MAX1673ESA

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MAX1673ESA

+Nomenclature

IC REG CHARGE PUMP ADJ 8SOIC

  • FabricantAnalog Equipment GmbH / intégration Maxim

  • Pièce fabricant #MAX1673ESA

  • Package SOP-8

  • En stock4171

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Spécifications

Attribut Valeur
Package / Case Tube,Tube
Part Status Obsolete
Function Step-Down
Output Configuration Negative
Topology Charge Pump
Output Type Adjustable
Number of Outputs 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
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Présentation

Description

The MAX1673ESA is a high-efficiency, step-up DC-DC converter designed by Maxim Integrated. It is used to boost input voltages to higher levels, making it suitable for battery-operated devices where maintaining a stable output voltage is crucial despite the dropping battery voltage. The MAX1673ESA operates over a wide input range and is capable of delivering up to 12V output. It features a low quiescent current, which extends battery life, and includes a built-in, high-efficiency power switch to reduce the need for external components.
Key features include a high switching frequency, allowing the use of small inductors and capacitors, and a shutdown mode to disable the converter and reduce power consumption to nearly zero. It also provides protection features such as over-temperature and over-current protection. The device is housed in an 8-pin SOIC package, making it easy to integrate into various portable electronic designs. Ideal applications include portable consumer electronics, battery-powered devices, and any system requiring efficient voltage boosting with minimal external component count.

Equivalent

The MAX1673ESA is a step-up DC-DC converter. Equivalent products include:
1. LT1615 from Linear Technology/Analog Devices
2. MIC2250 from Microchip Technology
3. TPS61070 from Texas Instruments
4. NCP1402 from ON Semiconductor
These alternatives offer similar functionality, but differences in specifications and features should be considered for compatibility.

Features

The MAX1673ESA is a low-dropout (LDO) linear voltage regulator designed for efficient power management in portable devices. Key features include:
1. Output Voltage: Provides a fixed output voltage, typically 3.3V.
2. Low Dropout Voltage: Ensures efficient operation even when the input voltage is close to the output voltage.
3. Low Quiescent Current: Minimizes power consumption, making it ideal for battery-operated applications.
4. High Output Current: Capable of delivering up to 250mA of output current.
5. Shutdown Mode: Features a low-power shutdown mode to further conserve battery life.
6. Thermal Protection: Includes a thermal shutdown feature to prevent overheating.
7. Current Limiting: Offers current limiting to protect the device against overcurrent conditions.
8. Small Package: Available in a compact 8-pin SO package, suitable for space-constrained applications.
These features make the MAX1673ESA a versatile choice for designers who need a reliable LDO regulator in portable and battery-powered electronic devices.

Pinout

The MAX1673ESA is a step-up DC-DC converter designed by Maxim Integrated. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The functions of the pins are as follows:
1. LX: Inductor connection point for the power inductor.
2. GND: Ground connection for the circuit.
3. OUT: Output voltage pin.
4. FB: Feedback input to set the output voltage.
5. ON: Enable/disable control pin for the device.
6. SHDN: Shutdown control pin to reduce power consumption.
7. V+: Supply voltage input.
8. N.C. (No Connection): Typically not internally connected but may be used for mechanical stability.
This device is used for efficiently boosting low voltages to higher levels, making it suitable for battery-powered applications.

Manufacturer

The MAX1673ESA is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was an American company known for designing, manufacturing, and selling analog and mixed-signal integrated circuits. The company specialized in semiconductors and provided various products for power management, interface, and sensor applications, among others. In August 2021, Maxim Integrated was acquired by Analog Devices, Inc., a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices serves a wide range of industries, including industrial, automotive, communications, and consumer electronics, offering solutions that are essential for modern electronic systems.

Application

The MAX1673ESA is a step-up DC-DC converter designed for applications that require efficient power management. It is commonly used in portable devices due to its ability to extend battery life by boosting low input voltages to higher levels. Key application areas include:
1. Battery-powered devices: Enhances performance in devices like smartphones, tablets, and digital cameras.
2. Handheld instruments: Powers portable medical or measurement tools that need efficient voltage conversion.
3. Wireless communication devices: Supports RF modules that require stable voltage levels.
4. Consumer electronics: Used in MP3 players, GPS units, and other compact consumer gadgets.
5. LED drivers: Suitable for driving high-brightness LEDs in portable applications.
These applications benefit from the chip's ability to maintain high efficiency and a minimal footprint.

Package

The MAX1673ESA is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

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