-
Part Symbol
-
Footprint
-
3D Model
Available Download Formats
By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy
4.5-36V, Current Mode Dual Synchronous Buck Controller with Oscillator Synchronization 28-HTSSOP
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
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.
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 |
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 |
|
$2.3056 | 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 |
|
$2.3000 | Order Now |
|
LCSC | Step-down type 4.5V36V HTSSOP-28-EP DC-DC Converters ROHS | 10 |
|
$7.6431 / $7.9342 | Buy Now |
|
Vyrian | Other Function Semiconductors | 16623 |
|
RFQ |
By downloading CAD models, you agree to our Terms & Conditions and Privacy Policy
|
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 |
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 |
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.