LM3478QMMX/NOPB

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LM3478QMMX/NOPB

IC REG CTRLR MULT TOP 8VSSOP

  • 제조업체Texas Instruments
  • Mfr.부분 #LM3478QMMX/NOPB
  • 패키지
  • 데이터시트
  • 재고 있음4556

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사양

Part Status Active
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 No
Control Features Enable, Frequency Control
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP
Base Product Number LM3478
Grade Automotive
Qualification AEC-Q100

개요

Description

The LM3478QMMX/NOPB is a high-performance, step-up (boost) DC-DC converter designed by Texas Instruments. It features a constant current output, making it ideal for applications requiring efficient power management, such as LED drivers, battery-powered devices, and portable equipment.
Key specifications include a wide input voltage range (2.97V to 40V) and an adjustable output voltage that can be set up to 60V. The device operates with a switching frequency up to 1.2 MHz, allowing for compact external components. It also includes features like over-current protection, thermal shutdown, and soft-start capabilities to ensure reliability and safety during operation.
The LM3478QMMX/NOPB is packaged in a 20-pin HTQFP format, making it suitable for surface mount applications. Its versatility, efficiency, and robust performance make it a popular choice among engineers and designers for various power management tasks.

Features

The LM3478QMMX/NOPB is a high-performance, versatile step-up (boost) voltage regulator designed for various applications. Key features include:
1. Wide Input Voltage Range: Operates from 2.97V to 40V, making it suitable for a variety of power sources.
2. Output Voltage: Adjustable output voltage up to 60V, allowing flexibility in circuit design.
3. High Efficiency: Typically achieves up to 95% efficiency, reducing heat generation and improving battery life.
4. Current Limit: Integrated current limiting for enhanced protection.
5. PWM Control: Uses pulse-width modulation for improved regulation and efficiency.
6. External Compensation: Allows optimization for specific applications with external components.
7. Low Quiescent Current: Minimizes power consumption during standby mode.
8. Thermal Shutdown: Built-in thermal protection to prevent damage from overheating.
9. Compact Package: Available in a small 8-pin MLP package, facilitating space-constrained designs.
These features make the LM3478QMMX/NOPB ideal for battery-powered devices, LED drivers, and other applications requiring efficient voltage regulation.

Package

The LM3478QMMX/NOPB is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package) format. This surface-mount package is designed for efficient thermal performance and reduced space in electronic circuits.

Pinout

The LM3478QMMX/NOPB is a versatile DC-DC step-up (boost) converter with a total of 8 pins. Here is a brief overview of its pin count and functions:
1. SW (Pin 1): Switch output – connects to the inductor.
2. GND (Pin 2): Ground – the common return path for current.
3. COMP (Pin 3): Compensation – for stability in feedback loop.
4. Rset (Pin 4): Resistor setting – used to set the switching frequency.
5. VCC (Pin 5): Supply voltage – provides power to the IC.
6. VSENSE (Pin 6): Voltage sense – for feedback to regulate output voltage.
7. CSN (Pin 7): Current sense – monitors inductor current.
8. CSP (Pin 8): Current sense – another pin for current sensing.
The LM3478 is designed for applications requiring a compact, highly efficient power supply solution.

Manufacturer

The manufacturer of the LM3478QMMX/NOPB is Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and digital electronic components. Founded in 1930, TI is renowned for its innovation in the semiconductor industry, producing products such as microcontrollers, processors, and various analog devices. The LM3478 is a synchronous step-down (buck) regulator, commonly used in power management applications. TI focuses on providing solutions for various sectors, including automotive, industrial, communications, and consumer electronics.

Application

The LM3478QMMX/NOPB is a versatile DC-DC boost converter, ideal for applications such as battery-powered devices, portable electronics, LED drivers, and power supplies for sensors. It supports high-efficiency power conversion and can be used in automotive, industrial, and consumer electronics, providing reliable voltage regulation in compact designs.

Equivalent

The LM3478QMMX/NOPB is a step-up (boost) DC-DC converter. Equivalent products include:
1. TPS61030 (Texas Instruments)
2. LT1308 (Analog Devices)
3. MAX757 (Maxim Integrated)
4. NCP1402 (ON Semiconductor)
5. MICROCHIP MCP1640
Always check specifications for compatibility with your application.

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