LM34910CSDX/NOPB Integrated Circuits (ICs)

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LM34910CSDX/NOPB is a DC-to-DC switch mode regulator. It is exceptionally simple to use while providing high efficiency and robust power signal solutions. It can directly regulate power to an output voltage and accommodate input voltages up to 5.5V and output voltage up to 3.3V. It is capable of switching up to 1.5A in an automatic, synchronous, step-down configuration while offering low-power profile, wide-temperature range, and low-jitter clock.

Features and Benefits

• Switches up to 1.5A in an automatic and synchronous step-down configuration
• Usable for various applications due to its wide input voltage range of 3.2V up to 5.5V and output voltage up to 3.3V
• Reduced power loss and improved efficiency from wide switching range with low-power profile and high-efficiency mode through enable control
• Temperature range from -40°C to 85°C
• Low-jitter clock.
• Reduced design complexity and cost with an integrated solution

Application Field

The LM34910CSDX/NOPB is primarily used in applications that require a high efficiency, low-power, wide temperature range DC-to-DC switching regulator. These applications could include wireless infrastructure, automotive applications, industrial systems, wearables, automation and control, and battery-powered systems. The capability to regulate power to an output voltage and accommodate input voltages up to 5.5V, and output voltage up to 3.3V, makes this device versatile for various applications.

Working Principle

The device is configured to operate in a synchronous, step-down, buck converter configuration. The device conduction process is based on the principle of resetting the power converter which causes a voltage drop across the current-sensing resistor, resulting in a voltage drop across the control switch. This voltage drop is compared to the feedback voltage, and determines if a pulse-width modulation cycle of the power switch occurs. The LM34910CSDX/NOPB features a generated oscillator, allowing the device to self-startup. Once the device is enabled, the oscillator will chain sync signals to the output transistor controller, generating an optimized output voltage.

The LM34910CSDX/NOPB comes with a built-in enable control, allowing for a low-power system-standby profile. This can be used to turn off the regulator when not in use, drastically improving the overall efficiency and power management of the system. The device also contains protection features such as short circuit, over current, and over temperature protection.

Conclusion

The LM34910CSDX/NOPB is a switch mode regulator which offers high efficiency and robust power signal solution to various applications. This device can directly regulate power to the output voltage, accommodate input voltages up to 5.5V, and output voltage up to 3.3V. Additionally, this device features a wide-temperature range, low-power profile and high-efficiency mode, and low-jitter clock. These features make this device suitable for various applications such as wireless infrastructure, automotive applications, industrial systems, wearables, automation and control, and battery-powered systems.

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