Datasheet Toshiba TB9045FNG-125

TB9045FNG-125 TOSHIBA BiCMOS Integrated Circuit Bi-CMOS Silicon Monolithic TB9045FNG-125
DCDC Convertor & Multi Output Regulator TB9045FNG is a multi output power supply IC for automotive
system power supply incorporating 2 DCDC convertors, a series
power supply and 3 tracking regulators. Both high efficiency and low
noise output are concurrently achieved by a DCDC power supply and
a series power supply, respectively.
It incorporates various monitoring functions for abnormalities in
power supply and MCU, and enables transmitting monitoring statuses
to an external system via SPI communication. HTSSOP48-P-300-0.50
Weight: 204.6mg (typ.) 1. Features 2 DCDC convertor circuits 
DCDC1: Synchronous rectifying buck-boost convertor with built-in 6V output

DCDC2: Synchronous rectifying buck convertor with built-in 1V system output
4 built-in output series power supply circuits 
TR1 to 3 output voltage LDO1 and tuning voltage (3 ch)
Output voltage monitoring & reset output 
High voltage & low voltage & overcurrent monitoring

Power-on reset (2-channel output pins)

Watchdog timer
Built-in SPI communication 
To output notification signals for various abnormalities in a power supply function …