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MAX1673ESA

Name: MAX1673ESA
Rating: 4.7 (12 reviews)

IC REG CHARGE PUMP ADJ 8SOIC

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Mfr。パート #MAX1673ESA
パッケージ SOP8
データシート
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仕様

Package	Tube,Tube
ProductStatus	Obsolete
Function	Step-Down
OutputConfiguration	Negative
Topology	Charge Pump
OutputType	Adjustable
NumberofOutputs	1
Voltage-Input(Min)	2V
Voltage-Input(Max)	5.5V
Voltage-Output(Min/Fixed)	-1.5V
Voltage-Output(Max)	-5.5V
Current-Output	125mA
Frequency-Switching	350kHz
SynchronousRectifier	No
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概要

Description

The MAX1673ESA is a high-efficiency, step-down (buck) voltage regulator designed to provide a stable output voltage from a higher input voltage. It is particularly suitable for powering low-voltage digital circuits from battery sources. This device features a wide input voltage range, typically from 4.5V to 15V, and can output voltages as low as 0.8V, adjustable via external resistors.
Key features include a high-switching frequency that enables the use of smaller inductors and capacitors, enhancing overall design efficiency and minimizing space. The MAX1673ESA also incorporates built-in protection features like thermal shutdown and overcurrent protection, ensuring reliable operation under various conditions.
With a compact 8-pin SOIC package, it is well-suited for applications in portable devices, consumer electronics, and industrial equipment. By optimizing power management and reducing component size, the MAX1673ESA offers designers flexibility and efficiency in their power supply designs.

Features

The MAX1673ESA is a high-efficiency, step-up (boost) DC-DC converter designed for applications requiring low input voltages. Key features include:
1. Output Voltage: Adjustable output voltage range from 1.25V to 5.5V.
2. Input Voltage Range: Operates from 0.9V to 5.5V, making it suitable for single-cell battery applications.
3. Efficiency: High efficiency (up to 95%) to maximize battery life.
4. Output Current: Capable of delivering up to 300mA of output current.
5. Power Management: Integrated power-saving features, including a shutdown mode to reduce power consumption.
6. Switching Frequency: Fixed 1MHz switching frequency for reduced component size and improved performance.
7. Thermal Protection: Includes thermal shutdown to prevent overheating.
8. Small Package: Available in a compact 8-pin SOIC package, ideal for space-constrained designs.
These features make the MAX1673ESA suitable for portable applications, including battery-powered devices and handheld gadgets.

Package

The MAX1673ESA is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. This surface-mount package is designed for efficient thermal performance and space-saving in electronic applications.

Pinout

The MAX1673ESA is a voltage regulator IC with a total of 8 pins. Here’s a brief overview of the pin functions:
1. VIN (Pin 1): Input voltage supply.
2. GND (Pin 2): Ground connection.
3. VOUT (Pin 3): Output voltage, regulated for load.
4. EN (Pin 4): Enable pin; active high to turn on the regulator.
5. COMP (Pin 5): Compensation pin for stability and transient response.
6. NC (Pin 6): No connection; not used internally.
7. NC (Pin 7): No connection; not used internally.
8. VREF (Pin 8): Reference voltage output, typically used for feedback.
The MAX1673ESA is designed for low dropout applications and provides efficient voltage regulation, making it suitable for battery-powered devices.

Manufacturer

The MAX1673ESA is manufactured by Maxim Integrated, a company that specializes in analog and mixed-signal semiconductor products. Founded in 1983 and headquartered in San Jose, California, Maxim Integrated designs a wide variety of integrated circuits (ICs) used in various applications, including power management, signal processing, and interface solutions. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio in the semiconductor industry. The company focuses on innovation and quality, serving markets such as automotive, industrial, communications, and consumer electronics.

Application

The MAX1673ESA is primarily used in portable electronics, such as mobile phones, PDAs, and laptops for power management. It serves as a voltage regulator, providing low dropout and efficient power conversion. Additionally, it's utilized in battery-powered devices for voltage stabilization and in automotive applications for powering sensors and microcontrollers. Its versatility allows it to support various devices that require reliable power supply solutions.

Equivalent

Equivalent products to the MAX1673ESA include the LTC1043, MCP1700, and TPS783. These alternatives offer similar voltage regulation features but may differ in specifications such as output current, operating voltage range, and package type. Always consult datasheets for detailed comparisons to ensure compatibility with your specific application.