Description:LP2951 also has Output Programmable from 1.25 V to 29 V; Requires Only a 1.0 mF Output Capacitor for Stability; Low Input-to-Output Voltage Differential of 50 mV at 100 mA and 380 mV at 100 mA; Extremely Tight Line and Load Regulation; Low Quiescent Bias Current of 75 mA; 5.0 V, 3.3 V or 3.0 V +/- 0.5% Allows Use as a Regulator or Reference; LP2951 also has Error(bar) Output Signals an Out of Regulation Condition; Internal Current and Thermal Limiting; LP2951 also has Logic Level Shutdown Input; Pb-Free Pac
FIXED/ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR
Screening Level:
AEC-Q100
Seated Height-Max:
1.75 mm
Surface Mount:
YES
Technology:
BIPOLAR
Terminal Finish:
Matte Tin (Sn) - annealed
Terminal Form:
GULL WING
Terminal Pitch:
1.27 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Voltage Tolerance-Max:
2.4%
Width:
3.9 mm
NCV2951CDR2G Frequently Asked Questions (FAQs)
A good PCB layout for the NCV2951CDR2G involves keeping the input and output traces separate, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, it's recommended to use a shielded inductor and to keep the switching node (pin 5) away from sensitive nodes.
To ensure the NCV2951CDR2G operates within its SOA, monitor the device's junction temperature, input voltage, and output current. Make sure the device is not exposed to excessive temperatures, and the input voltage is within the recommended range. Also, ensure the output current is within the specified maximum rating.
The recommended input capacitor value for the NCV2951CDR2G is 10uF to 22uF, with an X5R or X7R dielectric type. This ensures low ESR and high ripple current capability.
To troubleshoot issues with the NCV2951CDR2G, first check the input voltage and ensure it's within the recommended range. Verify the output voltage and current are within the specified ratings. Check the PCB layout for any signs of overheating or electrical noise. Use an oscilloscope to inspect the output waveform and look for any signs of oscillation or instability.
Yes, the NCV2951CDR2G is suitable for high-reliability applications. It's AEC-Q100 qualified and meets the requirements for automotive and aerospace applications. However, it's essential to follow the recommended PCB layout, thermal management, and component selection guidelines to ensure the device operates within its SOA.
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NCV2951CDR2G Overview
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