MAX828EUK+T

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MAX828EUK+T

IC REG CHARG PUMP INV 25MA SOT23

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  • 包 SOT-23-5
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規格

Package Tape & Reel (TR),Bulk
ProductStatus Obsolete
Function Ratiometric
OutputConfiguration Negative
Topology Charge Pump
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 1.5V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) -Vin
Current-Output 25mA
Frequency-Switching 12kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

概述

Description

The MAX828EUK+T is a charge pump voltage inverter IC designed by Maxim Integrated, now part of Analog Devices. This device efficiently generates a negative output voltage from a positive input voltage, making it useful in various power management applications where negative voltages are required. It operates with a low current consumption, typically around 45 µA, and delivers an output current of up to 25 mA.
The MAX828EUK+T works over a broad input voltage range from 1.5V to 5.5V, making it versatile for use with standard battery voltages. It features a tiny SOT23-5 package, allowing for compact designs. The device requires only two external capacitors, simplifying the design and reducing the overall component count and cost.
This IC is commonly used in applications like LCD biasing, operational amplifier circuits, and any systems needing a negative voltage rail. Its ease of use, small size, and low power requirements make it a popular choice for portable and battery-operated devices.

Features

The MAX828EUK+T is a step-up DC-DC converter designed by Maxim Integrated. It is known for its compact size and efficiency, making it suitable for battery-powered devices. Key features include:
1. Low Supply Voltage: Operates with input voltages as low as 0.8V, which allows it to be used in single-cell battery applications.

2. Output Voltage Options: Typically configured to output 5V, suitable for powering various electronic components and circuits.
3. High Efficiency: Offers efficiency rates up to 88%, minimizing energy loss and extending battery life.
4. Low Quiescent Current: Draws low current in no-load conditions, further conserving power.
5. Compact Package: Offered in a tiny SOT23-5 package, allowing for space-saving designs, which is beneficial for portable and compact devices.
6. Fixed Frequency Operation: Provides consistent performance with a fixed switching frequency, which helps minimize electromagnetic interference (EMI).
7. Low Ripple and Noise: Designed to produce minimal output voltage ripple and noise, making it suitable for sensitive electronic applications.
These features make the MAX828EUK+T a versatile and efficient choice for power management in compact electronic devices.

Package

The MAX828EUK+T is a SOT-23-5 package. It is a small outline transistor package with five leads, commonly used for surface-mount applications.

Pinout

The MAX828EUK+T is a DC-DC step-up voltage converter from Maxim Integrated. It is specifically designed for small and portable devices requiring a low-power boost converter. The device comes in a small 5-pin SOT-23 package.
Pin Count:
1. GND - Ground reference for the circuit.
2. LX - Inductor connection; switching node.
3. OUT - Output voltage pin.
4. VCC - Supply voltage input.
5. SHDN - Shutdown control input.
Function:
The MAX828EUK+T functions as a step-up (boost) converter that increases a lower input voltage to a higher output voltage, suitable for powering devices requiring a higher voltage than the available battery or input source. It supports low quiescent current and high efficiency, which is ideal for battery-powered applications. The integrated circuit ensures minimal external components, which is beneficial for space-constrained designs.

Manufacturer

The MAX828EUK+T is manufactured by Maxim Integrated, which is a company that specializes in the design and production of analog and mixed-signal integrated circuits. Maxim Integrated, now part of Analog Devices, Inc. (ADI) following its acquisition in 2021, focuses on providing solutions for a wide range of applications, including power management, signal processing, and interface technologies. As an industry leader, the company supports sectors such as consumer electronics, automotive, communications, and industrial automation.

Application

The MAX828EUK+T is a CMOS charge-pump voltage inverter. Its application areas include powering negative bias voltage for LCD displays, generating negative voltages for operational amplifiers, and powering analog circuits in battery-powered devices. It is also useful in providing negative supply voltages for data acquisition systems and portable electronic devices, as well as in applications requiring a small footprint and minimal external components.

Equivalent

The MAX828EUK+T is a step-up DC-DC converter by Maxim Integrated. Equivalent products include:
1. LM2731 by Texas Instruments
2. MIC2605 by Microchip Technology
3. MC34063 by ON Semiconductor
4. NCP1400 by ON Semiconductor
5. TPS61070 by Texas Instruments
These alternatives offer similar boost converter functions but may differ in specifications, so checking datasheets for compatibility with your application is recommended.

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