National Semiconductor LP3965ESX-3.3/NOPB

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Product attributes Property Value
Manufacturer National Semiconductor
Product Series
Packaging Bulk |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 7V
Voltage - Output (Min/Fixed) 3.3V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.55V @ 1.5A
Current - Output 1.5A
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 LP3965ESX-3.3/NOPB is a fixed 3.3V LDO regulator capable of delivering 1.5A. With a 0.55V dropout and TO-263 package, it offers reliable performance for a wide range of digital applications. Its 9mA quiescent current balances efficiency with fast transient response.

  • Stable 3.3V Output: Fixed voltage ideal for standard logic and memory circuits.
  • High Current Capacity: 1.5A supports multiple loads on a single rail.
  • Robust Package: TO-263 ensures good thermal performance for continuous operation.
  • Proven Reliability: National Semiconductor design for industrial-grade applications.

3.3V Microcontroller Power

Provides a stable 3.3V rail for MCUs and peripherals, with 0.55V dropout allowing operation from 3.85V input.

FPGA I/O Banks

Delivers 1.5A for FPGA I/O and auxiliary logic, ensuring reliable operation.

Industrial Control Systems

Robust TO-263 package handles industrial temperature ranges for PLCs and motor controllers.

Telecom Line Cards

Powers 3.3V ASICs and DSPs with low noise for communication equipment.

Test and Measurement

Provides clean 3.3V for precision instruments, reducing measurement errors.

Consumer Electronics

Ideal for set-top boxes and gaming consoles requiring 3.3V logic power.

Q: What is the output voltage?
A: The fixed output is 3.3V.
Q: What is the maximum output current?
A: It can provide up to 1.5A.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; refer to the datasheet.
Q: What is the dropout voltage?
A: Dropout is 0.55V at a 1.5A load.
Q: What is the quiescent current?
A: Quiescent current is 9 mA.
Q: What package is available?
A: It comes in TO-263 (DDPAK-5).
Base Product Number : LP3965ESX-3.3
1.5A 3.3V DDPAK-5 Fixed Output Industrial LDO Linear Regulator TO-263
Q: What is the output voltage?
A: The fixed output is 3.3V.
Q: What is the maximum output current?
A: It can provide up to 1.5A.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; refer to the datasheet.
Q: What is the dropout voltage?
A: Dropout is 0.55V at a 1.5A load.
Q: What is the quiescent current?
A: Quiescent current is 9 mA.
Q: What package is available?
A: It comes in TO-263 (DDPAK-5).