LM3488MMX

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LM3488MMX

IC REG CTRLR MULT TOP 8VSSOP

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規格

Part Status Obsolete
Base Product Number LM3488
Output Type Transistor Driver
Function Step-Up, Step-Up/Step-Down
Output Configuration Positive
Topology Boost, Flyback, SEPIC
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 2.97V ~ 40V
Frequency - Switching 100kHz ~ 1MHz
Duty Cycle (Max) 100%
Synchronous Rectifier No
Clock Sync Yes
Control Features Enable, Frequency Control
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP
Packaging Tape & Reel (TR)

概述

Description

The LM3488MMX is a versatile, high-performance PWM (Pulse Width Modulation) controller designed for DC-DC converter applications. It features a voltage mode control architecture that enables efficient power conversion, making it suitable for applications such as power supplies for CPUs, GPUs, and other electronic devices.
Key specifications include a wide input voltage range (typically from 4.5V to 60V), adjustable output voltage, and the ability to drive high-side and low-side MOSFETs. The device operates with a frequency range from 100 kHz to 1 MHz, allowing for compact design layouts.
Additional features include programmable soft-start, over-voltage protection, under-voltage lockout, and thermal shutdown, which enhance reliability. The LM3488MMX is available in a compact surface-mount package, facilitating integration into various circuit designs.
Overall, the LM3488MMX is an efficient, reliable solution for power management in a range of applications, balancing performance with power efficiency.

Features

The LM3488MMX is a versatile voltage regulator and controller designed for DC-DC conversion applications. Key features include:
1. Wide Input Voltage Range: Operates from 3.5V to 40V, accommodating various power source applications.
2. Adjustable Output Voltage: Enables custom output voltage settings through external resistors.
3. High Efficiency: Designed to maximize efficiency in power conversion, which is ideal for battery-operated devices.
4. Integrated PWM Control: Supports Pulse Width Modulation for effective load regulation.
5. Built-in Protection Features: Includes thermal shutdown and over-current protection to enhance reliability.
6. Synchronous Operation: Capable of synchronous rectification to improve performance and reduce power loss.
7. Compact Package: Offered in a small surface-mount package (MMX), facilitating easy integration into designs with limited space.
These features make the LM3488MMX suitable for a range of applications, including power management in consumer electronics, automotive systems, and industrial equipment.

Package

The LM3488MMX is available in a surface mount package type known as the "TSSOP-16" (Thin Shrink Small Outline Package with 16 pins).

Pinout

The LM3488MMX is a high-performance, step-down (buck) regulator controller with a total of 8 pins. Here is the pin configuration and their functions:
1. COMP: Compensation node for stability.
2. CSN: Current sense negative input.
3. CSP: Current sense positive input.
4. GND: Ground reference.
5. SW: Switch node connected to the inductor.
6. VIN: Input voltage supply.
7. RAMP: Ramp generator for current mode control.
8. SS: Soft-start pin to control the startup time.
This IC is designed for high-efficiency power management in various applications such as power supplies for CPUs and other electronic devices. Its compact design and features make it suitable for a wide range of portable and battery-powered systems.

Manufacturer

The LM3488MMX is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, particularly analog and embedded processing devices. Founded in 1930, the company is known for its innovations in digital signal processing and microcontrollers, catering to a wide range of industries including automotive, industrial, communications, and consumer electronics. TI is recognized for its commitment to research and development, enabling advancements in various electronic applications.

Application

The LM3488MMX is a high-performance, synchronous buck controller designed for applications such as DC-DC converters, power supplies for telecommunications, industrial equipment, and embedded systems. It is suitable for powering microprocessors, FPGAs, and other digital components requiring efficient voltage regulation. Additionally, it can be used in battery-powered devices due to its low quiescent current and high efficiency, particularly in portable and automotive applications.

Equivalent

The LM3488MMX is a voltage regulator and can be compared to similar chips such as the LM2596, LM2576, and the TPS54331. While the LM3488 is a step-down (buck) converter with a specific feature set, these alternatives may offer similar functionalities with varying specifications. Always check datasheets for precise comparisons in terms of input/output voltage, current ratings, and other features.

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