System Power Supply ICs
As an increasing number of electronic devices find their way into automobiles, it is becoming an urgent requirement to reduce their operating current. To address this need, Toshiba offers the TB9000 power supply IC series featuring low standby current.
TB9041FTG DC/DC Converter / Multiple Power Supply IC
Ideal for engine, brake and EPS control systems
- Reduced power consumption thanks to the high-efficiency power supply DC/DC converter
- Multiple constant-voltage outputs for high-performance, high-end microcontrollers
LDO1: Selectable from 3.3 V, 1.5 V and 1.2 V via I/O pins
LDO2: 5 V
LDO3: 5 V - Two reset outputs for two microcontrollers
- Separate current limiters for each power supply
- Support for automotive applications
- Operating temperature range: -40℃ to 125℃
- Small-sized power package: QFN36-P-0606-0.50

Block Diagram of the TB9041FTG
Product Lineup
System Power Supply ICs
| Part Number | Package | Functions | Characteristics | Remarks | Supply Voltage (V) |
|||
|---|---|---|---|---|---|---|---|---|
| Output Voltage Typ. (V) |
Output Current (mA) |
Input Voltage Max (V) |
Power Dissipation Max (W) |
|||||
| TB9000FG | SSOP16-P-225-1.00A | CPU voltage regulator, watchdog timer | 5.0 | 10 (Max) (Note) |
45 (1 sec.) |
0.6 |
|
6 to 16 |
| TB9000AFG | SSOP16-P-225-1.00A | CPU voltage regulator, watchdog timer | 5.0 | 10 (Max) (Note) |
45 (1 sec.) |
0.6 |
|
6 to 16 |
| TB9000CFNG | SSOP20-P-225-0.65A | CPU voltage regulator, watchdog timer | 5.0 | 10 (Max) (Note) |
45 (1 sec.) |
0.6 |
|
6 to 16 |
| TB9001FNG | SSOP20-P-225-0.65A | CPU voltage regulator, watchdog timer | 5.0 | 5 (Max) (Note) |
45 (1 sec.) |
0.6 |
|
6 to 16 |
| TB9004FNG | SSOP24-P-300-0.65A | CPU voltage regulator, watchdog timer | 3.4/2.5/1.5 5.0 |
10 10 (Min) (Note) |
45 (1 sec.) |
0.85 |
|
6 to 16 |
| TB9005FG* | SSOP20-P-225-0.65A | CPU voltage regulator, watchdog timer | 5.0 | 10 (Min) (Note) |
45 (1 sec.) |
0.6 |
|
6 to 18 |
| TB9006FG | HSOP36-P-225-0.65A | CPU voltage regulator, watchdog timer | 5.0 5.0 |
250 250 (Max) |
45 (1 sec.) |
2.0 |
|
7 to 18 |
*: Under development
Note: External transistors are required. Current gains vary with external transistors.
DC/DC Converter / Power Supply ICs
| Part Number | Package | Function | Characteristics | Remarks | Supply Voltage (V) |
|||
|---|---|---|---|---|---|---|---|---|
| Output Voltage Typ. (V) |
Output Current (mA) |
Input Voltage Max (V) |
Power Dissipation Max (W) |
|||||
| TB9040FTG* | QFN36-P-0606-0.50 | Low-voltage dual-output voltage regulator DC/DC converter & LDO |
2.8 1.5 |
50 130 (Max) |
40 (1 sec.) |
4.5 |
|
7 to 18 |
| TB9041FTG* | QFN36-P-0606-0.50 | CPU voltage regulator DC/DC converter & LDO Watchdog timer |
3.3/1.5/1.2 5.0 5.0 |
200 400 100 (Max) |
40 (1 sec.) |
4.5 |
|
|
*: Under development
Application Examples
Toshiba offers a variety of microcontrollers and system power supply ICs suitable for car safety systems such as anti-lock braking systems(ABS) and airbags.
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