LM2611AMF-NS
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National Semiconductor LM2611AMF-NS

Manufacturer No:
LM2611AMF-NS
Manufacturer:
National Semiconductor
Package:
Bulk
Description:
LM2611 1.4MHZ CUK CONVERTER
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Product Introduction

Overview

The LM2611AMF/NOPB is a 1.4-MHz Cuk converter integrated circuit designed by Texas Instruments. This device is part of the DC-DC switching regulators family and is particularly useful for applications requiring efficient voltage conversion. The LM2611AMF/NOPB operates from a supply voltage range of 2.7V to 14V and can produce a regulated output voltage ranging from -1.23V to -36V. It is packaged in a compact 5-pin SOT-23 package, making it suitable for space-constrained designs.

Key Specifications

Parameter Value
Manufacturer Texas Instruments
Package 5-Pin SOT-23 (SC-74A, SOT-753)
Input Voltage Range 2.7V to 14V
Output Voltage Range -1.23V to -36V
Output Current Up to 1.2A (Grade A), Up to 0.9A (Grade B)
Switching Frequency 1.4 MHz
RDS(ON) 0.5 Ω (Grade A), 0.7 Ω (Grade B)
Output Ripple 1 mVp-p
Shutdown Current <1 µA

Key Features

  • High-efficiency 1.4-MHz Cuk converter topology
  • Low RDS(ON) DMOS FET for reduced power loss
  • Adjustable output voltage using a simple resistor divider
  • Cycle-by-cycle current limiting and internal compensation
  • Low shutdown current (<1 µA) to conserve battery life
  • Compact 5-pin SOT-23 package for space-saving designs

Applications

  • MR Head Bias
  • Digital Camera CCD Bias
  • LCD Bias
  • GaAs FET Bias
  • Positive to Negative Voltage Conversion

Q & A

  1. What is the input voltage range of the LM2611AMF/NOPB?

    The input voltage range is from 2.7V to 14V.

  2. What is the output voltage range of the LM2611AMF/NOPB?

    The output voltage range is from -1.23V to -36V.

  3. What is the switching frequency of the LM2611AMF/NOPB?

    The switching frequency is 1.4 MHz.

  4. How do I set the output voltage of the LM2611AMF/NOPB?

    The output voltage can be set using a simple resistor divider connected to the negative feedback (NFB) pin.

  5. What is the shutdown current of the LM2611AMF/NOPB?

    The shutdown current is less than 1 µA.

  6. What package type is the LM2611AMF/NOPB available in?

    The LM2611AMF/NOPB is available in a 5-pin SOT-23 package.

  7. What are the typical applications of the LM2611AMF/NOPB?

    Typical applications include MR Head Bias, Digital Camera CCD Bias, LCD Bias, GaAs FET Bias, and Positive to Negative Voltage Conversion.

  8. How do I activate the shutdown mode of the LM2611AMF/NOPB?

    The shutdown mode can be activated by grounding the SHDN pin.

  9. What is the RDS(ON) of the LM2611AMF/NOPB?

    The RDS(ON) is 0.5 Ω for Grade A and 0.7 Ω for Grade B.

  10. What is the output current limit of the LM2611AMF/NOPB?

    The output current limit is up to 1.2A for Grade A and up to 0.9A for Grade B.

Product Attributes

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