LP38690SD-3.3

The LP38690SD-3.3 is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3V output with high efficiency and low noise. It features a maximum output current of 1A and operates with an input voltage range of 3V to 20V. The device is known for its low dropout voltage (typically 300mV at 1A), allowing it to maintain regulation even when the input voltage is close to the output voltage.
Key features include built-in thermal shutdown, current limiting, and an excellent transient response, making it suitable for various applications, including consumer electronics, automotive systems, and industrial devices. The LP38690SD-3.3 is available in a compact surface-mount package, facilitating easy integration into space-constrained designs. Its low quiescent current enhances efficiency in battery-powered applications, further extending battery life. Overall, it is a reliable choice for designers needing a robust voltage regulation solution.

The LP38690SD-3.3 is a low-dropout (LDO) linear voltage regulator designed to provide a stable output voltage of 3.3V with a maximum output current of up to 1A. Key features include:
1. Low Dropout Voltage: Typically 200 mV at full load, allowing efficient operation with minimal input-output voltage differential.
2. High PSRR: Excellent power supply rejection ratio, ensuring stable output even with varying input voltages.
3. Wide Input Voltage Range: Operates with input voltages from 2.5V to 16V, making it versatile for various applications.
4. Thermal Protection: Built-in thermal shutdown protects the device from overheating.
5. Current Limiting: Internal current limiting prevents damage during overload or short-circuit conditions.
6. Small Package: Available in a compact surface-mount package, ideal for space-constrained designs.
7. Low Quiescent Current: Efficient operation with minimal power consumption in low-load conditions.
This LDO is suitable for applications in portable devices, battery-operated systems, and any other application requiring a reliable 3.3V power supply.

The LP38690SD-3.3 is packaged in a Surface-Mount Device (SMD) type, specifically a 5-lead SOT-23 package. This compact design is suitable for space-constrained applications in electronic circuits.

The LP38690SD-3.3 is a low-dropout (LDO) voltage regulator with a pin count of 5. The functions of its pins are as follows:
1. Input (Vin): This pin is where the input voltage is applied, typically ranging from 4.5V to 20V.
2. Output (Vout): This pin provides the regulated output voltage, which is 3.3V in this version.
3. Ground (GND): This pin is connected to the ground of the circuit, serving as the reference point for the output voltage.
4. Enable (EN): This pin allows for the control of the output. When high, the regulator is enabled; when low, it is disabled.
5. Adjust (Adj): For versions with adjustable output, this pin is used to set the desired output voltage through external resistors. In the fixed version (LP38690SD-3.3), it is typically not used.
This device is commonly used in applications requiring a stable voltage supply with low dropout voltages.

The LP38690SD-3.3 is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930, Texas Instruments designs and produces a wide range of analog and embedded processing chips, as well as digital signal processors (DSPs). The company is known for its innovation in various applications, including automotive, industrial, communications, and consumer electronics. Texas Instruments is recognized for its contributions to the development of calculators and integrated circuits, and it operates in over 30 countries, serving customers in diverse markets worldwide.

The LP38690SD-3.3 is a low dropout voltage regulator primarily used in portable battery-powered devices, microcontroller power supplies, and embedded systems. Its application areas include consumer electronics, automotive electronics, telecommunications, and industrial control systems. It provides stable output voltage with low noise, making it suitable for sensitive analog circuits and RF applications.

Equivalent products to the LP38690SD-3.3 include the LM1117-3.3, LM1084-3.3, MIC5205-3.3, and the TPS7A33. These alternatives provide similar low-dropout voltage regulation and output specifications, but always check the specific application requirements for compatibility.