Texas Instruments LP3963ESX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.16 | $12.16 |
| 15+ | $2.80 | $42.00 |
| 25+ | $2.74 | $68.50 |
| 50+ | $2.58 | $129.00 |
| 100+ | $2.28 | $228.00 |
| N+ | $0.46 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| 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) | 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 | DDPAK/TO-263-5 |
| ROHS |  |
The LP3963ESX-3.3/NOPB from Texas Instruments is a robust low dropout linear regulator delivering a fixed 3.3V output at up to 3A. With a dropout voltage of 1.2V at full load and 9mA quiescent current, it balances performance and efficiency. The DDPAK/TO-263-5 package provides excellent thermal management for high-current applications.
- High Current Output: 3A capability for demanding 3.3V loads.
- Good Ripple Rejection: 73dB PSRR at 120Hz for clean power.
- Reliable Thermal Performance: DDPAK/TO-263-5 package dissipates heat efficiently.
- Fixed Output: No external resistor divider needed, simplifying design.
3.3V Logic and Peripheral Power
The 3.3V output at 3A is ideal for powering logic ICs, microcontrollers, and peripheral devices in industrial control systems.
Post-Regulation for Audio Circuits
With 73dB PSRR at 120Hz, this LDO provides clean, ripple-free power for audio codecs and amplifiers, minimizing hum and noise.
FPGA and CPLD Core Supplies
Many FPGAs require a 3.3V auxiliary rail; this regulator's 3A capacity handles the transient loads of programmable logic devices.
Test and Measurement Equipment
The stable 3.3V output and high current capability support precision measurement instruments that need consistent voltage references.
Communication Infrastructure
In base stations and routers, the 3A output powers line drivers and interface circuits that require a solid 3.3V rail.
Automotive Infotainment
The TO-263 package and 3A rating make it suitable for automotive infotainment systems that need a reliable 3.3V supply for displays and processors.
- Q: What is the output voltage of the LP3963ESX-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 3.3V plus the dropout voltage (1.2V @ 3A), so typically above 4.5V for full regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 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 DDPAK/TO-263-5 package.
LP3963ESX-3.3/NOPB.pdf
- Q: What is the output voltage of the LP3963ESX-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 3.3V plus the dropout voltage (1.2V @ 3A), so typically above 4.5V for full regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 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 DDPAK/TO-263-5 package.
