Overview
The LT3093EMSE#PBF is a high-performance, negative linear voltage regulator produced by Analog Devices Inc. This component is renowned for its ultralow noise and ultrahigh power supply rejection ratio (PSRR), making it ideal for applications requiring precise voltage regulation and minimal noise.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 12-Lead Plastic MSOP |
| Description | Negative Adjustable Linear Voltage Regulator |
| Output Voltage Range | 0 V to -19.5 V |
| Maximum Output Current | 200 mA |
| Input Voltage Range | -1.8 V to -20 V |
| Dropout Voltage | 190 mV (typ), 330 mV (max) |
| PSRR | 73 dB at 1 MHz |
| Noise | 0.8 µVRMS (10 Hz to 100 kHz), 2.2 nV/√Hz at 10 kHz |
| Operating Temperature Range | -40°C to 125°C |
| Minimum Output Capacitor | 4.7 µF Ceramic |
Key Features
- Ultralow noise: 0.8 µVRMS (10 Hz to 100 kHz) and 2.2 nV/√Hz at 10 kHz.
- Ultrahigh PSRR: 73 dB at 1 MHz.
- Programmable output voltage using a single resistor.
- Programmable current limit.
- Low dropout voltage: 190 mV (typ).
- Bipolar precision enable/UVLO pin.
- VIOC pin to control upstream regulator and optimize PSRR.
- Internal current limit with foldback and thermal limit with hysteresis.
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 maximum output current of the LT3093EMSE#PBF?
The maximum output current is 200 mA. - What is the input voltage range for the LT3093EMSE#PBF?
The input voltage range is from -1.8 V to -20 V. - What is the typical dropout voltage of the LT3093EMSE#PBF?
The typical dropout voltage is 190 mV. - What is the PSRR of the LT3093EMSE#PBF at 1 MHz?
The PSRR is 73 dB at 1 MHz. - What is the minimum output capacitor required for the LT3093EMSE#PBF?
The minimum output capacitor required is 4.7 µF ceramic. - What are the key noise specifications of the LT3093EMSE#PBF?
The noise specifications include 0.8 µVRMS (10 Hz to 100 kHz) and 2.2 nV/√Hz at 10 kHz. - What are some common applications of the LT3093EMSE#PBF?
Common applications include RF and precision power supplies, very low noise instrumentation, high speed/high precision data converters, and medical diagnostics and imaging. - What package options are available for the LT3093EMSE#PBF?
The component is available in 12-Lead Plastic MSOP and 3mm × 3mm DFN packages. - What is the operating temperature range of the LT3093EMSE#PBF?
The operating temperature range is from -40°C to 125°C. - Does the LT3093EMSE#PBF have built-in protection features?
Yes, it includes internal current limit with foldback and thermal limit with hysteresis.
