사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Applications | DDR-II Terminator |
| Supply Current | 320µA |
| Voltage - Supply | 2.2V ~ 5.5V |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Surface Mount |
개요
Description
The LP2997MX/NOPB is a linear voltage regulator produced by Texas Instruments. It's designed to provide a stable output voltage for applications requiring precise power management. This device is part of the LP2997 series, which is known for its high-performance features, including low dropout voltage, low output noise, and high power supply rejection ratio (PSRR).
The "MX" denotes the package type, typically indicating a surface-mount device format, while "NOPB" signifies that the product is "No Pb," or lead-free, complying with RoHS regulations. The LP2997 series is often used in applications like high-speed memory modules, such as DDR, DDR2, DDR3, and DDR4, due to its ability to deliver the required voltages with precision and efficiency.
Overall, the LP2997MX/NOPB is ideal for applications where space is a premium and reliable power regulation is critical. Its design supports a broad range of current demands, making it versatile for various electronic circuits and systems.
The "MX" denotes the package type, typically indicating a surface-mount device format, while "NOPB" signifies that the product is "No Pb," or lead-free, complying with RoHS regulations. The LP2997 series is often used in applications like high-speed memory modules, such as DDR, DDR2, DDR3, and DDR4, due to its ability to deliver the required voltages with precision and efficiency.
Overall, the LP2997MX/NOPB is ideal for applications where space is a premium and reliable power regulation is critical. Its design supports a broad range of current demands, making it versatile for various electronic circuits and systems.
Equivalent
The LP2997MX/NOPB is a DDR termination regulator. Equivalent products with similar functionality include the Richtek RT9173, Fairchild FAN1655, and Micrel MIC5209. Each of these devices offers features suitable for DDR memory applications, such as low dropout voltage and the ability to source and sink current. When choosing an equivalent, ensure compatibility with your specific application requirements, including voltage, current capacity, and thermal characteristics.
Features
The LP2997MX/NOPB is a linear DDR termination regulator designed for powering DDR SDRAM memory systems. It features a wide input voltage range and provides a low dropout voltage to maintain efficiency. The device is capable of sourcing and sinking current, making it suitable for maintaining the VTT termination voltage in DDR, DDR2, and DDR3 memory systems. Key features include:
1. Input Voltage Range: Compatible with a broad range of input voltages.
2. Output Voltage: Provides an accurate and stable VTT termination voltage.
3. Current Capability: Can source and sink up to 3A of current to maintain stable voltage.
4. Low Dropout Voltage: Enhances efficiency by minimizing power loss.
5. Built-in Power Good Indicator: Assists in monitoring output voltage status.
6. Thermal Protection: Offers over-temperature protection to prevent overheating.
7. Compact Package: Available in a small footprint package, making it suitable for space-constrained applications.
These features make the LP2997MX/NOPB ideal for use in high-performance computing applications requiring reliable memory termination.
1. Input Voltage Range: Compatible with a broad range of input voltages.
2. Output Voltage: Provides an accurate and stable VTT termination voltage.
3. Current Capability: Can source and sink up to 3A of current to maintain stable voltage.
4. Low Dropout Voltage: Enhances efficiency by minimizing power loss.
5. Built-in Power Good Indicator: Assists in monitoring output voltage status.
6. Thermal Protection: Offers over-temperature protection to prevent overheating.
7. Compact Package: Available in a small footprint package, making it suitable for space-constrained applications.
These features make the LP2997MX/NOPB ideal for use in high-performance computing applications requiring reliable memory termination.
Pinout
The LP2997MX/NOPB is a DDR termination regulator by Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here's a brief overview of its pin functions:
1. VDDQ: This is the input supply voltage pin for the regulator.
2. VTT: The regulated output voltage pin used to terminate the DDR memory bus.
3. VTT_SENSE: This pin is used for sensing the VTT output voltage for improved regulation accuracy.
4. GND: Ground pin for the device.
5. VTTSNS: Another sense pin for the VTT output, similar to VTT_SENSE.
6. REF_OUT: Provides a reference voltage output, typically half of VDDQ.
7. REF_IN: Input for an external reference voltage, used if internal reference is not suitable.
8. EN: Enable pin to activate or deactivate the device.
This regulator is primarily used to maintain the necessary voltage levels for DDR memory termination, ensuring signal integrity and proper operation of the memory interface.
1. VDDQ: This is the input supply voltage pin for the regulator.
2. VTT: The regulated output voltage pin used to terminate the DDR memory bus.
3. VTT_SENSE: This pin is used for sensing the VTT output voltage for improved regulation accuracy.
4. GND: Ground pin for the device.
5. VTTSNS: Another sense pin for the VTT output, similar to VTT_SENSE.
6. REF_OUT: Provides a reference voltage output, typically half of VDDQ.
7. REF_IN: Input for an external reference voltage, used if internal reference is not suitable.
8. EN: Enable pin to activate or deactivate the device.
This regulator is primarily used to maintain the necessary voltage levels for DDR memory termination, ensuring signal integrity and proper operation of the memory interface.
Manufacturer
The LP2997MX/NOPB is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company headquartered in Dallas, Texas. It is known for designing and manufacturing semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is one of the largest semiconductor companies in the world and is well-regarded for its innovations in the development of analog technologies, digital signal processing, and microcontroller products.
Application
The LP2997MX/NOPB is primarily used in applications requiring a termination regulator for DDR, DDR2, DDR3, and LPDDR memory systems. It is designed to provide a stable reference and termination voltage for memory modules, ensuring proper data integrity and signal reliability. Key application areas include computer motherboards, servers, laptops, and various high-performance electronic devices that utilize DDR memory technologies. The regulator's ability to source and sink current makes it suitable for maintaining voltage levels across varying data loads, which is critical in systems with dynamic memory access patterns.
Package
The LP2997MX/NOPB is in an 8-pin SOIC (Small Outline Integrated Circuit) package.
