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LT3094EDD#PBF
+БОМIC REG LIN NEG ADJ 500MA 12DFN
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ПроизводительКомпания Analog Devices Inc.
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Мфр. Часть #LT3094EDD#PBF
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Лист данных LT3094EDD#PBF DataSheet
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Пакет DFN-12
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В наличии6373
365 Дни гарантии качества
7*24 часы обслуживания каранти
90-гарантия послепродажного дня
Гарантия подлинного продукта
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 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
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
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
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
Application
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.