National Semiconductor LP3855ET-ADJ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $10.72 | $10.72 |
| 15+ | $2.47 | $37.05 |
| 25+ | $2.41 | $60.25 |
| 50+ | $2.28 | $114.00 |
| 100+ | $2.01 | $201.00 |
| N+ | $0.40 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 1.23V |
| Voltage - Output (Max) | 6.6V |
| Voltage Dropout (Max) | 0.435V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 3 mA |
| Current - Supply (Max) | 10 mA |
| PSRR | 73dB ~ 57dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-5 Formed Leads |
| Supplier Device Package | TO-220-5 |
The LP3855ET-ADJ is an adjustable low dropout regulator delivering 1.5A with a dropout of just 0.435V. Output voltage can be set from 1.23V to 6.6V, making it versatile for various logic and analog rails. The TO-220-5 package provides excellent thermal performance for high-power applications, while 73dB PSRR at 120Hz ensures clean output for noise-sensitive circuits.
- Wide adjustable range: 1.23V to 6.6V covers multiple logic families.
- Low dropout: 0.435V at 1.5A maximizes headroom in tight designs.
- High PSRR: 73dB at 120Hz rejects power supply noise.
- TO-220 package: Superior heat dissipation for continuous high-current operation.
Audio Amplifier Power Supplies
Provides clean adjustable voltage up to 6.6V for preamp stages, with 73dB PSRR at 120Hz reducing hum.
Test and Measurement Equipment
Precise adjustable output for calibration circuits, with 1.5A capacity for multiple reference loads.
Industrial Process Controllers
Regulates 12V rails down to logic levels, with TO-220 package handling high thermal loads.
LED Lighting Drivers
Adjustable output for constant-voltage LED strips, with low dropout improving efficiency.
Battery Charging Circuits
Provides regulated voltage for charging management ICs, with 3mA quiescent current for standby.
RF Power Amplifiers
Delivers stable bias voltage with high PSRR, ensuring consistent RF output power.
- Q: What is the output voltage range?
- A: The adjustable output can be set from 1.23V up to 6.6V.
- Q: What is the maximum output current?
- A: It provides up to 1.5A of output current.
- Q: What is the input voltage range?
- A: Input must be at least 1.23V above the desired output voltage.
- Q: What is the dropout voltage?
- A: Dropout is 0.435V at full 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-220-5 package for high power dissipation.
LP3855ET-ADJ.pdf
- Q: What is the output voltage range?
- A: The adjustable output can be set from 1.23V up to 6.6V.
- Q: What is the maximum output current?
- A: It provides up to 1.5A of output current.
- Q: What is the input voltage range?
- A: Input must be at least 1.23V above the desired output voltage.
- Q: What is the dropout voltage?
- A: Dropout is 0.435V at full 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-220-5 package for high power dissipation.
