Datasheets
LM5642MHX/NOPB by:

4.5-36V, Current Mode Dual Synchronous Buck Controller with Oscillator Synchronization 28-HTSSOP

Part Details for LM5642MHX/NOPB by Texas Instruments

Results Overview of LM5642MHX/NOPB by Texas Instruments

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LM5642MHX/NOPB Information

LM5642MHX/NOPB by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
DS96174CN/NOPB Rochester Electronics LLC DS96174 - Line Driver, 4 Func, 4 Driver, BIPolar, PDIP16
LM611IM/NOPB Rochester Electronics LLC LM611IM - Operational Amplifier, 7000uV Offset-Max, BIPolar

Price & Stock for LM5642MHX/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM5642MHX/NOPB-ND
DigiKey IC REG CTRLR BUCK 28ETSSOP Min Qty: 2500 Lead time: 6 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 2,500 $2.3056
$2.3056 Buy Now
DISTI # 926-LM5642MHX/NOPB
Mouser Electronics Switching Controllers 4.5-36V Current Mod e Dual Synchronous B A 926-LM5642MH/NOPB RoHS: Compliant 0
  • 2,500 $2.3000
$2.3000 Order Now
LCSC Step-down type 4.5V36V HTSSOP-28-EP DC-DC Converters ROHS 10
  • 1 $7.9342
  • 10 $7.8090
  • 30 $7.7260
  • 100 $7.6431
$7.6431 / $7.9342 Buy Now
Vyrian Other Function Semiconductors 16623
RFQ

Part Details for LM5642MHX/NOPB

LM5642MHX/NOPB CAD Models

LM5642MHX/NOPB Part Data Attributes

LM5642MHX/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM5642MHX/NOPB Texas Instruments 4.5-36V, Current Mode Dual Synchronous Buck Controller with Oscillator Synchronization 28-HTSSOP
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SSOP
Package Description HTSSOP,
Pin Count 28
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature ALSO OPERATES IN ADJUSTABLE MODE FROM 1.3V TO 32.4
Analog IC - Other Type DUAL SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 36 V
Input Voltage-Min 4.5 V
Input Voltage-Nom 5 V
JESD-30 Code R-PDSO-G28
JESD-609 Code e3
Length 9.7 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 2
Number of Terminals 28
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current-Max 20 A
Output Voltage-Max 34 V
Output Voltage-Min 1.236 V
Output Voltage-Nom 5 V
Package Body Material PLASTIC/EPOXY
Package Code HTSSOP
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.1 mm
Surface Mount YES
Switcher Configuration PUSH-PULL
Switching Frequency-Max 250 kHz
Temperature Grade AUTOMOTIVE
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 4.4 mm

Alternate Parts for LM5642MHX/NOPB

This table gives cross-reference parts and alternative options found for LM5642MHX/NOPB. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM5642MHX/NOPB, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
LM5642MHX/NOPB National Semiconductor Corporation Check for Price IC DUAL SWITCHING CONTROLLER, 226 kHz SWITCHING FREQ-MAX, PDSO28, ROHS COMPLIANT, TSSOP-28, Switching Regulator or Controller LM5642MHX/NOPB vs LM5642MHX/NOPB

LM5642MHX/NOPB Related Parts

LM5642MHX/NOPB Frequently Asked Questions (FAQ)

  • A good PCB layout for the LM5642MHX involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.

  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Also, ensure that the input and output capacitors are of high quality and have low ESR. Additionally, the device should be operated within its recommended operating conditions.

  • The LM5642MHX is rated for operation from -40°C to 125°C. However, the device's performance may degrade at higher temperatures, and the maximum junction temperature should not exceed 150°C.

  • Yes, the LM5642MHX is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard and is suitable for use in harsh environments.

  • To troubleshoot issues, start by verifying the input voltage, output voltage, and current consumption. Check for any signs of overheating, and ensure that the device is operated within its recommended operating conditions. Use an oscilloscope to check for any oscillations or noise on the output.

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