Overview
The LM3487QMMX/NOPB is a high-efficiency, high-side N-channel MOSFET switching regulator controller produced by Texas Instruments. This component is designed for use in various power management applications, particularly in topologies that require a high-side MOSFET, such as buck, boost, and SEPIC converters.
It is available in a 10-pin VSSOP package and is known for its robust performance and versatility in managing power supply needs. The device is part of Texas Instruments' extensive range of power management integrated circuits (ICs), ensuring high reliability and efficiency in power conversion.
Key Specifications
| Description | Specification |
|---|---|
| Package Type | 10-Pin VSSOP |
| Topology | Buck, Boost, SEPIC |
| Control Method | Pulse Width Modulated (PWM) Current Mode Control |
| Minimum Input Voltage | 2.97 V |
| Maximum Input Voltage | 40 V |
| Typical Switching Frequency | Variable, dependent on application |
| Internal Push-Pull Driver | 1-A Peak Current Capability |
| Current Limit and Thermal Shutdown | Yes |
| Undervoltage Lockout With Hysteresis | Yes |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- High-efficiency, high-side N-channel MOSFET switching regulator controller
- Supports buck, boost, and SEPIC converter topologies
- Pulse Width Modulated (PWM) current mode control architecture
- Internal push-pull driver with 1-A peak current capability
- Current limit and thermal shutdown for protection
- Undervoltage lockout with hysteresis
- Frequency compensation optimized with a capacitor and a resistor
- Internal soft start feature
Applications
- Distributed power systems
- Battery chargers
- Offline power supplies
- Telecom power supplies
- Automotive power systems
- General industrial power supplies
Q & A
- What is the LM3487QMMX/NOPB used for?
The LM3487QMMX/NOPB is used as a high-efficiency, high-side N-channel MOSFET switching regulator controller in various power management applications.
- What package type does the LM3487QMMX/NOPB come in?
The LM3487QMMX/NOPB comes in a 10-pin VSSOP package.
- What are the supported topologies for the LM3487QMMX/NOPB?
The LM3487QMMX/NOPB supports buck, boost, and SEPIC converter topologies.
- What is the typical switching frequency of the LM3487QMMX/NOPB?
The typical switching frequency is variable and dependent on the application.
- Does the LM3487QMMX/NOPB have current limit and thermal shutdown features?
Yes, the LM3487QMMX/NOPB includes current limit and thermal shutdown features for protection.
- What is the operating temperature range of the LM3487QMMX/NOPB?
The operating temperature range is -40°C to 125°C.
- What is the minimum input voltage for the LM3487QMMX/NOPB?
The minimum input voltage is 2.97 V.
- What is the maximum input voltage for the LM3487QMMX/NOPB?
The maximum input voltage is 40 V.
- Does the LM3487QMMX/NOPB have an internal push-pull driver?
Yes, the LM3487QMMX/NOPB has an internal push-pull driver with a 1-A peak current capability.
- What are some common applications of the LM3487QMMX/NOPB?
Common applications include distributed power systems, battery chargers, offline power supplies, telecom power supplies, and automotive power systems.
