LM2662M

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LM2662M

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IC REG CHARGE PUMP INV 8SOIC

  • Nhà sản xuấtTexas Dụng cụ

  • Ông. Phần #LM2662M

  • Gói SOIC (D)-8

  • Có sẵn3774

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Thông số kỹ thuật

thuộc tính Giá trị
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)

Tổng quan

Description

The LM2662M is a CMOS charge-pump voltage converter designed by Texas Instruments. It is used primarily for voltage regulation and inversion in low-power applications. This versatile IC can convert a positive input voltage to a corresponding negative output voltage or double the input voltage, making it ideal for applications in battery-powered devices where efficient voltage conversion is needed.
Key features of the LM2662M include high efficiency, a wide input voltage range (typically from 1.5V to 5.5V), and a low quiescent current, which is beneficial for prolonging battery life. It operates at a fixed frequency, simplifying the design process and minimizing external component requirements. The LM2662M also includes a shutdown pin, enabling low power consumption when the device is not in use.
Common applications for the LM2662M include powering operational amplifiers, generating negative supply voltages, or producing higher voltage rails in portable electronic devices. Its compact size and efficiency make it a popular choice for designers looking to implement compact power solutions.

Equivalent

Equivalent products to the LM2662M charge pump voltage inverter include the LT1054, TC7660, MAX660, and ADM660. These chips provide similar voltage inverting capabilities and can be used in designs requiring negative voltage generation from a positive supply. Always check the specific specifications and pin configurations as they may vary slightly between manufacturers.

Features

The LM2662M is a switched-capacitor voltage converter integrated circuit designed for applications requiring a compact and efficient power supply solution. Key features include:
1. Voltage Conversion: Capable of inverting or doubling the input voltage, making it versatile for various power supply needs.

2. Output Current: Provides up to 200 mA of output current, suitable for low to moderate power applications.
3. Efficiency: High efficiency due to the switched-capacitor design, reducing power loss.
4. Operating Voltage: Can operate over a wide input voltage range from 1.5V to 5.5V, accommodating different power sources.
5. Low Quiescent Current: Features a low quiescent current, making it energy-efficient during standby mode.
6. Shutdown Mode: Includes a shutdown pin to minimize power consumption when the device is not in use.
7. Compact Package: Available in a small SOIC package, allowing for space-saving in circuit board designs.
8. Thermal Performance: Designed to offer good thermal performance to maintain reliability in various operating conditions.
These features make the LM2662M ideal for applications in battery-powered devices, LCD displays, and portable electronics.

Pinout

The LM2662M is a switched-capacitor voltage converter IC typically used for voltage inversion or doubling. It is available in an 8-pin SOIC package. Here is a brief overview of its pin functions:
1. V+: Supply voltage input. Connect to the positive supply voltage.
2. CAP+: Positive terminal for the charge pump capacitor. Connect a capacitor between CAP+ and CAP-.
3. CAP-: Negative terminal for the charge pump capacitor.
4. GND: Ground reference for the IC.
5. OUT: Output voltage pin. It provides the inverted or doubled voltage, depending on the configuration.
6. LV: Logic voltage pin. Used to select low voltage mode for efficient operation at lower input voltages.
7. OSC: Oscillator control. Can be used to adjust the oscillator frequency with an external capacitor or synchronize with an external clock.
8. SD: Shutdown control pin. Pulling this pin low disables the device, reducing power consumption.
The LM2662M can be configured to invert input voltage, effectively producing a negative output voltage from a positive input, or to double the input voltage, depending on configuration and external components.

Manufacturer

The LM2662M is manufactured by Texas Instruments (TI), an American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are widely used in electronic devices and systems. The company operates in various sectors, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is one of the largest semiconductor companies globally and is recognized for its innovation in analog and embedded processing technologies.

Application

The LM2662M is a charge-pump voltage converter often used in applications requiring voltage inversion or step-up capabilities. Key application areas include powering negative voltage rails for operational amplifiers, data acquisition systems, and portable devices. It is also used in LCD bias supplies, memory backup systems, and low-power DC-DC conversion in battery-operated devices. Its efficiency and compact size make it suitable for space-constrained designs.

Package

The LM2662M is a switched capacitor voltage converter IC manufactured by Texas Instruments. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is suitable for surface mounting on printed circuit boards.

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