LT3094EDD#PBF

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LT3094EDD#PBF

+БОМ

IC REG LIN NEG ADJ 500MA 12DFN

  • ПроизводительКомпания Analog Devices Inc.

  • Мфр. Часть #LT3094EDD#PBF

  • Лист данных LT3094EDD#PBF DataSheet

  • Пакет DFN-12

  • В наличии6373

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Спецификации

Атрибут Ценность
Package / Case Tube
Part Status Active
Output Configuration Negative
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) -2.3V
Voltage - Output (Min/Fixed) -19.5V
Voltage - Output (Max) 0V
Voltage Dropout (Max) 0.41V @ 500mA
Current - Output 500mA
Current - Quiescent (Iq) 2.35 mA
Current - Supply (Max) 23 mA
PSRR 108dB ~ 28dB (120Hz ~ 10MHz)
Control Features Enable, Power Good, Soft Start
Protection Features Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount

Обзор

Description

The LT3094EDD#PBF is a low-noise, negative linear regulator designed by Analog Devices. It offers an adjustable output voltage ranging from 0V to -19.5V with a maximum output current of 500mA. The device is noteworthy for its ultra-low noise performance, making it suitable for sensitive applications like RF and precision analog circuits. Its architecture allows for high power supply rejection ratio (PSRR), and it features a programmable current limit and fast transient response.
The LT3094EDD#PBF operates with a single resistor to set the output voltage, and it includes a precision current reference for accurate output current monitoring. The device is packaged in a 10-lead DFN package, which helps in efficient thermal management and compact design implementation.
Key features include low noise of 0.8µVRMS over a 10Hz to 100kHz bandwidth, a dropout voltage of 350mV at full load, and reverse output protection. It also supports external capacitors for stability and transient performance improvements, making it versatile for various power supply applications.

Equivalent

The LT3094EDD#PBF is a low-noise, low-dropout (LDO) negative linear regulator. Equivalent or similar products might include:
1. TI TPS7A33: A low-noise negative LDO.
2. Analog Devices ADM7150: Offers low noise and high PSRR.
3. MAX regulators (Maxim Integrated): MAX665 or similar might serve similar roles.
4. ON Semiconductor NCP793: A low-noise LDO for negative voltage.
Always verify specifications match your requirements as parameters can vary.

Features

The LT3094EDD#PBF is a low-noise, low-dropout (LDO) linear regulator designed by Analog Devices. Key features include:
1. Output Voltage Range: Adjustable from 0V to -19.5V, providing flexibility for various applications.
2. Output Current: Capable of supplying up to 500mA, suitable for moderate current demands.
3. Low Noise: Offers ultra-low output noise of 0.8µVRMS from 10Hz to 100kHz, ideal for noise-sensitive applications.
4. High PSRR: Exhibits a high power supply rejection ratio (PSRR) of 74dB at 1kHz, enhancing performance in noisy environments.
5. Input Voltage Range: Operates from -1.4V to -20V, allowing compatibility with a wide range of input sources.
6. Protection Features: Includes built-in protection like current limit and thermal shutdown to ensure device safety.
7. Package: Available in a small, thermally enhanced 10-lead 3mm x 3mm DFN package for efficient heat dissipation.
These features make the LT3094EDD#PBF suitable for precision power supply applications that require low noise and high stability.

Pinout

The LT3094EDD#PBF is a low-noise, negative linear regulator. It comes in a 10-pin DFN (3mm x 3mm) package. The main functions of the LT3094 include providing a regulated negative output voltage with low noise and a high power supply rejection ratio (PSRR). Key pins and their functions include:
1. IN: Input voltage.
2. OUT: Output voltage.
3. SET: Connects to resistors to set the output voltage.
4. ILIM: Programs current limit.
5. SNS: Senses the output voltage for regulation.
6. NR/SS: Noise reduction and soft-start control.
7. PG: Power good indicator.
8. NC: No connection.
9. GND: Ground.
10. Thermal Pad: Must be soldered to the PCB for optimal thermal performance.
This regulator is widely used for applications requiring a clean and stable negative voltage supply, such as powering sensitive analog and RF systems.

Manufacturer

The LT3094EDD#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and production of a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These products are used in various applications, including industrial, automotive, communication, healthcare, and consumer electronics. The company is known for its high-performance products that are critical in converting real-world phenomena into actionable data, thus bridging the analog and digital worlds. Analog Devices has a reputation for quality and innovation in the semiconductor industry.

Application

The LT3094EDD#PBF is a low-noise, negative linear regulator designed for applications requiring precise voltage regulation and low output noise. Key application areas include:
1. RF and Communication Systems: Provides clean power to sensitive RF components.
2. High-Precision Instrumentation: Supports low-noise environments for measurement accuracy.
3. Data Acquisition Systems: Ensures stable power for analog-to-digital converters.
4. Medical Equipment: Powers sensitive circuits where noise could affect performance.
5. Test and Measurement Equipment: Used for precise and stable voltage outputs.
6. Industrial Control Systems: Delivers reliable power in noise-sensitive applications.
These applications benefit from the LT3094's low output voltage noise, high PSRR, and robust performance.

Package

The LT3094EDD#PBF is a low dropout (LDO) linear regulator in a 10-lead 3mm × 3mm DFN (Dual Flat No-Lead) package.

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