電源管理集成電路(PMIC)_S6BP401A主要特性
Cypress公司的S6BP401A是電源管理集成電路(PMIC),包含有四個內(nèi)置了開關FET的降壓2.1MHz DC/DC轉換器,兩個低壓降(LDO)的穩(wěn)壓器和數(shù)字窗口看門狗計時器.VIN輸入電壓4.5V-5.5V,內(nèi)置開關FET的電流高達3A,主要用在汽車應用,先進駕駛輔助系統(tǒng)(ADAS),照相機系統(tǒng)如安全照相機和工業(yè)應用。本文介紹了S6BP401A主要特性,框圖和架構框圖,典型應用電路,以及評估板S6SBP401AJ0SA1001主要指標,電路圖,材料清單和PCB設計圖。
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 (LD1, LD2)
VIN Input Voltage Range: 2.97V to 5.5V
Built-in Output Voltage Setting resistors
Power Good Monitor Output for each DC/DC Converters,LDOs
Built-in Windowed Watchdog Timer (WDT)
圖1.S6BP401A框圖