LT3097ADJC#TRPBF
ActiveDUAL 500MA, POSITIVE/NEGATIVE, ULTRA-LOW NOISE, ULTRA-HIGH PSRR LOW DROPOUT LINEAR REGULATOR
LT3097ADJC#TRPBF
ActiveDUAL 500MA, POSITIVE/NEGATIVE, ULTRA-LOW NOISE, ULTRA-HIGH PSRR LOW DROPOUT LINEAR REGULATOR
Description
General part information
LT3097 Series
The LT3097 is a dual, positive and negative, high-performance, low-dropout linear regulator featuring Analog Devices, Inc., ultralow noise and ultra-high power supply rejection ratio (PSRR) architecture for powering noise-sensitive applications. Each regulator delivers up to 500 mA with a typical 260 mV/235 mV (positive/negative) dropout voltage.Operating quiescent current is nominally 2.2 mA/2.35 mA (positive/negative) and drops to 0.3 μA/3 μA (positive/negative) in shutdown. The LT3097 has a wide output voltage range (0 V to 15 V, positive and 0 V to -19.5 V, negative) error amplifier that operates in unity-gain and provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage.LT3097 is stable with a minimum 10 μF ceramic output capacitor for each channel. Built-in protection includes internal current limit with foldback and thermal limit with hysteresis. The positive regulator also includes reverse-battery protection and reverse-current protection. The LT3097 is available in a thermally enhanced, 22-lead 6 mm × 3 mm, Plastic dual-flat no-leads (DFN) package.APPLICATIONSBipolar very low-noise power suppliesRF power supplies: phase-locked loops, voltage-controlled oscillators, mixers, low-noise amplifiers, and power amplifiersLow-noise instrumentationHigh-speed and high-precision data convertersMedical applications: imaging and diagnosticsPrecision power suppliesPostregulator for switching supplies
Technical Specifications
Parameters and characteristics for this part
| Specification | LT3097ADJC#TRPBF |
|---|---|
| Control Features | Enable, Soft Start, Current Limit |
| Current - Output (Max) | 500 mA |
| Current - Output (Min) | 0.5 A |
| Current - Quiescent (Iq) | 101 µA |
| Current - Supply (Max) | 102 µA |
| Mounting Type | Surface Mount |
| Number of Regulators | 2 |
| Operating Temperature (Max) | 125 °C |
| Operating Temperature (Min) | -40 °C |
| Output Configuration | Positive and Negative, Negative, Positive |
| Output Type | Adjustable |
| Package / Case | 22-WFDFN Exposed Pad |
| Package Length | 6 mm |
| Package Name | 22-DFN |
| Package Width | 3 mm |
| Protection Features | Over Temperature, Short Circuit, Reverse Current, Under Voltage Lockout (UVLO), Reverse Polarity, Over Current |
| PSRR (Maximum) | 108 dB, 117 dB |
| PSRR (Minimum) | 28 dB, 53 dB |
| Voltage - Input (Max) | 20 V |
| Voltage - Output (Max) Negative | -19 V |
| Voltage - Output (Max) Positive | 15 V |
| Voltage - Output (Min/Fixed) | 0 V |
| Voltage Dropout (Max) | 0.41 V |
| Voltage Dropout (Max) (Alt) | 0.45 V |
Pricing
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