Overview
The LT3094IMSE#PBF, produced by Analog Devices Inc., is a high-performance low dropout negative linear regulator. It features ADI's ultralow noise and ultrahigh PSRR (Power Supply Rejection Ratio) architecture, making it ideal for powering noise-sensitive applications. This regulator is designed to provide stable and precise voltage regulation with minimal noise and high accuracy.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Output Voltage Range | 0V | - | -19.5V | V |
| Low Dropout Voltage | 235mV | - | 410mV | mV |
| SET Pin Current | - | 100µA | - | µA |
| Minimum Output Capacitor | 10µF | - | - | F |
| Minimum Load Current (VOUT > -1.5V) | 10µA | - | - | µA |
| Thermal Shutdown TJ Rising Hysteresis | 167°C | - | - | °C |
| Output Noise Spectral Density (at 10Hz, 500mA load) | 2.2nV/√Hz | - | - | nV/√Hz |
| Package Types | 12-Lead MSOP, 3mm × 3mm DFN | - | - | - |
Key Features
- Ultralow noise and ultrahigh PSRR architecture for minimal noise and high stability.
- Single resistor programs output voltage.
- Programmable current limit.
- Programmable power good and fast start-up.
- Bipolar precision enable/UVLO pin.
- VIOC pin controls upstream regulator to minimize power dissipation and optimize PSRR.
Applications
- RF and precision power supplies.
- Very low noise instrumentation.
- High speed/high precision data converters.
- Medical applications: diagnostics and imaging.
- Post-regulator for switching supplies.
Q & A
- What is the output voltage range of the LT3094IMSE#PBF? The output voltage range is from 0V to -19.5V.
- What is the typical SET pin current of the LT3094IMSE#PBF? The typical SET pin current is 100µA.
- What is the minimum output capacitor required for the LT3094IMSE#PBF? The minimum output capacitor required is 10µF.
- What are the package types available for the LT3094IMSE#PBF? The available package types are 12-Lead MSOP and 3mm × 3mm DFN.
- What is the thermal shutdown temperature of the LT3094IMSE#PBF? The thermal shutdown temperature is 167°C with a rising hysteresis.
- What are some of the key applications of the LT3094IMSE#PBF? Key applications include RF and precision power supplies, very low noise instrumentation, high speed/high precision data converters, and medical diagnostics and imaging.
- How does the LT3094IMSE#PBF minimize power dissipation? The VIOC pin controls the upstream regulator to minimize power dissipation and optimize PSRR.
- What is the output noise spectral density of the LT3094IMSE#PBF at 10Hz and 500mA load? The output noise spectral density is approximately 2.2nV/√Hz.
- Can the LT3094IMSE#PBF be used as a post-regulator for switching supplies? Yes, it can be used as a post-regulator for switching supplies.
- What is the minimum load current required for stability when the output voltage is between 0V and -1.5V? The minimum load current required for stability is 10µA.
