Overview
The LP2951CDM-3.0R2G is a micropower low dropout (LDO) linear voltage regulator produced by ON Semiconductor. This device is designed to maintain proper regulation with an extremely low input-to-output voltage differential. It features a very low quiescent bias current of 75 µA and is capable of supplying output currents in excess of 100 mA. The LP2951CDM-3.0R2G is particularly suited for battery-powered computer, consumer, and industrial equipment where extending the useful battery life is desirable.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | ON Semiconductor | |
| Part Number | LP2951CDM-3.0R2G | |
| Output Voltage | 3.0 V | V |
| Output Current | 100 mA | mA |
| Input Voltage (Max) | 30 V | V |
| Voltage Dropout (Max) | 0.45 V @ 100 mA | V |
| Quiescent Current (Iq) | 120 µA | µA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package / Case | 8-MSOP (Micro8™) | |
| Protection Features | Over Current, Over Temperature | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Low quiescent bias current of 75 µA
- Low input-to-output voltage differential of 50 mV at 100 µA and 380 mV at 100 mA
- Fixed output voltage of 3.0 V with ±0.5% tolerance
- Internal current and thermal limiting protection
- Error Output to signal out of regulation condition or as a microprocessor power-on reset
- Shutdown input for logic level control of the regulator output
- Requires only a 1.0 µF output capacitor for stability
- Extremely tight line and load regulation
- Pb-free packages available
Applications
The LP2951CDM-3.0R2G is ideal for various applications, including:
- Battery-powered computer and consumer equipment
- Industrial equipment where extended battery life is desirable
- Automotive and avionics systems
- Logistics robot CPU boards
- Optical line cards
Q & A
- What is the output voltage of the LP2951CDM-3.0R2G?
The output voltage is fixed at 3.0 V with a tolerance of ±0.5%.
- What is the maximum input voltage for the LP2951CDM-3.0R2G?
The maximum input voltage is 30 V.
- What is the quiescent current of the LP2951CDM-3.0R2G?
The quiescent current is 120 µA.
- What type of protection features does the LP2951CDM-3.0R2G have?
The device features over current and over temperature protection.
- What is the operating temperature range of the LP2951CDM-3.0R2G?
The operating temperature range is -40°C to 125°C.
- What package type is the LP2951CDM-3.0R2G available in?
The device is available in the 8-MSOP (Micro8™) package.
- Does the LP2951CDM-3.0R2G require any external components for stability?
Yes, it requires a 1.0 µF output capacitor for stability.
- Can the output voltage of the LP2951CDM-3.0R2G be programmed?
No, the LP2951CDM-3.0R2G has a fixed output voltage, but other versions of the LP2951 can be programmed from 1.25 V to 29 V.
- What is the purpose of the Error Output feature in the LP2951CDM-3.0R2G?
The Error Output can signal external circuitry of an out of regulation condition or serve as a microprocessor power-on reset.
- Does the LP2951CDM-3.0R2G have a shutdown feature?
Yes, it has a Shutdown input that allows a logic level signal to turn-off or turn-on the regulator output.
