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LM21215MHX

Name: LM21215MHX
Rating: 4.7 (12 reviews)

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規格

Brand	Texas Instruments
Product Type	Switching Voltage Regulators
Subcategory	PMIC - Power Management ICs
Package / Case	HTSSOP-20
Unit Weight	0.002885 oz

概述

Description

LM21215MHX is a specific model of a low-dropout (LDO) linear voltage regulator, typically used in electronic applications to provide a stable output voltage from a higher input voltage. This component is designed to deliver high performance with low output voltage noise, which is crucial for sensitive analog and digital circuits.
Key features often include low quiescent current, fast transient response, and thermal protection, making it suitable for battery-powered devices and applications requiring efficient power management. The "MHX" designation may indicate specific packaging or performance characteristics, such as high temperature or enhanced reliability.
This regulator is particularly valued in environments where space is limited, and efficiency is critical, such as in mobile devices, consumer electronics, and various embedded systems. It's important to consult the specific datasheet for detailed electrical characteristics, pin configurations, and application circuits.

Features

The LM21215MHX is a high-efficiency, synchronous buck regulator IC designed for converting a wide input voltage range into a stable output voltage. Key features include:
1. Input Voltage Range: Typically supports 4.5V to 15V.
2. Output Voltage: Adjustable output with a range down to 0.8V.
3. High Efficiency: Up to 95%, minimizing heat generation.
4. Load Current: Can deliver up to 15A output current.
5. Switching Frequency: Offers a fixed frequency around 1MHz for optimal performance and reduced component size.
6. Protection Features: Includes over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown.
7. Soft-start Function: Reduces inrush current during startup.
8. Compact Package: Available in a thermally efficient package for easy integration into space-constrained applications.
These features make the LM21215MHX suitable for various applications, including power management in computing and industrial systems.

Package

The LM21215MHX is available in a TO-220 package type. This package features a metal tab for heat dissipation, making it suitable for power applications.

Pinout

The LM21215MHX is a step-down (buck) voltage regulator with a pin count of 10. It features several key functions, including:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switch node for connecting to the inductor.
3. GND (Pin 3): Ground reference.
4. BOOT (Pin 4): Bootstrapping capacitor connection for high-side gate drive.
5. COMP (Pin 5): Compensation network connection for stability.
6. CSN/PSN (Pins 6 & 7): Current sense connections for overcurrent protection.
7. EN (Pin 8): Enable pin for turning the device on/off.
8. VOUT (Pin 9): Output voltage sense connection.
9. Rset (Pin 10): Resistor connection for setting output voltage.
This device is designed to provide high efficiency and support various applications including point-of-load regulation.

Manufacturer

The LM21215MHX is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments specializes in designing and manufacturing a wide range of electronic components, including analog and embedded processing chips, which are used in various applications such as industrial, automotive, communications, and consumer electronics. Founded in 1930, TI is known for its innovation in the field of integrated circuits and semiconductor technology, providing solutions that enable smarter and more efficient electronic systems. The LM21215MHX specifically is a voltage regulator, indicating TI's involvement in the power management sector of electronics.

Application

The LM21215MHX is a high-efficiency step-down (buck) voltage regulator suitable for various applications, including power management for processors, FPGAs, and microcontrollers. It is commonly used in telecommunications, industrial equipment, automotive systems, and consumer electronics where precise voltage regulation and high current capability are required. Its features make it ideal for battery-powered devices, LED drivers, and point-of-load power supplies.

Equivalent

The LM21215MHX is a step-down (buck) voltage regulator. Equivalent products include the LM2596, TPS5430, and MP1584. Other alternatives include the XC6206 and LT1763, depending on specific requirements for output current, voltage range, and features. Always verify specifications for compatibility with your application.