LM5010AMH/NOPB

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The LM5010AMH/NOPB is a multi-mode buck-boost DC-DC switching voltage regulator. It is a part of Texas Instruments’ power management integrated circuit (PMIC). This switch operates from a wide 2.5 V to 48 V range, and it has an internal power FET and an internal transconductance voltage error amplifier for higher performance, fewer active parts, and reduced size of the system. The LM5010AMH/NOPB can be used for both step-up and step-down conversion, making it ideal for use in applications where input voltage can be higher or lower than the output voltage.In applications where input voltage may be higher or lower than the output voltage, such as automotive applications, the LM5010AMH/NOPB is a desirable choice. Its multi-mode buck-boost operation can handle input voltages higher than the output voltage and current sharing capability makes it suitable for applications that require more current than a single switch can provide. This allows the LM5010AMH/NOPB to be used both as a pre-regulator to step-down input voltage before supplying a system’s load and to step-up the output voltage to meet an application’s specific needs.The internal power FET of the LM5010AMH/NOPB has a maximum continuous output current of 20 A at a junction temperature of 150°C and switching speeds up to 450 kHz. This allows for a maximum output power of 0.6 W with a 12 V input voltage and a 20 mΩ of FET switch resistance. An integrated current-limit function helps protect the load against over-current conditions and thermal protection prevents the switch from overheating, further protecting the load. The LM5010AMH/NOPB also features integrated gate drive circuitry for minimal part count and reduced system-cost.The internal transconductance voltage error amplifier of the LM5010AMH/NOPB provides output voltage very accurately. Its voltage accuracy is maintained even with changes in output current or temperature. The wide feedback range and the linear response of the transconductance amplifier improves the system performance significantly. This amplifier also has a wide temperature range operating from -40°C to 125°C to ensure reliable operation in automotive and industrial environments.The LM5010AMH/NOPB can run in either Forced Pulse Width Modulation (PWM) or Forced Continuous Conduction Mode (FCCM). In PWM operation, the switch frequency is kept constant and regulated by an internal oscillator. In FCCM operation, the switch frequency is proportional to the input voltage and it increases as the input voltage decreases. Both modes of operation can be enabled via logic control, allowing for flexibility in selecting the best operating mode for the specific application.The LM5010AMH/NOPB has protection features to prevent the load from damage due to any type of fault condition. The over-temperature, thermal shutdown, over-current, and short-circuit protections provide safe and reliable operation. This DC-DC converter also features advances like soft-start, adjustable over-current protection, adjustable voltage- and current-limit, skip-cycle operation, and CLOCKSYNC.In conclusion, the LM5010AMH/NOPB is a multi-mode DC-DC switching voltage regulator and can be used in applications where there are demanding power requirements. The wide feedback range, wide temperature range, flexible operating modes, and comprehensive protection functions make the LM5010AMH/NOPB an ideal device for applications requiring precise output voltage. The internal transconductance voltage error amplifier provides precise output voltage, and the internal power FET and gate drive circuitry help reduce the size of the system.

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