LMR62421XSDE/NOPB
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Texas Instruments LMR62421XSDE/NOPB

Manufacturer No:
LMR62421XSDE/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG BST SEPIC ADJ 2.1A 6WSON
Delivery:
Payment:
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Product Introduction

Overview

The LMR62421XSDE/NOPB, produced by Texas Instruments, is a highly efficient and compact step-up voltage regulator. This device is part of the SIMPLE SWITCHER® family and is designed to provide local DC/DC conversion with fast transient response and accurate regulation. It is ideal for boost and SEPIC DC-DC regulation, making it suitable for a variety of applications where space efficiency and high performance are critical.

The regulator operates within an input voltage range of 2.7V to 5.5V and can deliver an output voltage up to 24V with a switch current of up to 2.1A. Its internal switching frequency is set at 1.6 MHz, allowing the use of small surface mount components while achieving efficiencies near 90%.

Key Specifications

Parameter Min Max Units
Input Voltage Range 2.7 5.5 V
Output Voltage 24 V
Switch Current 2.1 A
Switching Frequency 1.6 MHz
Shutdown Iq 80 nA
Current Limiting Cycle-by-Cycle
Thermal Shutdown Temperature 160 °C
Storage Temperature Range -65 150 °C

Key Features

  • Space-efficient design in SOT-23 and WSON packages
  • Input voltage range of 2.7V to 5.5V
  • Output voltage up to 24V
  • Switch current up to 2.1A
  • Internally set switching frequency of 1.6 MHz
  • Low shutdown quiescent current of 80 nA
  • Cycle-by-cycle current limiting for protection
  • Internally compensated for simplicity
  • Support for ceramic output capacitors without compromising transient response
  • Constant frequency peak current mode control for stable operation

Applications

The LMR62421XSDE/NOPB is suitable for various applications requiring efficient and compact DC-DC conversion. These include:

  • Boost and SEPIC DC-DC regulation
  • Portable electronics and battery-powered devices
  • Industrial control systems and automation
  • Medical devices requiring high efficiency and reliability
  • Aerospace and defense applications where size and efficiency are critical

Q & A

  1. What is the input voltage range of the LMR62421XSDE/NOPB?

    The input voltage range is from 2.7V to 5.5V.

  2. What is the maximum output voltage that the LMR62421XSDE/NOPB can deliver?

    The maximum output voltage is up to 24V.

  3. What is the switching frequency of the LMR62421XSDE/NOPB?

    The switching frequency is internally set at 1.6 MHz.

  4. How does the LMR62421XSDE/NOPB protect against overcurrent?

    The device uses cycle-by-cycle current limiting to protect the internal NMOS switch.

  5. What is the shutdown quiescent current of the LMR62421XSDE/NOPB?

    The shutdown quiescent current is typically 80 nA.

  6. Can the LMR62421XSDE/NOPB be used with ceramic output capacitors?
  7. What is the thermal shutdown temperature of the LMR62421XSDE/NOPB?

    The thermal shutdown temperature is 160°C.

  8. How do I set the output voltage of the LMR62421XSDE/NOPB?

    The output voltage is set by connecting the FB pin to an external resistor divider.

  9. What is the purpose of the Enable (EN) pin on the LMR62421XSDE/NOPB?

    The Enable pin controls the shutdown mode; a logic low voltage disables the device.

  10. What type of control mode does the LMR62421XSDE/NOPB use?

    The device uses constant frequency peak current mode control.

Product Attributes

Function:Step-Up, Step-Up/Step-Down
Output Configuration:Positive
Topology:Boost, SEPIC
Output Type:Adjustable
Number of Outputs:1
Voltage - Input (Min):2.7V
Voltage - Input (Max):5.5V
Voltage - Output (Min/Fixed):2.7V
Voltage - Output (Max):24V
Current - Output:2.1A (Switch)
Frequency - Switching:1.6MHz
Synchronous Rectifier:No
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:6-WDFN Exposed Pad
Supplier Device Package:6-WSON (3x3)
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Similar Products

Part Number LMR62421XSDE/NOPB LMR62421XSDX/NOPB LMR62421XSD/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Function Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down Step-Up, Step-Up/Step-Down
Output Configuration Positive Positive Positive
Topology Boost, SEPIC Boost, SEPIC Boost, SEPIC
Output Type Adjustable Adjustable Adjustable
Number of Outputs 1 1 1
Voltage - Input (Min) 2.7V 2.7V 2.7V
Voltage - Input (Max) 5.5V 5.5V 5.5V
Voltage - Output (Min/Fixed) 2.7V 2.7V 2.7V
Voltage - Output (Max) 24V 24V 24V
Current - Output 2.1A (Switch) 2.1A (Switch) 2.1A (Switch)
Frequency - Switching 1.6MHz 1.6MHz 1.6MHz
Synchronous Rectifier No No No
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 6-WDFN Exposed Pad 6-WDFN Exposed Pad 6-WDFN Exposed Pad
Supplier Device Package 6-WSON (3x3) 6-WSON (3x3) 6-WSON (3x3)

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