Overview
The LP2985IM5-3.5 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring stable and efficient voltage regulation, this component is particularly suited for portable electronics, IoT devices, and other low-power systems. Its fixed output voltage of 3.5 V, combined with a maximum output current of 150 mA, makes it an ideal choice for space-constrained designs. The LP2985IM5-3.5 is housed in a compact SOT-23-5 package, ensuring ease of integration into modern PCB layouts. Its robust performance, low dropout voltage, and high power supply rejection ratio (PSRR) make it a competitive solution in the LDO market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Output Voltage | 3.5 | V | Fixed |
| Output Current | 150 | mA | - |
| Input Voltage Range | 2.5 to 16 | V | - |
| Dropout Voltage | 280 | mV | Max at 150 mA |
| PSRR | 45 | dB | Typical |
| Operating Temperature | -40 to +125 | °C | - |
| Package | SOT-23-5 | - | - |
| Static Current | 850 | µA | - |
| Load Regulation | 0.014 | %/V | - |
Key Features
- Fixed output voltage of 3.5 V for simplified design.
- Low dropout voltage of 280 mV at 150 mA, ensuring efficient operation even with low input voltages.
- High PSRR of 45 dB, reducing noise and improving performance in sensitive applications.
- Compact SOT-23-5 package, ideal for space-constrained designs.
- Wide operating temperature range from -40°C to +125°C, suitable for harsh environments.
- Low static current of 850 µA, enhancing battery life in portable devices.
Applications
The LP2985IM5-3.5 is widely used in applications requiring stable and efficient voltage regulation. Its compact size and low power consumption make it ideal for portable electronics such as smartphones, tablets, and wearables. It is also commonly employed in IoT devices, where reliable power management is critical. Additionally, its robust performance and wide temperature range make it suitable for industrial automation and automotive electronics, ensuring stable operation in demanding environments.
Q & A
1. What is the output voltage of the LP2985IM5-3.5?
The output voltage is fixed at 3.5 V.
2. What is the maximum output current?
The maximum output current is 150 mA.
3. What is the input voltage range?
The input voltage range is 2.5 V to 16 V.
4. What is the dropout voltage?
The dropout voltage is 280 mV at 150 mA.
5. What is the PSRR of this LDO?
The PSRR is typically 45 dB.
6. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
7. What package does the LP2985IM5-3.5 use?
It is housed in a SOT-23-5 package.
8. Is this LDO suitable for battery-powered devices?
Yes, its low static current and low dropout voltage make it ideal for battery-powered applications.
9. Can it be used in automotive electronics?
Yes, its wide temperature range and robust performance make it suitable for automotive applications.
10. What is the load regulation specification?
The load regulation is 0.014 %/V.
