LP3964ES-2.5

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

The LP3964ES-2.5 is a fixed positive linear voltage regulator from the National Semiconductor LP3961/LP3964 series. It provides an output current of 800mA with a typical dropout voltage of 0.55V at full load. The device operates from an input supply range of +2.5V to +7.0V and delivers a fixed 2.5V output. It utilizes BICMOS technology and is housed in a TO-263 (DDPAK-5) package.

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

• Fast transient response capability for dynamic load conditions
• Ultra low-dropout operation minimizing power dissipation
• Fixed 2.5V output voltage option within the series

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

• Portable battery-powered equipment requiring efficient regulation
• Cellular phones and personal digital assistants
• Laptop computers and peripheral power management

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

Verify RoHS compliance status as the base part number may be non-compliant while NOPB suffixes indicate lead-free versions. Confirm package integrity upon receipt. Check moisture sensitivity level before assembly. Ensure supplier documentation matches the specific ordering code to avoid confusion with adjacent models like LP3965 or LP3966.

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

Select this component when a fixed 2.5V output is required with up to 800mA load current. Compare against LP3965ES-2.5 if lower current (500mA) suffices, or LP3966ES-2.5 for higher current (3A) needs. Ensure input voltage remains within the 2.5V to 7.0V operational range. Verify thermal requirements for the TO-263 package under expected ambient conditions.

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

This regulator belongs to the LP396x family of fast ultra low-dropout linear regulators manufactured by National Semiconductor, now Texas Instruments. The series offers various output voltages and current ratings. The ES suffix denotes the TO-263 package variant. These devices are designed for space-constrained applications requiring high efficiency and stable performance.

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

LP3964ES-2.5/NOPB serves as the lead-free compliant substitute. LP3964ESX-2.5/NOPB offers the same electrical characteristics in an X2SON package. Cross-reference with LP3965ES-2.5 for reduced current needs or LP3966ES-2.5 for increased capacity.

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

What is the maximum output current for the LP3964ES-2.5?

The device supports a continuous output current of 800mA.

Does the LP3964ES-2.5 have adjustable output voltage?

No, the LP3964ES-2.5 provides a fixed 2.5V output. Adjustable versions exist within the series, such as the LP3964ES-ADJ.