TLV71128512DSER

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TLV71128512DSER is an advanced linear voltage regulator manufactured by Texas Instruments. It is part of the integrated circuit range of Power Management Integrated Circuits (PMICs) for use in applications requiring low currents and tight voltage control. The TLV71128512DSER is a dual-channel output, four-terminal device that can provide up to 10mA of output current per channel. The output voltage is adjustable and can be set within a range of 0.9V to 5.5V.

The TLV71128512DSER is ideal for applications that require the conversion of a DC input voltage into either a regulated or adjustable fixed voltage output. It can be used to regulate power to communications and military computing systems, control boards, microprocessor-based devices, household appliances, and consumer electronics. It enjoys many applications in a wide range of markets and industries, including automotive, industrial, home and consumer applications. The device also features low quiescent current consumption, fast transient response, and internal current limiting.

Features

• Wide adjustable output voltage of 0.9V to 5.5V with a maximum dropout of 0.3V
• Maximum load current of 10mA (per channel)
• High power supply rejection ratio: 90dB
• Low quiescent current consumption
• Low output noise
• Internal short-circuit protection
• Very high ripple rejection:
  • 45dB at 0.1MHz
  • 50dB at 0.2MHz
  • 60dB at 1MHz
• High overload capability
• Low dropout voltage
• Internal thermal overload protection
• TTL-compatible shutdown mode
• Integrated switching transistors for load sharing and remote sensing
• Four-terminal device

Working Principle

The TLV71128512DSER works on the principle of linear voltage regulation. It uses a precisely matched transistor and zener diode combination to compare the voltage at the output with a reference voltage and adjust the current through the device to compensate for any difference between the two. When the output voltage starts to decrease, the device increases the current flow through the device so that the output voltage is held constant. When the output voltage starts to increase, the current is decreased in order to maintain the set output voltage.

The TLV71128512DSER also has an internal voltage reference of 1.25V. This provides the comparison point for the output voltage and ensures that the device outputs a precisely regulated voltage, even if the input voltage fluctuates. The device also features an overload protection circuit and an internal over-temperature protection circuit. These features help to protect the device from damage due to high current and overheating.

Conclusion

The TLV71128512DSER is an advanced linear voltage regulator designed and manufactured by Texas Instruments. It is part of the range of Power Management Integrated Circuits (PMICs) and is ideal for applications that require the conversion of a DC input voltage into either a regulated or adjustable fixed voltage output. It has a wide adjustable output voltage of 0.9V to 5.5V and a maximum load current of 10mA, and features low quiescent current consumption, fast transient response and internal current limiting. The device also has an internal voltage reference and built-in protection circuits that help to protect it from damage due to high current and overheating. It is suitable for use in a wide range of markets and industries, including automotive, industrial, home and consumer applications.

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