Infineon Technologies AG Power - Linear Voltage Regulator (LDO) - Linear Voltage Regulators for Automotive Applications | OPTIREG™ linear - TLS810B1EJ V33 TLS810B1EJ V33

The TLS810B1EJ V33 is a linear voltage regulator featuring wide input voltage range, low drop out voltage and ultra low quiescent current.

With an input voltage range of 2.75 V to 42 V and ultra low quiescent of only 5.5 μA, the regulator is perfectly suitable for automotive or any other supply systems connected permanently to the battery. The TLS810B1xxV50 is the fixed 5 V output version with an accuracy of 2% and output current capability up to 100 mA. The new regulation concept implemented in TLS810B1 combines fast regulation and very good stability while requiring only a small ceramic capacitor of 1 μF at the output. The tracking region starts already at input voltages of 2.75 V (extended operating range). This makes the TLS810B1 also suitable to supply automotive systems that need to operate during cranking condition. Internal protection features like output current limitation and overtemperature shutdown are implemented to protect the device against immediate damage due to failures like output short circuit to GND, over-current and over-temperature. The device can be switched on and off by the Enable feature. When the device is switched off, the current consumption is typically less than 1 μA.

Summary of Features

• Ultra Low Quiescent Current of 5.5 μA
• Wide Input Voltage Range of 2.75 V to 42 V
• Output Current Capacity up to 100 mA
• Off Mode Current Less than 1 μA
• Low Drop Out Voltage of typ. 200mV @ 100 mA
• Output Current Limit Protection
• Overtemperature Shutdown
• Enable
• Available in PG-DSO-8 EP Package
• Available in PG-TSON-10 Package
• Wide Temperature Range
• Green Product (RoHS Compliant)
• AEC Qualified

Benefits

• Functional input voltage reange starts at 2.75 V and very low dropout voltage -> suitable for cranking
• Ultra-low quiescent current and current consumption -> power saving for battery
• Stable with 1 μF output capacitor -> PCB space and cost savings
• Excellent transient robustness -> smaller input capacitors hence lower input filtering costs

Potential Applications

• Applicatoins with direct battery connection
• Automotive general ECUs
• Infotainment, alarm, dashboard
• RKE, immobilizer, gateway

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