LM5175RHFR

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LM5175RHFR

SYNCHRONOUS 4-SWITCH BUCK-BOOST

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Specifications

Part Status Active
Output Type Transistor Driver
Function Step-Up/Step-Down
Output Configuration Positive
Topology Buck-Boost
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 3.5V ~ 42V
Frequency - Switching 100kHz ~ 600kHz
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Enable, Frequency Control, Power Good, Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 28-VFQFN Exposed Pad
Supplier Device Package 28-VQFN (5x4)
Base Product Number LM5175

Overview

Description

The LM5175RHFR is a high-efficiency, dual-output synchronous buck regulator designed for various applications, including industrial systems, automotive, and telecommunications. It features a wide input voltage range of 4.5V to 60V and can deliver up to 5A per channel. The device operates with a peak efficiency of up to 95%, making it suitable for power-sensitive applications.
Key features include adjustable output voltage through an external resistor divider, integrated high- and low-side MOSFETs, and comprehensive protection mechanisms like overcurrent, thermal shutdown, and under-voltage lockout. The LM5175RHFR supports both current mode and voltage mode control, allowing for stable operation across different load conditions.
It also offers a programmable switching frequency, enhancing design flexibility, while its compact layout and thermal performance make it suitable for space-constrained designs. Overall, the LM5175RHFR is ideal for power management solutions requiring high efficiency and reliability in demanding environments.

Features

The LM5175RHFR is a high-performance, dual-output buck-boost DC-DC regulator designed for versatility in power management. Key features include:
1. Wide Input Voltage Range: Accepts input voltages from 3.5V to 55V, making it suitable for various applications.
2. Dual Outputs: Capable of delivering two regulated outputs simultaneously.
3. High Efficiency: Achieves efficiencies up to 96%, minimizing heat generation and improving overall system performance.
4. Programmable Switching Frequency: Allows flexibility in selecting frequencies between 100 kHz to 1 MHz, optimizing for application requirements.
5. Integrated Protection Features: Includes overvoltage, undervoltage, thermal shutdown, and current limiting to ensure safe operation.
6. Small Package Size: Available in a compact 32-pin HTQFP package, ideal for space-constrained designs.
7. Ease of Use: Features such as adjustable output voltage and soft-start capability simplify design and implementation.
These features make the LM5175RHFR suitable for various applications, including automotive, industrial, and consumer electronics.

Package

The LM5175RHFR is available in a TQFN (Thin Quad Flat No-lead) package type. This package features a compact design suitable for surface mounting, enhancing thermal performance and reducing space on printed circuit boards.

Pinout

The LM5175RHFR is a dual-channel DC-DC buck-boost controller with a pin count of 28. It is designed for a wide input voltage range, enabling it to manage power conversion in various applications.
Key functions of the LM5175 include:
- Buck-Boost Regulation: Supports both buck and boost conversion, allowing for efficient power management in systems where the output voltage may be above or below the input voltage.
- Adjustable Output Voltage: The output voltage can be set through external resistors, providing flexibility for different applications.
- Integrated MOSFET Drivers: Drives external MOSFETs for improved efficiency in power conversion.
- Current Mode Control: Enhances transient response and stability.
- Synchronization: Allows for synchronization of multiple devices to reduce noise and ripple.
- Protection Features: Includes overcurrent protection, thermal shutdown, and under-voltage lockout.
These features make the LM5175 suitable for various applications, including battery management systems and portable devices.

Manufacturer

The LM5175RHFR is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments specializes in the design and production of semiconductors and various integrated circuits. Founded in 1930, the company is renowned for its innovations in analog and embedded processing technologies, serving a wide array of industries including automotive, industrial, consumer electronics, and communications. TI is particularly well-known for its analog chips, digital signal processors, and microcontrollers, making it a key player in the global semiconductor market.

Application

The LM5175RHFR is a dual-channel, synchronous buck controller designed for power management in various applications. Key areas include high-efficiency power supplies for telecommunications, data centers, industrial automation, automotive systems, and consumer electronics. It's suitable for powering processors, FPGAs, and ASICs, enabling efficient voltage regulation in compact designs. Additionally, it supports battery management systems and power banks.

Equivalent

The LM5175RHFR chip is a versatile dual-channel buck-boost regulator. Equivalent products include the TPS563201 from Texas Instruments, LTC3780 from Analog Devices, and MAX8756 from Maxim Integrated. When selecting an equivalent, ensure to consider specifications such as input/output voltage range, current ratings, and efficiency to ensure compatibility with your application.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

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