SC1541CM-3.3TRT

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The SC1541CM-3.3TRT is a three-terminal low-dropout (LDO) linear voltage regulator. It consists of a voltage reference, error amplifier, output transistor (main switch) and protections circuit. It is primarily designed to provide stable output voltage with low dropout voltage and low noise.

The SC1541CM-3.3TRT is designed to deliver outputs currents up to 1.2A. The device typically has a dropout voltage of 1.2V at 1A of output current, 1.5V at 500mA output current, and 2.3V at 200mA output current. It features an on-off control, which allows the regulator to be disabled for power savings during standby mode.

The SC1541CM-3.3TRT provides higher output current capability, lower dropout voltages, and better regulation accuracy than comparable–output current, single-output voltage regulators. It is also provides improved output accuracy over load and temperature variations. Additionally, the device includes over-current and thermal protection functions.

In terms of applications, the SC1541CM-3.3TRT is suitable for VTT and DDR memory applications, mobile phone and smart phone applications, WLAN applications, general-purpose solution and others.

The SC1541CM-3.3TRT device has a direct built-in power-on reset circuit which is triggered when the device’s output voltage reaches the reset threshold after an input power-on delay. The device’s operating voltage range is from 2.6V to 5.5V.

The SC1541CM-3.3TRT operates by taking a regulated input voltage which is higher than the required output voltage and passing it through the internal circuitry of the device. The internal circuitry is composed of a voltage reference, error amplifier, output transistor (main switch) and protections circuit. The voltage reference provides a constant reference voltage while the error amplifier compares the reference voltage to the output voltage. The output transistor is then used to regulate the output voltage. If the output voltage drops, the error amplifier increases the output current of the output transistor, thus increasing the output voltage. The protections circuit is designed to protect the device from thermal and over-current conditions.

To conclude, the SC1541CM-3.3TRT is a three-terminal low-dropout (LDO) linear voltage regulator which is designed to provide stable output voltage with low dropout voltage and low noise. Its application field includes VTT and DDR memory, mobile phone, WLAN and general-purpose solutions. It also provides over-current and thermal protection functions.

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