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MAX1771CSA

Name: MAX1771CSA
Rating: 4.7 (12 reviews)

IC REG CTRLR BST/BUCK-BST 8SOIC

製造商
製造商。部分 #MAX1771CSA
包 8-SOIC (0.154, 3.90mm Width)
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規格

Supplier	Analog Devices Inc./Maxim Integrated
Package	Tube
ProductStatus	Active
OutputType	Transistor Driver
Function	Step-Up, Step-Up/Step-Down
OutputConfiguration	Positive
Topology	Boost, Buck-Boost
NumberofOutputs	1
OutputPhases	1
Voltage-Supply(Vcc/Vdd)	3V ~ 16.5V
Frequency-Switching	300kHz
DutyCycle(Max)	92%
SynchronousRectifier	No
ClockSync	No
ControlFeatures	Enable
OperatingTemperature	0°C ~ 70°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概述

Description

The MAX1771CSA is a high-performance, step-up (boost) DC-DC converter designed for powering applications requiring a higher output voltage from a lower input voltage. It is particularly useful for battery-powered devices, enabling efficient power conversion from single-cell batteries (like lithium-ion or alkaline) to higher voltages needed for various components.
Key features include a wide input voltage range (2.7V to 15V), adjustable output voltage (up to 34V), and a high efficiency of up to 95%. The device operates with a switching frequency of 1.2 MHz, allowing for smaller external components and reducing board space. It includes features such as low quiescent current, thermal shutdown, and current limiting for enhanced reliability.
The MAX1771CSA is commonly used in portable electronics, LED drivers, and other applications where compact size and efficiency are critical. Its integration of advanced technology makes it a versatile choice for developers seeking to optimize power management in their designs.

Features

The MAX1771CSA is a high-efficiency DC-DC step-up (boost) converter designed for applications requiring low input voltage. Key features include:
1. Wide Input Voltage Range: Operates from 0.9V to 5.5V, making it suitable for battery-powered devices.
2. Output Voltage: Adjustable output voltage up to 28V.
3. High Efficiency: Achieves up to 95% efficiency, reducing heat generation and prolonging battery life.
4. Low Quiescent Current: Features low quiescent current, ideal for energy-sensitive applications.
5. Integrated Switch: Includes an internal N-channel MOSFET, simplifying design and reducing component count.
6. Adjustable Switching Frequency: Offers flexibility with a switching frequency range of 100kHz to 1MHz.
7. Protection Features: Includes features such as overvoltage protection and thermal shutdown.
8. Compact Package: Available in a 8-pin SO package, facilitating integration into space-constrained designs.
The MAX1771CSA is widely used in portable electronics, IoT devices, and battery-operated applications.

Package

The MAX1771CSA is packaged in a 8-pin SOIC (Small Outline Integrated Circuit) format.

Pinout

The MAX1771CSA is a high-efficiency step-up (boost) DC-DC converter with a pin count of 8. It is primarily designed for powering devices from low-voltage sources, such as batteries.
Pin Functions:
1. VIN (Pin 1) - Input voltage supply.
2. GND (Pin 2) - Ground reference.
3. SW (Pin 3) - Switch node where the inductor connects.
4. FB (Pin 4) - Feedback pin for voltage regulation; connects to a resistor divider.
5. COMP (Pin 5) - Compensation for the control loop stability.
6. SHDN (Pin 6) - Shutdown control; active low to enable/disable the converter.
7. VOUT (Pin 7) - Output voltage; where the boosted voltage is available.
8. NC (Pin 8) - No connection; can be left unconnected.
The MAX1771CSA is widely used in portable applications due to its ability to efficiently convert low input voltages to higher output voltages.

Manufacturer

The MAX1771CSA is manufactured by Maxim Integrated, a company that specializes in the design and production of analog and mixed-signal integrated circuits. Founded in 1983, Maxim Integrated focuses on creating high-performance semiconductor solutions for various applications, including automotive, industrial, communications, and consumer electronics. The company is known for its innovative technologies, including power management, analog signal processing, and sensor interface solutions. In 2020, Maxim Integrated was acquired by Analog Devices, Inc., further expanding its portfolio and capabilities in the semiconductor industry.

Application

The MAX1771CSA is a high-efficiency DC-DC step-up (boost) converter primarily used in battery-powered devices. Its application areas include portable electronics, LED drivers, energy harvesting systems, and power supplies for sensors. It is suitable for applications requiring a compact design and efficient power management, such as mobile phones, handheld devices, and automotive systems.

Equivalent

The MAX1771CSA is a high-efficiency step-up (boost) DC-DC converter. Equivalent products include:
1. TPS61030 (Texas Instruments)
2. LT1302 (Analog Devices)
3. MICROCHIP MCP1640
4. LM2577 (Texas Instruments)
5. MAX610 (Maxim Integrated)
Always verify specifications like input voltage range, output current, and efficiency for compatibility.