10.1.2基本电路模块 参考：图9-8TPS767D301双路电源 1.电源电路 '%= 1+ R =1.1834 285 5V REF R 210 ≈1.6N 5 NNI RSTI 28 1.6V 6 R475K R2210K NNI 24 OUTI 23 w OUTI EN1 3 25 Vref=1.1834V 1GND FB1/SE 5V 11 IN2 12 RST2 22 PWR RSTn PWR RSTn 18 3.3V IN2 OUT2 17 10 OUT2 EN2 5V 3.3V 9 R9270K 2GND (推荐R2=30.1k2, R36 R34 TPS767D301 可调电压1.5w5.5V)1K C25 DS2 DS3 1OuF 1OuF 0.1uF 71. 电源电路 10.1.2基本电路模块 R9 270K + C5 10uF C25 0.1uF R4 75K R2 210K C21 0.1uF + C1 10uF R36 1 K R34 1 K DS2 DS3 PWR_RSTn 5 V 3.3V 5 V 5 V 3.3V 3.3V 1.6V 1.6V PWR_RSTn RST1 2 8 1GND 3 FB1/SE 2 5 EN1 4 OUT1 2 4 IN1 5 OUT1 2 3 IN1 6 RST2 2 2 2GND 9 EN2 1 0 OUT2 1 8 IN2 1 1 OUT2 1 7 IN2 1 2 U 1 TPS767D301 参考:图9-8 TPS767D301双路电源 4 0 2 1.1834 1.6 285 1 21 = V 0 REF R V V R   = +      Vref=1.1834V 7 (推荐R2=30.1kΩ, 可调电压1.5~5.5V)