绍了S6BP401A主要特性,功能框图和框图,应用电路以及评估板S6SBP401AM2SA1001主要指标,框图,电路图,材料清单和PCB设计图.

S6BP401A is a power management IC, consists of quad buck 2.1 MHz DC/DC converter with built-in switching FETs, dual LowDrop-out regulator (LDOs) and a digital windowed watchdog timer. Having the switching FETs built-in, S6BP401A realizes highpower conversion efficiency and high switching frequency up to 2.4 MHz. The internal FETs are capable to handle up to 3A load. AsS6BP401A employs the current mode architecture, it has fast load transient response. Built-in output voltage setting resistors andcompensation circuits reduce BOM cost and component area.

S6BP401A主要特性:

Quad Buck DC/DC Converter (DD1 to DD4)
VIN Input Range: 4.5V to 5.5V
Switching Frequency
External clock mode: 1.8 MHz to 2.4 MHz
Internal clock mode: 2.0 MHz to 2.2 MHz
Built-in Switching FETs up to 3A
Built-in Output Voltage Setting Resistors
Built-in Compensation Circuits
Dual LDO (LDO1, LDO2)
VIN Input Voltage Range: 2.97V to 5.5V..

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