INFINEON’S TLS715B0NA LDO REGULATOR USES “FLIP-CHIP” TECHNOLOGY TO DIFFUSE HEAT

TLS715B0NA V50 – OPTIREG™ Linear Voltage Regulator is a low dropout linear voltage regulator for load current up to 150 mA. An input voltage of up to 40 V is regulated to VQ,nom = 5 V with ±2 % precision. The TLS715B0, with a typical quiescent current of 36 μA, is the ideal solution for systems requiring very low operating current, such as those permanently connected to the battery.

Summary Of Features

  • Wide Input Voltage Range from 4.0 V to 40 V
  • Output Voltage 5 V
  • Output Voltage Precision ±2%
  • Output Current up to 150 mA
  • Low Current Consumption of 36 μA
  • Very Low Dropout Voltage of typically 180 mV at 100 mA Output Current
  • Stable with Small Output Capacitor of 1 μF
  • Enable
  • Overtemperature Shutdown
  • Output Current Limitation
  • Wide Temperature Range from -40°C up to 150°C
  • Green Product (RoHS compliant)
  • AEC Qualified

What Are Flip-Chips?

With flip-chip technology, the ICs are installed upside down in the package. With the heated part of the IC facing the bottom of the package and being closer to the PCB, thermal inductance can be improved by a factor between 2 and 3. The higher power density enables a significantly smaller footprint than conventional package technologies.

The footprint of Infineon’s new linear voltage regulator (TSNP-7-8 package, 2.0 mm x 2.0 mm) is more than 60 percent smaller than that of an established reference product (TSON-10 package, 3.3 mm x 3.3 mm) while the thermal resistance stays the same. This makes the new device particularly suitable for applications with very limited board space, such as radar and cameras. The OPTIREG TLS715B0NAV50 provides 5 V with a maximum output current capability of 150 mA.

Flip-chip technology has been used in consumer and industrial markets for several years. Due to increasingly strict space requirements, particularly in the growing number of radar and camera systems, also automotive electronics require smaller power supply solutions – albeit with much higher quality requirements. In order to offer best-in-class flip-chip quality Infineon does not rely on a subsequent qualification of existing consumer and industrial products but rather on a dedicated production process for automotive devices.

Read more: INFINEON’S TLS715B0NA LDO REGULATOR USES “FLIP-CHIP” TECHNOLOGY TO DIFFUSE HEAT

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