LM25575MHX

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LM25575MHX

IC REG BUCK ADJ 1.5A 16HTSSOP

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  • Fr. Teil #LM25575MHX
  • Paket 16-HTSSOP
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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series SIMPLE SWITCHER®
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 6V
Voltage-Input(Max) 42V
Voltage-Output(Min/Fixed) 1.225V
Voltage-Output(Max) 40V
Current-Output 1.5A
Frequency-Switching 50kHz ~ 1MHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 16-PowerTSSOP (0.173, 4.40mm Width)

Übersicht

Description

The LM25575MHX is a step-down voltage regulator integrated circuit (IC) designed by Texas Instruments. It is part of the SIMPLE SWITCHER® series, which offers efficient and easy-to-use solutions for power management applications. The LM25575MHX can convert a higher input voltage down to a lower output voltage, making it suitable for applications requiring precise voltage regulation.
Key features of the LM25575MHX include a wide input voltage range (up to 42V), a fixed 1.5A output current, and a switching frequency adjustable up to 1 MHz, allowing for compact design and efficient operation. It also includes a range of protective features such as thermal shutdown, cycle-by-cycle current limiting, and under-voltage lockout, which enhance the reliability and safety of the device.
Typically used in industrial, automotive, and communications equipment, the LM25575MHX is valued for its high efficiency and ease of use in compact designs. It is available in an HTSSOP package, which provides a balance between thermal performance and space utilization.

Features

The LM25575MHX is a step-down switching voltage regulator from Texas Instruments, designed for applications requiring efficient, compact power management solutions. Key features include:
1. Wide Input Voltage Range: It supports a broad input voltage range from 6 V to 42 V, making it suitable for various industrial and automotive applications.
2. Adjustable Output Voltage: The device can be configured to provide an adjustable output voltage, typically from 1.225 V to 40 V, allowing flexibility for different application requirements.
3. High Efficiency: Delivers high efficiency, often exceeding 90%, thanks to its synchronous rectification and advanced switching techniques.
4. Current Mode Control: Utilizes current mode control for fast transient response and easy loop compensation.
5. Integrated Features: Includes an integrated high-side MOSFET to minimize component count and simplify design.
6. Protection Features: Offers several protection mechanisms, including cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout, enhancing reliability and safety.
7. Adjustable Switching Frequency: The switching frequency can be set from 50 kHz to 1 MHz, providing flexibility in optimizing size and performance.
8. Package: Available in a thermally enhanced 20-pin HTSSOP package, suitable for compact PCB layouts.
These features make the LM25575MHX a versatile choice for efficient power conversion in various electronic systems.

Package

The LM25575MHX is a step-down regulator IC by Texas Instruments, typically available in a PowerPAD HTSSOP (Thermally Enhanced Thin Shrink Small Outline Package) package. This package type provides efficient thermal performance, accommodating compact designs with effective heat dissipation.

Pinout

The LM25575MHX is a step-down voltage regulator with a high-efficiency, strong performance in DC-DC power conversion applications. The "MHX" denotes the package type, which is often a thermally enhanced HTSSOP (Thermal Thin Shrink Small Outline Package).
The LM25575 typically has 16 pins. Key functions of these pins include:
1. Vin: Input voltage pin.
2. SW: Switch node - connects to the inductor.
3. BST: Bootstrap pin - helps drive the gate of the internal high-side switch.
4. UVLO: Under-voltage lockout programming pin.
5. RT/SD: Allows setting of the switching frequency and shutdown control.
6. COMP: Compensation network pin for stability adjustments.
7. FB: Feedback pin for setting output voltage.
8. RCL: Current limit programming pin.
9. SS: Soft-start control pin.
10. EN: Enable pin for turning the regulator on or off.
11. VCC: Internal regulator output pin.
12. SYNC: Synchronization pin for frequency synchronization.
13. AGND: Analog ground.
14. PGND: Power ground.
These functions facilitate the conversion of a higher input voltage to a lower, regulated output voltage with high efficiency, suitable for various applications.

Manufacturer

The LM25575MHX is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. The company is one of the top semiconductor companies globally and is known for its innovation in analog technology, embedded processing, and digital signal processing. TI serves a wide range of industries including automotive, industrial, personal electronics, and communications equipment.

Application

The LM25575MHX is a step-down voltage regulator suitable for applications requiring efficient power management. It is commonly used in telecommunications, automotive systems, industrial equipment, and distributed power architectures. Its high voltage capability and wide input voltage range make it ideal for battery-powered devices, LED drivers, and solar inverters. The device is also utilized in systems that need a compact solution for converting high input voltages to lower output voltages with high efficiency.

Equivalent

The LM25575MHX is a buck switching voltage regulator from Texas Instruments. Equivalent products can include:
1. LM2596 - Another buck regulator by Texas Instruments.
2. LMR33630 - A step-down regulator also from TI.
3. LT3500 - A switching regulator from Analog Devices.
4. MP2307 - A buck converter from Monolithic Power Systems.
5. MC34063 - A versatile switching regulator from ON Semiconductor.
These alternatives may differ in specifications, so verify compatibility with your requirements.

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