LP3990MF-2.8/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP3990MF-2.8/NOPB is a fixed positive linear voltage regulator providing a 2.8 V output with a maximum load current of 150 mA. It operates within an input voltage range of 2 V to 6 V and maintains 1% voltage accuracy at room temperature. The device features a low quiescent current of 43 µA when enabled and virtually zero current in shutdown mode. It includes logic-controlled enable functionality, thermal-overload protection, and short-circuit protection. Designed for stability with ceramic capacitors as small as 1 µF, it supports junction temperatures from -40°C to 125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Logic-controlled enable pin allows for active shutdown with negligible power consumption
• Stable operation guaranteed with space-saving ceramic capacitors as low as 1 µF
• Integrated thermal overload and short-circuit protection safeguards against overheating

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Cellular handsets
• Hand-held information appliances
• Portable battery-powered digital systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free compliance and confirm the package type matches the design requirements. Ensure the ordering code corresponds exactly to the Texas Instruments datasheet specifications. Cross-reference the part number with official distributor catalogs to validate authenticity and revision status before procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring precise 2.8 V regulation with minimal board space due to ceramic capacitor compatibility. Consider the 150 mA output limit and 2 V minimum input voltage when designing the power supply chain. Evaluate thermal dissipation capabilities based on the selected package and ambient operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the LP3990 family of 150-mA linear voltage regulators designed for digital applications. The series offers various fixed output voltages ranging from 0.8 V to 3.3 V. It is manufactured by Texas Instruments and is suitable for portable electronics where low noise and fast start-up times are critical performance factors.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Consult the LP3990 datasheet orderable addendum for alternative packages such as DSBGA or WSON. Verify that any substitute maintains the 150 mA current rating and 2.8 V fixed output specification.