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PMIC - Voltage Regulators - Linear

The TCR2EE12, LM is a highly-integrated circuit that combines voltage regulation and power management features in a single package. It is designed to provide a single-chip solution for converting input voltages in the range of 24 to 48 V to a regulated output voltage in the range of 3.3 V, 5 V or 12 V. The output voltage is automatically adjusted to the desired level according to the input voltage. It is suitable for automotive, industrial and audio applications, such as system power, memory, LCD backlight, and dimming.

Features

• Input voltage range: 24 V to 48 VDC
• Output voltage range: 3.3 V, 5 V and 12 V
• 3A max. output current
• High power efficiency
• Over-voltage, over-temperature, and short-circuit protection
• Advantages of low standby current
• Ultra small package design

Applications

• Automotive, industrial and audio applications
• System power, memory, LCD backlight and dimming
• Computer, monitor, TV, etc.

CT application field and working principle

The TCR2EE12, LM is a low-voltage, DC-DC linear voltage regulator whose main function is to maintain a steady output voltage. It uses feedback to compare the output voltage to the reference voltage and then adjusts the output voltage accordingly. The reference voltage is usually 0.6V or so. When the output voltage is lower than the reference voltage, the reference circuit will drive the power supply circuit to increase the output voltage. If the output voltage exceeds the reference voltage, the comparison circuit will enter a saturated state and the power supply circuit will lower the output voltage. The regulation of the output voltage is based on the working principle of the comparison circuit.

The TCR2EE12, LM also integrates patented current-mode pulse-width-modulated (PWM) control. It can keep the output voltage steady at a high speed and control the output voltage accurately. The current-mode PWM control also ensures excellent power efficiency under high loads and full load conditions, and can reduce the system power consumption and heat generation.

The TCR2EE12, LM adopts a low on-resistance MOSFET which can minimize power loss and improve efficiency. Thermal protection and short-circuit protection features ensure the reliability of the circuit and protect the device from damage. In addition, the TCR2EE12, LM also has low standby current and over-voltage protection, which can minimize the power consumption of the system.

In conclusion, the TCR2EE12, LM is a voltage regulator integrated circuit with high power efficiency and excellent heat dissipation performance. Its integrated features also ensure the reliable operation of the system. Its application fields include automotive, industrial and audio fields.

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