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LM22677TJ-5.0/NOPB ACTIVE

SIMPLE SWITCHER® 4.5V to 42V, 5A Step-Down DC/DC Switching Reg. with Frequency Synchronization

ACTIVE custom-reels CUSTOM Custom reel may be available
Inventory:

Pricing

Qty Price (USD)
1-99 4.453
100-249 3.63
250-999 2.853
1,000+ 2.42

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins TO-263 (NDR) | 7
Package qty | Carrier: 1,000 | LARGE T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM22677

  • Wide Input Voltage Range: 4.5 V to 42 V
  • Internally Compensated Voltage Mode Control
  • Stable With Low ESR Ceramic Capacitors
  • 100-mΩ N-Channel MOSFET
  • Output Voltage Options:
    • -ADJ (Outputs as Low as 1.285 V)
    • -5.0 (Output Fixed to 5 V)
  • ±1.5% Feedback Reference Accuracy
  • 500-kHz Default Switching Frequency
  • Adjustable Switching Frequency and
    Synchronization
  • –40°C to +125°C Operating Junction Temperature
    Range
  • Precision Enable Input
  • Integrated Boot-Strap Diode
  • Integrated Soft-Start
  • Fully WEBENCH® Enabled
  • LM22677-Q1 is an Automotive-Grade Product
    that is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • NDR (Exposed Pad)

Description for the LM22677

The LM22677 switching regulator provides all of the functions necessary to implement an efficient high-voltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5-V output and adjustable output voltage options are available. The default switching frequency is set at 500 kHz, thus allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typical). The LM22677 also has built-in thermal shutdown, and current limiting to protect against accidental overloads.

The LM22677 device is a member of Texas Instruments’ SIMPLE SWITCHER family. The SIMPLE SWITCHER® concept provides for an easy-to-use complete design using a minimum number of external components and the TI WEBENCH design tool. TI's WEBENCH tool includes features such as external component calculation, electrical simulation, thermal simulation, and Build-It boards for easy design-in.

Inventory:

Pricing

Qty Price (USD)
1-99 4.453
100-249 3.63
250-999 2.853
1,000+ 2.42

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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