LM2665M6

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LM2665M6

IC REG CHARGE PUMP 40MA SOT23-6

  • Производитель
  • Мфр. Часть #LM2665M6
  • Пакет SOT-23 (DBV)-6
  • Лист данных
  • В наличии5136

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Спецификации

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Not For New Designs
Function Ratiometric
OutputConfiguration Positive
Topology Charge Pump
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 2.5V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 2Vin, Vin/2
Current-Output 40mA
Frequency-Switching 80kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TJ)
MountingType Surface Mount
Package/Case SOT-23-6

Обзор

Description

The LM2665M6 is a switched-capacitor voltage converter integrated circuit (IC) designed by Texas Instruments. It is primarily used to invert positive voltage to negative voltage, making it ideal for applications requiring dual power supply rails. The device operates using a charge pump mechanism, which transfers charge between capacitors to create the desired voltage output without the need for inductors.
Housed in a small SOT-23 package, the LM2665M6 is well-suited for compact, portable electronic applications. It typically operates at a frequency of around 150 kHz, contributing to reduced ripple and noise in the output voltage. The IC handles a wide input voltage range from 1.5V to 5.5V, and it can deliver output currents up to 100 mA.
Key features include low quiescent current, which enhances battery life in portable devices, and thermal shutdown protection, ensuring the IC operates safely under adverse conditions. The LM2665M6 is commonly used in applications such as LCD contrast biasing, operational amplifier power supplies, and other systems requiring negative voltage supply from a single positive voltage input.

Features

The LM2665M6 is a charge pump voltage converter IC designed by Texas Instruments. It primarily functions as a switched capacitor voltage inverter, capable of converting a positive input voltage to a negative output voltage. Key features include:
1. Input Voltage Range: The device operates within a 1.5V to 5.5V input voltage range.
2. Output Voltage: It typically produces an output voltage equal to the negative of the input voltage.
3. Output Current: It can deliver a typical output current of up to 100mA.
4. Efficiency: With a high efficiency of up to 90%, it minimizes power loss.
5. Low Quiescent Current: It has a low quiescent current of 300µA, making it suitable for battery-powered applications.
6. Compact Package: The device is housed in a small SOT-23-6 package, making it ideal for space-constrained designs.
7. Simple Implementation: Requires only two external capacitors, simplifying the circuit design.
8. Thermal Protection: Includes built-in thermal shutdown for device protection.
Overall, the LM2665M6 is well-suited for applications requiring compact voltage inversion with minimal external components.

Package

The LM2665M6 is typically housed in a SOT-23-6 package. This is a small outline transistor package with six leads, commonly used for surface-mount applications due to its compact size and efficient thermal performance.

Pinout

The LM2665M6 is a charge pump voltage converter IC designed to invert input voltages. It comes in a 6-pin surface-mount SOT-23 package. Here is a brief overview of its pin functions:
1. V+ (Pin 1): Positive input voltage. This is the supply voltage pin where the input voltage is applied.
2. GND (Pin 2): Ground. This pin is connected to the ground of the circuit.
3. C1+ (Pin 3): Positive terminal of the external flying capacitor. The flying capacitor is essential for the charge pump operation.
4. C1- (Pin 4): Negative terminal of the external flying capacitor. This pin is connected to the other side of the flying capacitor.
5. VOUT (Pin 5): Output voltage. This pin provides the inverted output voltage.
6. OSC (Pin 6): Oscillator control. If connected to V+, it operates in a normal mode; if connected to ground, it operates in a low power mode.
The LM2665M6 is commonly used in applications where negative voltage needs to be generated from a positive supply, such as in dual-supply operational amplifier circuits.

Manufacturer

The LM2665M6 is manufactured by Texas Instruments (TI), a global semiconductor company. Texas Instruments designs and produces a wide range of semiconductor products, including analog and embedded processing chips. The company is known for its innovation in technology and focuses on developing products that help improve performance and efficiency across various industries, including automotive, industrial, personal electronics, and communications equipment.

Application

The LM2665M6 is a charge pump voltage converter primarily used in applications requiring voltage inversion from positive to negative, such as LCD bias supplies, operational amplifier power supplies, or generating a negative rail in portable devices. Its compact size and efficient design make it suitable for battery-powered devices like mobile phones, digital cameras, and handheld instruments. Additionally, it can be used in other low-power electronics needing a negative supply voltage.

Equivalent

The LM2665M6 is a charge pump voltage converter. Equivalent products include:
1. LTC1044 - Linear Technology (now Analog Devices)
2. MAX660 - Maxim Integrated (now part of Analog Devices)
3. TC1044 - Microchip Technology
These alternatives offer similar voltage conversion capabilities and functionalities. Always verify specific electrical characteristics and pin compatibility when considering replacements.

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