Analog Devices LT1764AEQ 3A Output Current Adjustable 1.21V to 20V Linear Voltage Regulator with Wide Temperature Range
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Product Description
High-Performance 3A Low-Dropout Linear Regulator
Operates from 2.7V to 20V input with adjustable output from 1.21V to 20V. The "EQ" suffix indicates enhanced reliability and extended temperature range operation.
Core Regulation Performance
- 3A continuous output current with 340mV typical dropout at full load
- Adjustable output: 1.21V to 20V (fixed versions: 1.5V, 1.8V, 2.5V, 3.3V available)
- Fast transient response: Maintains tight regulation under rapid load changes
- Ultra-low output noise: 40µVRMS (10Hz-100kHz)
- High PSRR: 63dB at 120Hz for excellent power-supply noise rejection
- Low quiescent current: 1mA typical; <1µA in shutdown mode
- Stable with small output capacitors: Works reliably with ≥10µF capacitors
Protection & Reliability Features
- Comprehensive internal protection: Reverse-battery protection, current limiting, thermal shutdown, reverse-current protection
- Wide temperature range: −40°C to +125°C (junction)
- Package: 5-lead DDPAK / TO-263 (surface-mount, RoHS-compliant)
- AEC-Q100 qualified for automotive applications
Control & Interface
- Enable (SHDN) pin: For remote on/off control and power sequencing
- Adjust pin: Sets output voltage via external resistors
Typical Applications
RF & Communications Systems
RF transceivers, PLLs, VCOs, LNAs - providing low-noise, high-PSRR power for sensitive RF circuits. Base stations, optical modules, FPGA/ASIC cores, and high-speed SerDes interfaces.
Industrial & Automotive Electronics
Industrial control systems, PLCs, servo drives with 3A capability, wide temperature operation, and robust protection. Automotive ECUs, ADAS, infotainment, sensors, and lighting drivers (AEC-Q100 qualified).
High-Speed Digital & Processors
FPGA/ASIC/SOC core power for Xilinx/Intel FPGAs, ARM processors, and GPUs. High-speed interfaces including PCIe, USB 3.x, SATA, DDR memory, and high-speed ADC/DACs. Post-regulators for switching supplies to reduce ripple and improve system noise performance.
Medical & High-End Audio Equipment
Medical equipment including patient monitors, ultrasound, imaging systems, and in-vitro diagnostics requiring low noise and high stability. Hi-Fi audio applications such as preamps, DACs, headphone amplifiers, and professional mixers for superior audio fidelity.
General High-Performance Systems
Battery-powered devices benefiting from low quiescent current for extended battery life. Test and measurement equipment, data acquisition systems, POS terminals, security systems, digital media, and logic level translation applications.
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Company
Berton Electronics Limited
Location
Room 905 Dong Le Building , NanJi Road , Luohu District, Shenzhen,China.
Contact Person
Jessica