MAX1951ESA+T

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MAX1951ESA+T

IC REG BUCK ADJUSTABLE 2A 8SOIC

  • 제조업체
  • Mfr.부분 #MAX1951ESA+T
  • 패키지 SOIC-8
  • 데이터시트
  • 재고 있음4148

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사양

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.6V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 5.5V
Current-Output 2A
Frequency-Switching 800kHz ~ 1.1MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

개요

Description

The MAX1951ESA+T is a step-down DC-DC converter integrated circuit designed by Maxim Integrated, which is now part of Analog Devices. It is crafted to provide a compact and efficient solution for converting higher input voltages into lower output voltages. This device is particularly used in applications requiring high efficiency at low load currents and compact size, such as portable devices and battery-powered equipment.
Key features of the MAX1951ESA+T include:
- Input voltage range: Typically operates from 2.7V to 5.5V.
- Output voltage: Adjustable output voltage, supporting various application needs.
- High efficiency: Often achieving efficiencies up to 95% depending on the load and input/output conditions.
- Current capability: Designed to deliver up to 1A of continuous output current.
- Compact package: Offered in a small 8-pin SOIC form factor, making it suitable for space-constrained applications.
- Protection features: Includes thermal shutdown and current limiting to protect against potential damage.
Overall, the MAX1951ESA+T is valued for its efficiency, compact size, and versatility in power management applications.

Features

The MAX1951ESA+T is a step-down DC-DC converter, designed for efficient power management in electronic applications. Key features include:
1. Input Voltage Range: Operates from a 2.6V to 5.5V input voltage, making it suitable for single-cell lithium-ion or multi-cell alkaline/NiCd/NiMH applications.
2. Output Voltage: Adjustable output ranging from 1.25V to the input voltage, allowing for flexibility in application use.
3. Output Current: Capable of delivering up to 500mA continuous output current, sufficient for powering a variety of low-power devices.
4. Efficiency: High efficiency up to 96%, which reduces heat generation and conserves battery life.
5. Quiescent Current: Low quiescent current of 16µA, enhancing battery efficiency during low-power or standby modes.
6. Switching Frequency: Fixed switching frequency of 1MHz, enabling the use of smaller external components and compact designs.
7. Protection Features: Includes overcurrent protection, thermal shutdown, and short-circuit protection to ensure reliable operation under various conditions.
8. Package: Available in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it easy to incorporate into circuit designs.
These features make the MAX1951ESA+T suitable for portable and battery-powered applications that require efficient power conversion and compact design.

Package

The MAX1951ESA+T is a DC-DC step-down converter from Maxim Integrated, packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. The "+T" indicates that the device is supplied in tape and reel packaging, suitable for automated assembly processes.

Pinout

The MAX1951ESA+T is a high-frequency PWM step-down DC-DC converter. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief description of its pin functions:
1. Pin 1 (COMP): Compensation pin for external compensation network.
2. Pin 2 (FB): Feedback input for setting the output voltage.
3. Pin 3 (SHDN): Shutdown pin to enable or disable the converter.
4. Pin 4 (GND): Ground connection.
5. Pin 5 (PGND): Power ground for the switching and power components.
6. Pin 6 (LX): Inductor connection for the switching node.
7. Pin 7 (IN): Supply voltage input.
8. Pin 8 (VCC): Internal supply voltage output.
This IC is used for applications requiring efficient power conversion like portable devices, offering features such as high efficiency, adjustable output voltage, and low dropout voltage. Always refer to the manufacturer's datasheet for more detailed and specific information.

Manufacturer

The MAX1951ESA+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. The company specializes in high-performance semiconductor products that serve various applications in electronics, such as power management, communications, consumer products, and automotive systems. Analog Devices, its parent company, is a major player in the semiconductor industry, providing solutions in analog, digital, and mixed-signal processing across diverse sectors.

Application

The MAX1951ESA+T is a high-efficiency, step-down DC-DC converter designed for applications requiring efficient power management. Key application areas include powering microprocessors and DSPs, portable devices, battery-powered equipment, and distributed power systems. Its small size and high-performance features make it suitable for compact, energy-efficient designs.

Equivalent

The MAX1951ESA+T is a step-down DC-DC converter from Maxim Integrated. Equivalent products include:
1. Analog Devices ADP2301: A high-efficiency step-down regulator.
2. Texas Instruments TPS54331: A 3-A, 28-V, synchronous step-down converter.
3. Microchip MCP16301: A high-efficiency buck converter.
4. ON Semiconductor NCP1117: A versatile low dropout regulator.
These alternatives provide similar functionalities with varying specifications that align with typical applications of the MAX1951ESA+T. Always verify the specific requirements and compatibility for your application.

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