TLS4120D0EP V33
The OPTIREG™ Switcher TLS4120D0EP V33 is a synchronous standalone step-down DC/DC-converter especially designed for automotive applications.
The device has a current capability of 2 A, fixed 3.3 V output voltage and a feedback voltage accuracy of +/- 1.5% in PWM mode. Integrated power-stages, soft start feature and compensation reduce the required amount of external components and thus system costs and board space. The wide input voltage range (3.7 V – 35 V) and a 100% duty-cycle operation mode make the device suitable for battery cranking scenarios in automotive applications. The wide switching frequency range allows the selection of appropriated coils and capacitors. The switching frequency can be synchronized with an external clock signal. Spread spectrum frequency modulation can be activated to improve the EMI performance in PWM operation. The device is offering a low-current consumption in PFM mode at light loads to optimize the efficiency. In disabled mode, the current consumption is reduced to typically 1 μA. The TLS4120D0EP V33 is able to detect undervoltage and overvoltage conditions of the output voltage and indicates this with the reset output signal. Overcurrent and overload protections avoid excessive currents to protect the device during short circuit conditions at the buck converter output. The integrated thermal shutdown feature additionaly protects the device from overheating. Furthermore the enhanced PG-TSDSO-14 exposed-pad package enables an advantageous thermal performance in the application.
Summary of Features
- 2 A step down regulator
- Input voltage from 3.7 V to 35 V
- 3.3 V output voltage
- ±1.5% feedback voltage accuracy in PWM mode
- Ultra low current consumption 31 µA
- Enable
- Flexible Reset function with Under and Overvoltage detection
- Precised timing for reset with external resistor
- Wide Switching Frequency range 320 kHz - 560 kHz & 1.6 MHz - 2.8 MHz
- 100 % duty cycle operation
- Synchronization to external frequency
- Spread spectrum frequency modulation for improved EMI performance
- Soft start function
- Integrated compensation Network
- Output discharge function during disabled state
- Ultra low current consumption during disabled state (typically 1 μA)
- Overtemperature Shutdown
- Output Current Limitation
- Wide Junction Temperature Range from -40 °C up to 150 °C
- AEC Qualified
Benefits
- Designed for harsh automotive environment
- Wide input voltage range
- Low quiescent current operation at no load condition
- Optimized for size and flexibility
- Suitable for cranking condition with 100% duty cycle
- Flexible Reset with minimum external components
Potential Applications
- Automotive general ECUs
- BCM, Gateway, Cluster
- Camera, Radar, Telematics
- Infotainment, Car-Media, Display, Dashboard
For different output voltage varieties please click here.
