SSZTBJ9 march   2016 BQ25071 , BQ28Z610 , CSD25402Q3A , LM43603 , LM43603-Q1 , TAS5411-Q1 , TL331-Q1 , TPS61175-Q1 , TPS62290-Q1 , TPS63020-Q1

1.   1
2.   2
   1.     3
   2.     Backup Battery Selection
   3.     Car Battery to 5V Rail
   4.     Power Path Control
   5.     GSM Module Supply
   6.     MCU Supply
   7.     GPS Module Supply
   8.     Audio Amplifier Supply
   9.     Additional Resources:

A Complete Low-voltage Backup Battery Solution for eCall Systems