Description:Ultra low output noise: 6.5 μVRMS
Operating input voltage range: 1.5 V to 5.5 V
Output current up to 250 mA
Very low quiescent current: 12 μA at no-load
Controlled Iq in dropout condition
Very low-dropout voltage: 250 mV at
250 mA
Very high PSRR: 80 dB@100 Hz,
60 dB@100 kHz
Output voltage accuracy: 2 % across line,
load and temperature
Output voltage versions: from 1 V to 5 V,
with 50 mV step
Logic-controlled electronic shutdown
Output discharge feature
Internal soft-sta
STMicroelectronics provides a recommended PCB layout in their application note AN2663, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
To ensure reliability in high-temperature applications, it's essential to follow STMicroelectronics' recommended operating conditions, including derating the device's power dissipation according to the ambient temperature. Additionally, proper thermal management, such as using a heat sink or thermal interface material, can help to reduce the junction temperature and prevent thermal runaway.
STMicroelectronics recommends following standard ESD protection procedures when handling LDLN025M28R devices, including using an ESD wrist strap or mat, storing devices in anti-static packaging, and avoiding direct contact with the device pins. The LDLN025M28R has a human body model (HBM) ESD rating of 2 kV, but it's still important to take precautions to prevent damage.
Yes, the LDLN025M28R can be used in switching regulator applications, but it's essential to ensure that the device is operated within its recommended switching frequency range (typically up to 1 MHz) and that the output voltage is properly filtered to prevent electromagnetic interference (EMI). Additionally, the device's power dissipation and thermal management should be carefully considered to prevent overheating.
To troubleshoot issues with the LDLN025M28R, start by reviewing the device's operating conditions, including the input voltage, output current, and ambient temperature. Check for any signs of physical damage, such as overheating or electrical overstress. Use a oscilloscope to monitor the device's output voltage and current, and consult STMicroelectronics' application notes and technical support resources for guidance on troubleshooting and debugging.
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LDLN025M28R Overview
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut
