Regulator IC Targets Automotive Microcontrollers
Toshiba Corporation today announced the launch of the TB9005FNG, a 5-volt constant-voltage regulator for application in automotive systems. Sample shipments start today, with mass production scheduled to start in December 2014. The TB9005FNG supports 1A or higher output current in combination with external power transistors, allowing use in automotive applications that require high output current. For example, the device can support more than 2A output current when used with Toshiba power transistors such as the TTB002 or TTA005.
The IC also incorporates system reset functions for reset of microcontrollers when their voltage is lowered or clock signals are cut off, which contributes to improved safety for automotive systems. Key features include: an output voltage of 5.0V±0.15V; an operation current of 90μA typical with Vin=12V, Ta=25 degrees C and 5-volt output; system reset functions including, low-voltage reset, power-on reset, and watchdog timer; low-voltage detection with the threshold selectable either 4.2V (typical) or 4.7V (typical); current limiting adjustable with an external resistor; an operating supply voltage range of 6- to 18-V; and an operating temperature range of -40 to 125 degrees C. The TB9005FNG is packaged in a SSOP-20-P-225-0.65A.
