Analog Devices Inc. LT1963AIQ#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $9.01 | $9.01 |
| 15+ | $8.72 | $130.80 |
| 25+ | $8.53 | $213.25 |
| 50+ | $8.06 | $403.00 |
| 100+ | $7.11 | $711.00 |
| N+ | $1.42 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 1.21V |
| Voltage - Output (Max) | 20V |
| Voltage Dropout (Max) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 1.5 mA |
| Current - Supply (Max) | 120 mA |
| PSRR | 63dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity |
| 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-5 |
| ROHS |
The LT1963AIQ#PBF is a high-performance, low dropout linear regulator from Analog Devices, capable of delivering up to 1.5A of output current. It features an adjustable output voltage range up to 20V, with a low dropout voltage of just 0.55V at full load. This regulator maintains a low quiescent current of 1.5mA, making it an efficient choice for battery-operated equipment. Its excellent 63dB PSRR at 120Hz ensures clean, stable power for sensitive analog and digital loads. Housed in a thermally efficient DDPAK-5 package, it is designed for reliable operation in a wide range of applications.
- High Efficiency with Low Dropout: The 0.55V dropout at 1.5A maximizes headroom and reduces power dissipation, improving overall system efficiency.
- Excellent Noise Rejection: With 63dB PSRR at 120Hz, it effectively filters power supply ripple, ensuring clean power for sensitive analog circuits.
- Low Quiescent Current: The 1.5mA quiescent current extends battery life in portable devices, making it ideal for always-on applications.
- High Output Current: Capable of sourcing 1.5A, it can power a wide range of loads, from microprocessors to RF power amplifiers.
High-Current Battery-Powered Devices
With a 1.5A output capability and low 1.5mA quiescent current, the LT1963AIQ#PBF is ideal for powering processors and RF transceivers in portable instruments where both performance and battery life are critical.
Post-Regulation for Switching Supplies
The low dropout voltage of 0.55V at full load allows this LDO to efficiently clean up noisy switching regulator outputs, providing a stable, low-ripple rail for sensitive analog circuitry.
Precision Analog and Data Converter Supplies
Featuring 63dB PSRR at 120Hz, this regulator minimizes mains-related noise, making it suitable for powering precision op-amps, ADCs, and DACs in measurement and audio equipment.
FPGA and DSP Core Power
The ability to source 1.5A at adjustable voltages up to 20V makes it a flexible solution for powering the core logic of FPGAs and DSPs that require tight voltage regulation under dynamic load conditions.
Industrial Control Systems
The DDPAK-5 package provides robust thermal dissipation, enabling reliable operation in industrial environments with high ambient temperatures and demanding load transients.
Automotive Infotainment
Its wide input range and high current capability support powering infotainment processors and displays, ensuring stable operation across the vehicle's varying electrical system conditions.
- Q: What is the output voltage of the LT1963AIQ#PBF?
- A: The LT1963AIQ#PBF is an adjustable LDO with an output voltage range up to 20V, set by external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range starts from 1.21V (reference) up to 20V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.55V at a 1.5A load, ensuring efficient operation with low headroom.
- Q: What is the quiescent current?
- A: The quiescent current is a low 1.5mA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: This device is offered in a DDPAK-5 (TO-263) package for excellent thermal performance.
- Q: What is the output voltage of the LT1963AIQ#PBF?
- A: The LT1963AIQ#PBF is an adjustable LDO with an output voltage range up to 20V, set by external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range starts from 1.21V (reference) up to 20V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.55V at a 1.5A load, ensuring efficient operation with low headroom.
- Q: What is the quiescent current?
- A: The quiescent current is a low 1.5mA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: This device is offered in a DDPAK-5 (TO-263) package for excellent thermal performance.

LT1963AIQ#PBF.pdf