Overview
The LM1085IS-3.3, manufactured by Texas Instruments, is a low dropout (LDO) linear voltage regulator designed to deliver a fixed output voltage of 3.3V. This component is widely used in applications requiring stable and efficient voltage regulation. It is particularly suitable for scenarios where space and power efficiency are critical, such as in portable electronics, embedded systems, and industrial automation. The LM1085IS-3.3 stands out for its high output current capability, low dropout voltage, and robust thermal performance, making it a reliable choice for demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Model | LM1085IS-3.3 | - | - |
| Function | Low Dropout Regulator (LDO) | - | - |
| Maximum Input Voltage | 36 | V | - |
| Output Voltage | 3.3 | V | Fixed |
| Dropout Voltage (Max) | 1.5 | V | @ 3A |
| Output Current | 3 | A | - |
| Load Regulation | 0.3 | % | - |
| Output Type | Fixed | - | - |
| Operating Temperature | -40 to +125 | °C | - |
| Package | TO-263 | - | - |
Key Features
- Fixed 3.3V output voltage for stable power delivery.
- High output current capability of up to 3A.
- Low dropout voltage of 1.5V at full load, ensuring efficient operation even with low input voltages.
- Robust thermal performance with built-in thermal shutdown and overcurrent protection.
- Surface-mount TO-263 package for compact and space-efficient designs.
Applications
The LM1085IS-3.3 is ideal for a wide range of applications, including:
- Portable Electronics: Provides stable power for smartphones, tablets, and other battery-operated devices.
- Embedded Systems: Ensures reliable voltage regulation in microcontrollers, sensors, and communication modules.
- Industrial Automation: Supports power management in control systems, PLCs, and motor drives.
- Automotive Electronics: Suitable for infotainment systems, navigation devices, and other automotive applications requiring robust voltage regulation.
Q & A
1. What is the maximum input voltage for the LM1085IS-3.3?
The maximum input voltage is 36V.
2. What is the output voltage of the LM1085IS-3.3?
The output voltage is fixed at 3.3V.
3. What is the dropout voltage of the LM1085IS-3.3?
The dropout voltage is 1.5V at a 3A load.
4. What is the maximum output current of the LM1085IS-3.3?
The maximum output current is 3A.
5. What is the operating temperature range of the LM1085IS-3.3?
The operating temperature range is -40°C to +125°C.
6. What package does the LM1085IS-3.3 come in?
It comes in a TO-263 surface-mount package.
7. Does the LM1085IS-3.3 have thermal protection?
Yes, it includes thermal shutdown protection.
8. Is the LM1085IS-3.3 suitable for automotive applications?
Yes, it is suitable for automotive electronics due to its robust design.
9. What is the load regulation of the LM1085IS-3.3?
The load regulation is 0.3%.
10. Can the LM1085IS-3.3 be used in portable devices?
Yes, it is ideal for portable electronics due to its low dropout voltage and compact package.
