MAX1771CSA+

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MAX1771CSA+

IC REG CTRLR BST/BUCK-BST 8SOIC

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Spezifikationen

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)

Übersicht

Description

The MAX1771CSA+ is a high-efficiency, step-up (boost) DC-DC converter designed for battery-powered applications. It operates over a wide input voltage range (typically 2.5V to 5.5V) and can produce output voltages up to 28V, making it suitable for powering devices like sensors, LED drivers, and other low-voltage applications that require higher voltage levels.
Key features include a built-in switch, low quiescent current, and adjustable output voltage, allowing for flexibility in design. The device supports a range of switching frequencies, which can be adjusted to optimize efficiency and minimize output ripple. It also includes protections against over-current and thermal overload.
The MAX1771CSA+ is packaged in a compact 8-pin SOIC and is well-suited for portable electronics due to its small size and high efficiency, which extends battery life. Overall, it is an effective solution for applications requiring reliable, efficient step-up voltage conversion.

Features

The MAX1771CSA+ is a high-efficiency, step-up DC-DC converter designed for applications requiring a voltage boost. Key features include:
1. Input Voltage Range: Operates from 2.5V to 5.5V, suitable for single-cell lithium-ion and alkaline batteries.
2. Output Voltage: Adjustable output voltage up to 34V, providing versatility for various applications.
3. Efficiency: High efficiency (up to 95%) minimizes power loss and extends battery life.
4. Low Quiescent Current: Features low quiescent current for extended battery life in portable devices.
5. Fixed Frequency: Operates at a fixed frequency of 1MHz, allowing for small external components and minimized PCB space.
6. Current Limiting: Integrated current limiting for safe operation and protection against overcurrent conditions.
7. Thermal Shutdown: Built-in thermal shutdown protects the device from overheating.
8. Small Package: Available in a 8-pin SOIC package, enabling compact designs.
These features make the MAX1771CSA+ ideal for battery-powered applications like portable electronics and LED drivers.

Package

The MAX1771CSA+ is packaged in a 8-pin SOIC (Small Outline Integrated Circuit) package, which is surface-mounted and designed for efficient thermal performance and space-saving on PCBs.

Pinout

The MAX1771CSA+ is a step-up DC-DC converter with a pin count of 8. Its primary functions include boosting input voltage to a higher output voltage, making it suitable for applications requiring higher voltage from a lower voltage source. The pin configuration is as follows:
1. VIN: Input voltage supply.
2. GND: Ground reference.
3. SW: Switch node, connects to the inductor.
4. VOUT: Output voltage.
5. COMP: Compensation network for stability.
6. FB: Feedback input for voltage regulation.
7. EN: Enable pin to activate/deactivate the device.
8. PGND: Power ground for high current paths.
These pins allow the MAX1771CSA+ to operate efficiently in portable devices, providing a regulated output from a variety of input sources.

Manufacturer

The MAX1771CSA+ is manufactured by Maxim Integrated, which is a subsidiary of Analog Devices, Inc. Founded in 1983, Maxim Integrated is a semiconductor company that specializes in analog and mixed-signal integrated circuits. Their products are widely used in various applications, including consumer electronics, automotive, industrial, and telecommunications. The company is known for designing innovative solutions that enhance performance and efficiency in electronic systems.

Application

The MAX1771CSA+ is a high-efficiency, step-up DC-DC converter primarily used in battery-powered applications. Its application areas include portable devices like cell phones, digital cameras, and handheld instruments, as well as powering LEDs, sensors, and other low-voltage circuits from a single-cell battery. It is also suitable for energy harvesting systems and applications requiring low quiescent current for extended battery life.

Equivalent

The MAX1771CSA+ is a boost converter chip. Equivalent products include the LT1302, TPS61030, and MCP1640 from Analog Devices, Texas Instruments, and Microchip respectively. These alternatives offer similar functionalities, such as step-up voltage conversion, but ensure to check specific parameters like input/output voltage, current ratings, and efficiency for compatibility with your application.

Versand

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