LM2662M

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LM2662M

IC REG CHARGE PUMP INV 8SOIC

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  • Fr. Teil #LM2662M
  • Paket SOIC (D)-8
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Spezifikationen

Package Tube
ProductStatus Not For New Designs
Function Ratiometric
OutputConfiguration Positive or Negative
Topology Charge Pump
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 1.5V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) -Vin, 2Vin, Vin/2
Current-Output 200mA
Frequency-Switching 10kHz, 75kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Übersicht

Description

The LM2662M is a charge pump voltage converter integrated circuit (IC) designed by Texas Instruments. It is primarily used for applications requiring voltage inversion or doubling. The device operates with a wide input voltage range, typically from 1.5V to 5.5V, making it versatile for various low-power applications.
Key features include a high efficiency of up to 90%, which makes it suitable for battery-powered devices. The LM2662M is capable of delivering an output current of up to 200mA. It operates at a switching frequency of about 150kHz, allowing for the use of smaller capacitors, which helps reduce overall circuit size.
The IC requires only a few external components, typically two external capacitors, to function effectively. It is available in a small surface-mount package, making it ideal for space-constrained designs. The LM2662M is commonly used in applications such as LCD biasing, operational amplifier power supplies, and interfacing between different logic voltage levels. Its simplicity and efficiency make it a popular choice for designers looking to implement compact, efficient voltage conversion solutions.

Features

The LM2662M is a voltage converter IC primarily designed for applications requiring voltage inversion or doubling. Key features include:
1. Voltage Conversion: It can invert input voltages or double them efficiently, making it suitable for generating negative voltages from a positive input or vice versa.
2. Output Voltage Range: The device supports a wide output voltage range, making it versatile for different applications.
3. Efficiency: The LM2662M is designed for high efficiency, typically around 90%, which helps in reducing power loss and heat generation.
4. Low Quiescent Current: It has a low quiescent current, which is beneficial for battery-powered applications, enhancing overall power efficiency.
5. Switching Frequency: The device operates at a high switching frequency, which allows for smaller external components, reducing the overall circuit size.
6. Simplicity: Requires minimal external components, simplifying the design and layout of applications.
7. Protection Features: Includes built-in protection mechanisms such as short-circuit protection, enhancing reliability.
8. Package Options: Available in small-scale packages like SOIC, suitable for space-constrained applications.
These features make the LM2662M ideal for use in portable devices, battery-powered systems, and other applications requiring efficient voltage conversion.

Package

The LM2662M is typically available in an 8-pin Small Outline Integrated Circuit (SOIC) package. This package type is designed for surface-mount technology, offering a compact form factor for electronic circuits.

Pinout

The LM2662M is a switched-capacitor voltage converter IC that typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is used for voltage doubling or inverting applications. Here's a brief overview of its pin functions:
1. V+: Positive voltage input pin.
2. GND: Ground pin for the IC.
3. LV: Low voltage select pin. When connected to ground, it optimizes performance for low input voltages.
4. C1+: Positive terminal for the external flying capacitor.
5. C1-: Negative terminal for the external flying capacitor.
6. Vout: Voltage output pin of the converter.
7. OSC: Oscillator control pin. Can be used with an external capacitor to adjust the oscillator frequency.
8. SD: Shutdown pin. When connected to ground, it turns off the device to save power.
The LM2662M is widely used for applications where a negative voltage rail is required or where a voltage needs to be doubled, such as in LCD biasing, operational amplifier biasing, and dual-supply systems.

Manufacturer

The LM2662M is a product manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. TI’s products are used in various applications including industrial, automotive, personal electronics, and communication equipment. The company is known for its focus on innovation and technology development, providing components essential for building electronic devices and systems.

Application

The LM2662M is a charge-pump voltage converter used primarily in applications requiring voltage inversion or doubling. Key application areas include generating negative voltage for biasing op-amps, powering LCD displays, and providing voltage levels for sensor interfaces in battery-powered devices. Its compact design and efficiency make it suitable for portable electronics, communication devices, and other low-power applications where board space and power efficiency are critical.

Equivalent

Equivalent products to the LM2662M charge pump voltage converter include the LTC1044, MAX660, MIC2660, and TC7660. These components are often used in similar applications, providing voltage inversion and doubling. When selecting an equivalent, ensure it matches the electrical specifications and operating conditions of your application.

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