Analog Devices Inc. LT1764EQ-3.3#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $11.69 | $11.69 |
| 15+ | $11.33 | $169.95 |
| 25+ | $11.08 | $277.00 |
| 50+ | $10.46 | $523.00 |
| 100+ | $9.23 | $923.00 |
| N+ | $1.85 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.66V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 1.5 mA |
| Current - Supply (Max) | 200 mA |
| PSRR | 63dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | DDPAK-5 |
| ROHS |
The LT1764EQ-3.3#TRPBF is a 3A low dropout linear regulator with a fixed 3.3V output. It features an impressively low dropout voltage of 0.66V at full load, enabling efficient operation from 5V rails. The DDPAK-5 package provides excellent thermal characteristics. With 63dB ripple rejection and 1.5mA quiescent current, it balances performance and efficiency for a wide range of applications.
- Very Low Dropout: 0.66V at 3A minimizes power dissipation and heat.
- High Current: 3A output supports modern digital loads.
- Excellent PSRR: 63dB at 120Hz filters supply noise effectively.
- Fast Transient Response: Maintains stable output during load steps.
High-Efficiency 5V to 3.3V Conversion
The LT1764EQ-3.3#TRPBF's 0.66V dropout allows efficient conversion from a 5V rail with minimal power loss. This is critical in systems where thermal budget is tight.
Post-Regulation for Switching Supplies
Use this LDO after a DC-DC converter to eliminate switching noise. The 63dB PSRR at 120Hz provides clean 3.3V for analog and RF circuits.
Server and Storage Power
In data centers, 3.3V rails power SSDs and memory modules. This regulator's 3A output and low dropout ensure stable operation under burst loads.
Medical Device Power
Patient monitors and diagnostic equipment require low-noise power. The LT1764EQ-3.3#TRPBF delivers clean 3.3V with excellent line regulation.
Consumer Electronics
Set-top boxes, gaming consoles, and smart home hubs use 3.3V for SoCs. This LDO provides reliable power with minimal heat generation.
Automotive ECU Power
Engine control units need stable 3.3V for microcontrollers. The low dropout and high current make this regulator suitable for automotive environments.
- Q: What is the output voltage of the LT1764EQ-3.3#TRPBF?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of output current.
- Q: What is the input voltage range?
- A: The input must be above 3.3V plus dropout (0.66V @ 3A), so typically 3.96V or higher.
- Q: What is the dropout voltage?
- A: Dropout is 0.66V at 3A load, which is very low.
- Q: What is the quiescent current?
- A: The quiescent current is 1.5 mA.
- Q: What package is available?
- A: It comes in a DDPAK-5 package.
- Q: What is the output voltage of the LT1764EQ-3.3#TRPBF?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of output current.
- Q: What is the input voltage range?
- A: The input must be above 3.3V plus dropout (0.66V @ 3A), so typically 3.96V or higher.
- Q: What is the dropout voltage?
- A: Dropout is 0.66V at 3A load, which is very low.
- Q: What is the quiescent current?
- A: The quiescent current is 1.5 mA.
- Q: What package is available?
- A: It comes in a DDPAK-5 package.

LT1764EQ-3.3#TRPBF.pdf