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MAX1673ESA+

Name: MAX1673ESA+
Rating: 4.7 (12 reviews)

IC REG CHARGE PUMP ADJ 8SOIC

製造商
製造商。部分 #MAX1673ESA+
包 SOP8
資料表
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規格

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)

概述

Description

The MAX1673ESA+ is a high-efficiency, step-up (boost) DC-DC converter designed to provide a regulated output voltage from a low input voltage source, making it suitable for battery-powered applications. It features an output voltage range of 3.3V to 5.0V, with a maximum output current of 600mA. The device operates with an input voltage range of 0.9V to 5.5V, allowing it to efficiently utilize single-cell lithium-ion batteries or other low-voltage power sources.
The MAX1673ESA+ employs a built-in PWM control scheme to enhance efficiency, minimizing power loss during operation. It incorporates features such as a shutdown mode to conserve battery life and a soft-start function to reduce inrush current. The device is available in a 10-pin MSOP package, making it suitable for compact applications. Overall, the MAX1673ESA+ is ideal for portable electronics, IoT devices, and other applications requiring reliable power conversion from low-voltage sources.

Features

The MAX1673ESA+ is a high-efficiency, low-dropout voltage regulator designed for powering low-voltage devices. Key features include:
1. Output Voltage: Adjustable output voltage range from 1.3V to 5.5V.
2. Input Voltage Range: Operates from 2.5V to 6V.
3. High Efficiency: Up to 95% efficiency, minimizing power loss.
4. Low Dropout Voltage: Typically 200mV at full load, allowing operation with low input voltages.
5. Load Regulation: Excellent load regulation characteristics.
6. Quiescent Current: Low quiescent current (typically 20µA) for battery-operated devices.
7. Thermal Shutdown: Integrated thermal protection to prevent overheating.
8. Overcurrent Protection: Safeguards against output overcurrent conditions.
9. Package: Available in a space-saving SOIC-8 package.
These features make the MAX1673ESA+ suitable for various applications, including portable devices, communication equipment, and battery-powered systems.

Package

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

Pinout

The MAX1673ESA+ is an integrated circuit with a pin count of 8. It functions primarily as a high-efficiency, step-up (boost) DC-DC converter. This device is designed to generate a regulated output voltage from a lower input voltage, making it suitable for battery-powered applications.
The pin configuration includes the following functions:
1. VIN (Pin 1): Input voltage.
2. GND (Pin 2): Ground reference.
3. SW (Pin 3): Switch node for the inductor.
4. VOUT (Pin 4): Output voltage.
5. COMP (Pin 5): Compensation pin for stability.
6. RSET (Pin 6): Resistor for setting the output voltage.
7. EN (Pin 7): Enable pin to turn the device on/off.
8. FB (Pin 8): Feedback pin for voltage regulation.
This device is widely used in applications that require efficient voltage conversion with minimal external components.

Manufacturer

The MAX1673ESA+ is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated is a semiconductor company that specializes in designing and manufacturing analog and mixed-signal integrated circuits (ICs). They provide a wide range of products, including power management solutions, sensors, interface devices, and signal processing ICs, targeting various applications in consumer electronics, automotive, industrial, and communications sectors. The company is known for its innovation in power management and mixed-signal technology, catering to the growing demand for efficient and compact electronic solutions.

Application

The MAX1673ESA+ is a voltage regulator primarily used in portable and battery-powered devices. Its application areas include powering RF transceivers, microcontrollers, and sensors in wireless communication systems, consumer electronics, and industrial automation. It’s also suitable for use in automotive electronics and medical devices, offering low quiescent current and high efficiency for extended battery life.

Equivalent

The MAX1673ESA+ is a voltage regulator chip. Equivalent products include the TPS78333 from Texas Instruments, the MIC5205 from Microchip, and the LTC1440 from Analog Devices. Always check specific parameters like output voltage, current rating, and package type to ensure compatibility.