Overview
The LT3015EQ#TRPBF, produced by Analog Devices Inc., is a low noise, low dropout, negative linear regulator. This device is part of the LT3015 series, which is designed to provide up to 1.5A of output current with a typical dropout voltage of 310mV. It features fast transient response and very low output noise, making it ideal for noise-sensitive applications. The regulator is stable with a minimum 10µF output capacitor and can use small ceramic capacitors without the need for additional ESR. It also includes internal protection circuitry such as reverse output protection, precision current limit with foldback, and thermal limit with hysteresis.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units |
|---|---|---|---|---|
| Output Current | - | 1.5 | - | A |
| Dropout Voltage | - | 310 | - | mV |
| Quiescent Current | - | 1.1 | - | mA |
| Quiescent Current in Shutdown | - | < 1 | - | µA |
| Minimum IN Pin Voltage | -1.8 | -1.8 | -2.3 | V |
| Regulated Output Voltage (LT3015-2.5) | -2.5 | -2.5 | - | V |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Types | - | 5-Lead TO-220, DD-Pak, 12-Lead MSOP, 8-Lead DFN | - | - |
Key Features
- Low noise and low dropout voltage
- Fast transient response
- Stable with a minimum 10µF output capacitor
- Can use small ceramic capacitors without additional ESR
- Internal protection circuitry including reverse output protection, precision current limit with foldback, and thermal limit with hysteresis
- Low quiescent current and very low shutdown current (< 1µA)
Applications
- Post-regulator for switching supplies
- Negative logic supplies
- Low noise instrumentation
- Industrial supplies
- Negative complement to the LT1963A
Q & A
- What is the maximum output current of the LT3015EQ#TRPBF?
The maximum output current is 1.5A. - What is the typical dropout voltage of the LT3015EQ#TRPBF?
The typical dropout voltage is 310mV. - What is the quiescent current of the LT3015EQ#TRPBF?
The quiescent current is typically 1.1mA. - What is the shutdown current of the LT3015EQ#TRPBF?
The shutdown current is less than 1µA. - What types of packages are available for the LT3015EQ#TRPBF?
The available packages include 5-Lead TO-220, DD-Pak, 12-Lead MSOP, and 8-Lead DFN. - What is the operating temperature range of the LT3015EQ#TRPBF?
The operating temperature range is from -40°C to 125°C. - Does the LT3015EQ#TRPBF have internal protection circuitry?
Yes, it includes reverse output protection, precision current limit with foldback, and thermal limit with hysteresis. - What are some common applications of the LT3015EQ#TRPBF?
Common applications include post-regulator for switching supplies, negative logic supplies, low noise instrumentation, and industrial supplies. - Can the LT3015EQ#TRPBF use small ceramic capacitors?
Yes, it can use small ceramic capacitors without the need for additional ESR. - Is the LT3015EQ#TRPBF stable with a minimum output capacitor?
Yes, it is stable with a minimum 10µF output capacitor.
