National Semiconductor LP38511TJ-1.8
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.84 | $3.84 |
| 15+ | $0.88 | $13.20 |
| 25+ | $0.86 | $21.50 |
| 50+ | $0.82 | $41.00 |
| 100+ | $0.72 | $72.00 |
| N+ | $0.14 | Price Inquiry |
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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) | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.26V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 3.5 µA |
| Current - Supply (Max) | 13 mA |
| PSRR | 73dB ~ 70dB (120Hz ~ 1kHz) |
| 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-263-5 Thin |
| Supplier Device Package | TO-263-5 Thin |
The LP38511TJ-1.8 is a fixed 1.8V low dropout linear regulator designed for high-efficiency, low-power applications. It delivers up to 800mA with a dropout voltage of only 0.26V. Its ultra-low quiescent current of 3.5 µA makes it exceptional for battery-powered devices. With 73dB PSRR at 120Hz, it provides clean power for sensitive electronics. The TO-263-5 Thin package ensures good thermal performance in compact designs.
- Ultra-Low Quiescent Current: 3.5 µA extends battery life in portable and standby applications.
- Low Dropout: 0.26V at 800mA maximizes efficiency and allows operation from lower input voltages.
- High PSRR: 73dB at 120Hz provides excellent noise filtering for RF and analog circuits.
- Compact Thin Package: TO-263-5 Thin saves board space while maintaining thermal performance.
FPGA and DSP Core Supplies
The 1.8V output at 800mA is perfect for powering the core logic of FPGAs and DSPs, where tight voltage regulation is critical for performance.
Portable Battery Devices
With a quiescent current of only 3.5 µA, this LDO is ideal for battery-powered wearables and IoT sensors, extending standby time significantly.
High-Efficiency DC-DC Post-Regulation
Its low dropout of 0.26V allows it to efficiently regulate the output of a switching converter, providing a clean, low-noise 1.8V rail.
Wireless Communication Modules
The 73dB PSRR at 120Hz ensures minimal interference for RF transceivers and baseband processors requiring a stable 1.8V supply.
Precision Analog Circuits
Excellent ripple rejection and low quiescent current make it suitable for powering op-amps and ADCs in portable instrumentation.
- Q: What is the output voltage of the LP38511TJ-1.8?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can provide up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 0.26V above the output for regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.26V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: It comes in a TO-263-5 Thin package.
LP38511TJ-1.8.pdf
- Q: What is the output voltage of the LP38511TJ-1.8?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can provide up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 0.26V above the output for regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.26V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 3.5 µA.
- Q: What package is available?
- A: It comes in a TO-263-5 Thin package.
