LM2665M6X

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LM2665M6X

IC REG CHARGE PUMP 40MA SOT23-6

  • Manufacturer
  • Mfr. Part #LM2665M6X
  • Package SOT-23 (DBV)-6
  • Datasheet
  • In Stock6779

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Specifications

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

Overview

Description

The LM2665M6X is a charge pump voltage converter designed by Texas Instruments. It is primarily used to invert or double input voltages, making it ideal for applications that require a negative supply voltage in systems with a single positive supply. The device operates on an input voltage range typically between 2.5V and 5.5V and can provide a regulated output voltage, usually up to 200 mA of output current.
This IC is housed in a small SOT-23 package, making it suitable for space-constrained applications such as portable devices and other battery-powered equipment. It features high efficiency, low operating current, and low shutdown current, contributing to extended battery life in portable applications. The LM2665M6X also incorporates built-in protection features, including short-circuit protection and thermal shutdown, to enhance reliability and safety.
Typical applications of the LM2665M6X include LCD bias supplies, operational amplifier power supplies, and other electronics requiring a negative voltage rail. Its simplicity and small footprint make it a popular choice for designers looking to implement efficient voltage inversion or doubling solutions.

Features

The LM2665M6X is a switched capacitor voltage converter IC designed to efficiently invert a positive input voltage to a negative output voltage. Key features of the LM2665M6X include:
1. Voltage Range: It operates within an input voltage range of 1.8V to 5.5V.
2. Output Voltage: It provides an output voltage that is the negative of the input, making it useful for applications requiring a negative supply voltage.
3. Output Current: Capable of delivering up to 100 mA output current.
4. Efficiency: High conversion efficiency typically over 90% under optimal conditions.
5. Low Quiescent Current: Consumes minimal power in no-load conditions, helping to extend battery life in portable applications.
6. Compact Package: Available in a small SOT-23 package, which is ideal for space-constrained designs.
7. No Inductors Needed: The switched capacitor architecture eliminates the need for inductors, simplifying design and reducing BOM cost.
8. Thermal Protection: Built-in thermal shutdown protects the IC from overheating.
9. ESD Protection: Ensures robustness against electrostatic discharge.
These features make the LM2665M6X well-suited for portable devices, battery-powered applications, and systems requiring a compact and efficient negative voltage supply.

Package

The LM2665M6X is a switched capacitor voltage converter available in a SOT-23-6 package. This compact surface-mount package is designed for applications requiring minimal space.

Pinout

The LM2665M6X is a charge pump voltage converter integrated circuit. It typically comes in a SOT-23-6 package, which means it has 6 pins. The main function of the LM2665M6X is to invert the input voltage, effectively generating a negative voltage from a positive input.
Here is a brief overview of the pin functions:
1. CAP+ (Pin 1): Positive terminal for the external flying capacitor.
2. GND (Pin 2): Ground connection.
3. CAP- (Pin 3): Negative terminal for the external flying capacitor.
4. VOUT (Pin 4): Output pin for the inverted voltage.
5. VIN (Pin 5): Input voltage pin.
6. SHDN (Pin 6): Shutdown pin; pulling it low disables the device and reduces power consumption.
This charge pump is often used in applications where a negative voltage rail is needed from a positive voltage source, such as in op-amp biasing or dual-supply systems.

Manufacturer

The LM2665M6X is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a range of electronic components, including integrated circuits. They serve various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its innovation in analog and embedded processing products, and it is one of the leading companies in the semiconductor industry.

Application

The LM2665M6X is a switched capacitor voltage converter used primarily for applications requiring a voltage inversion. It is commonly used in battery-powered devices, portable electronics, and communications equipment. Its compact design and efficiency make it suitable for applications like powering op-amps, sensor circuits, and low-power microcontroller systems where a negative voltage is needed from a positive supply.

Equivalent

The LM2665M6X is a switched capacitor voltage converter. Equivalent products include the MAX660 by Maxim Integrated, the LTC1044 by Analog Devices, and the TC7660 by Microchip Technology. These chips perform similar functions, offering voltage inversion or doubling, and are designed for applications requiring low power and small form factors. Always compare specifications like voltage range, current capacity, and package type to ensure compatibility.

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