LP2967IBP-2833/NOPB

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

The LP2967IBP-2833/NOPB is a dual micropower low-dropout regulator in an 8-bump micro SMD package. It provides fixed outputs of 2.8 V and 3.3 V with a maximum current of 150 mA per channel. The device operates from a supply voltage range of 2.1 V to 16 V. Dropout voltage is typically 240 mV at full load. Quiescent current is 200 µA at light loads, dropping below 2 µA in shutdown mode. Output voltage tolerance is ±1.25%. The part includes over-temperature and short-circuit protection.

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

• Dual independent LDO channels providing separate regulated outputs within a single compact package.
• Ultra-low dropout performance utilizing VIP process technology for efficient battery-powered operation.
• Independent shutdown control pins allow individual channel power management to minimize standby consumption.
• Integrated thermal and current protection safeguards against overload conditions.

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

• Cellular phones
• Palmtop and laptop computers
• Personal digital assistants (PDAs)
• Camcorders and personal stereos

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

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as defined by Texas Instruments standards. Confirm that the 'IBP' designation corresponds to the 8-bump micro SMD package type required for the target PCB footprint. Ensure the ordering code matches the exact output voltage combination of 2.8 V and 3.3 V.

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

Select this component when two distinct voltage rails are needed from a single input source in space-constrained designs. The micro SMD package offers minimal board area usage compared to standard SOIC packages. Verify that the application requires ceramic or tantalum capacitors with appropriate ESR values to maintain stability across the operating temperature range.

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

This part belongs to the LP2967 family of dual micropower regulators manufactured by Texas Instruments. It is designed specifically for portable electronics requiring high efficiency and low noise. The device replaces older dual regulator solutions by integrating both channels into a single ultra-small form factor.

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

LP2967IMM-2833/NOPB

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

What is the minimum output capacitance required for stability?

The LP2967 requires a minimum output capacitance of 2.2 µF. Stability is maintained with ceramic or tantalum capacitors having an ESR as low as 4 mΩ.

How does the shutdown function operate?

Each regulator has an independent shutdown pin (SD1 and SD2). Pulling these pins low turns off the respective output. If unused, they must be tied to VIN.