Texas Instruments LP3966ES-1.8/NOPB

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Tube |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 7V
Voltage - Output (Min/Fixed) 1.8V
Voltage - Output (Max) -
Voltage Dropout (Max) 1.2V @ 3A
Current - Output 3A
Current - Quiescent (Iq) 9 mA
Current - Supply (Max) 15 mA
PSRR -
Control Features Enable
Protection Features Over Current, Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263 (DDPAK-5)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The LP3966ES-1.8/NOPB from Texas Instruments is a low-dropout linear regulator delivering a fixed 1.8V output at up to 3A. With a dropout of 1.2V at full load and a quiescent current of 9 mA, it balances performance and efficiency. The TO-263 (DDPAK-5) package provides robust thermal performance for demanding applications.

  • High Current 3A: Supports memory and processor rails with ample margin.
  • Fixed 1.8V Output: Ideal for DDR and ASIC applications without external resistors.
  • Low Quiescent Current: 9 mA reduces standby power consumption.
  • Proven TI Design: Reliable performance in a standard DDPAK-5 package.

DDR Memory Termination

1.8V output at 3A is ideal for DDR2/DDR3 memory termination rails in computing systems.

ASIC Core Voltage

Precise 1.8V supply for ASIC cores in networking and storage equipment.

Graphics Card Power

High current 1.8V rail supports GPU logic and memory interfaces.

Embedded Processor Systems

Stable 1.8V for ARM-based embedded controllers in industrial automation.

Set-Top Boxes and Media Players

Reliable 1.8V supply for SoC and memory in consumer electronics.

Telecom Line Cards

3A capability ensures stable 1.8V for high-speed communication ICs.

Q: What is the output voltage of the LP3966ES-1.8?
A: It provides a fixed 1.8V output voltage.
Q: What is the maximum output current?
A: The regulator can supply up to 3A of output current.
Q: What is the input voltage range?
A: The minimum input voltage is 1.8V.
Q: What is the dropout voltage?
A: Dropout voltage is 1.2V at 3A load.
Q: What is the quiescent current?
A: The quiescent current is 9 mA.
Q: What package is available?
A: It comes in a TO-263 (DDPAK-5) package.
Base Product Number : LP3966ES-1.8
1.8V 3A DDPAK-5 DDR LDO Linear Regulator Low Dropout Texas Instruments TO-263
Q: What is the output voltage of the LP3966ES-1.8?
A: It provides a fixed 1.8V output voltage.
Q: What is the maximum output current?
A: The regulator can supply up to 3A of output current.
Q: What is the input voltage range?
A: The minimum input voltage is 1.8V.
Q: What is the dropout voltage?
A: Dropout voltage is 1.2V at 3A load.
Q: What is the quiescent current?
A: The quiescent current is 9 mA.
Q: What package is available?
A: It comes in a TO-263 (DDPAK-5) package.