仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Output Configuration | Positive |
| Output Type | Adjustable (Fixed) |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 30V |
| Voltage - Output (Min/Fixed) | 1.235V (5V) |
| Voltage - Output (Max) | 29V |
| Voltage Dropout (Max) | 0.6V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 120 µA |
| Current - Supply (Max) | 14 mA |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
The LP2951CMX/NOPB is a precision voltage regulator designed by Texas Instruments. It is part of the LP2951 series, known for its low dropout voltage and low quiescent current, making it suitable for battery-operated devices. This regulator can output a fixed or adjustable voltage, typically 5V, with an input voltage range of 2.3V to 30V. It features an error flag to indicate output voltage drops, a shutdown capability to decrease power consumption, and a low-battery detector. The device's low dropout voltage, typically 60mV at light loads, ensures efficient operation even with low input-output differential voltages. Packaged in a compact SOIC-8 surface-mount, the LP2951CMX/NOPB is ideal for space-constrained applications. Its thermal overload and current limit protections enhance reliability and safety. Overall, the LP2951CMX/NOPB is a versatile component for applications requiring stable voltage regulation with minimal power loss.
Equivalent
The LP2951CMX/NOPB is a low-dropout voltage regulator. Equivalent products include:
1. LM2951 - Another version by Texas Instruments.
2. MIC2951 - By Microchip Technology.
3. MCP1700 - By Microchip Technology, offers similar low-dropout characteristics.
4. TL750L - By Texas Instruments, offering similar functionality.
These products share similar specifications and functionalities, suitable for low-dropout voltage regulation applications. Always verify with datasheets for exact compatibility.
1. LM2951 - Another version by Texas Instruments.
2. MIC2951 - By Microchip Technology.
3. MCP1700 - By Microchip Technology, offers similar low-dropout characteristics.
4. TL750L - By Texas Instruments, offering similar functionality.
These products share similar specifications and functionalities, suitable for low-dropout voltage regulation applications. Always verify with datasheets for exact compatibility.
Features
The LP2951CMX/NOPB is a low-dropout voltage regulator designed by Texas Instruments, ideal for battery-powered applications. It features a fixed output voltage of 5V with a maximum output current of 100 mA. This regulator operates over a wide input voltage range (up to 30V) and has a low quiescent current, enhancing battery life. It provides excellent line and load regulation, and its low dropout voltage extends the usable life of battery sources.
Key features include:
1. Low Quiescent Current: Reduces power consumption.
2. Precision Output Voltage: Accurate regulation with minimal variance.
3. High Input Voltage Capability: Up to 30V.
4. Low Dropout Voltage: Facilitates efficient operation close to battery depletion.
5. Shutdown Capability: Allows for power saving when not in use.
6. Error Flag: Indicates output voltage status.
7. Thermal Protection: Prevents damage from overheating.
8. Current Limiting: Protects against overload conditions.
These features make the LP2951CMX/NOPB suitable for a wide range of portable and low-power applications.
Key features include:
1. Low Quiescent Current: Reduces power consumption.
2. Precision Output Voltage: Accurate regulation with minimal variance.
3. High Input Voltage Capability: Up to 30V.
4. Low Dropout Voltage: Facilitates efficient operation close to battery depletion.
5. Shutdown Capability: Allows for power saving when not in use.
6. Error Flag: Indicates output voltage status.
7. Thermal Protection: Prevents damage from overheating.
8. Current Limiting: Protects against overload conditions.
These features make the LP2951CMX/NOPB suitable for a wide range of portable and low-power applications.
Pinout
The LP2951CMX/NOPB is a low-dropout voltage regulator with a pin count of 8. It is designed to provide a regulated output voltage with a low input-to-output differential voltage. Here's a concise description of its pin functions:
1. Vin: Input voltage supply.
2. Ground: Common ground pin for both the input and output voltage.
3. Vout: Regulated output voltage.
4. Feedback (FB): Used for setting the output voltage via an external resistor divider.
5. Shutdown (SHDN): Disables the regulator to lower power consumption when not in use.
6. Error Output (ERROR): An open-collector output that goes low when the output voltage falls out of regulation.
7. Bypass (BP): Allows the connection of an external capacitor to reduce output noise.
8. Sense: Used to improve load regulation by remotely sensing the output voltage.
These functions allow the LP2951CMX/NOPB to be used in applications requiring precise voltage regulation and low power consumption, like battery-powered devices.
1. Vin: Input voltage supply.
2. Ground: Common ground pin for both the input and output voltage.
3. Vout: Regulated output voltage.
4. Feedback (FB): Used for setting the output voltage via an external resistor divider.
5. Shutdown (SHDN): Disables the regulator to lower power consumption when not in use.
6. Error Output (ERROR): An open-collector output that goes low when the output voltage falls out of regulation.
7. Bypass (BP): Allows the connection of an external capacitor to reduce output noise.
8. Sense: Used to improve load regulation by remotely sensing the output voltage.
These functions allow the LP2951CMX/NOPB to be used in applications requiring precise voltage regulation and low power consumption, like battery-powered devices.
Manufacturer
The LP2951CMX/NOPB is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. TI is well-known for its innovation in the electronics industry and provides solutions for industrial, automotive, personal electronics, communications equipment, and enterprise systems. The company focuses on developing technologies that improve power efficiency, enhance performance, and reduce the overall size and cost of electronic systems.
Application
The LP2951CMX/NOPB is a low-dropout (LDO) voltage regulator designed for applications requiring precise regulation and low power consumption. Key application areas include battery-powered devices, where efficient power management is crucial, such as in portable electronics, handheld instruments, and wireless communication devices. It is also used in microcontroller power supplies, automotive electronics for systems requiring stable voltage over varying input conditions, and industrial equipment needing reliable voltage regulation. Its features like low dropout voltage, adjustable output, and low quiescent current make it ideal for applications that demand energy efficiency and compact design.
Package
The LP2951CMX/NOPB is a low-dropout voltage regulator available in a surface-mount SOIC-8 package.
