LP5996SD-2828

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

The LP5996SD-2828 is a dual low dropout regulator from Texas Instruments. It features two independent LDO outputs: Regulator 1 provides 150mA and Regulator 2 provides 300mA. Both outputs are fixed at 2.8V. The device operates with an input voltage range of 2.0V to 6.0V. Quiescent current is 35µA when enabled. Dropout voltages are 220mV (LDO1) and 550mV (LDO2). Package is 10-WSON.

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

• Dual independent LDO regulators with separate enable pins for power management
• Ultra-low quiescent current consumption in active mode
• Stable operation with small footprint ceramic capacitors
• Integrated thermal shutdown protection

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

• Cellular handsets
• Personal Digital Assistants (PDAs)
• Wireless network adaptors

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

Verify the specific suffix against the manufacturer's latest documentation to confirm lead-free status and environmental compliance. Confirm package availability and ensure the ordering code matches the required output configuration. Cross-reference datasheet revisions to validate pinout and electrical characteristics before finalizing procurement.

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

Select this component for designs requiring two distinct regulated rails from a single package. Ensure the input voltage remains within the specified operating range. Verify that the load currents do not exceed the maximum ratings for each respective regulator channel simultaneously.

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

This part belongs to the LP5996 family of dual linear regulators. It is designed for portable applications where board space and component count are critical constraints. The device integrates two regulators into a compact 10-pin SON package, offering high accuracy and low noise performance suitable for sensitive electronics.

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

LP5996SD-2828/NOPB

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

What is the function of the CBYP pin?

The CBYP pin connects to the internal voltage reference bypass. Connecting a capacitor here reduces noise and improves line transient response and PSRR.

How does the enable control work?

The device has active-high enable pins (EN1 and EN2). Pulling a pin low turns off the corresponding regulator, resulting in virtually zero current consumption for that channel.