Datasheets
Application Notes
Other Technical Documents
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM22678.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM22678 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM22677EVAL/NOPB
| Evaluation Board for LM22677 & LM22678, 5A SIMPLE SWITCHER regulators with Adj Vout, Adj Freq or Freq Synch & Precision Enable | Full production
Lead Free (RoHS)
|
| $24.00 each | 1 |
 Description:
The LM22677 evaluation board is designed to demonstrate the capabilities of the LM22677 switching regulator. The LM22677 evaluation board is configured to provide an output voltage of 3.3V up to 5A load current with an input voltage range of 4.5V to 42V. Due to the low RDS(ON) of the integrated N-channel MOSFET and maximum duty-cycle limitations, the minimum input voltage of 4.5V will only provide a 3.3V output voltage for load currents up to 500 mA. At 5.5V input voltage 3A of output current is possible while maintaining 3.3V of output voltage. For load currents higher than 3A, in input voltage of 6.5V or higher is required. The typical operating frequency is 500 kHz. The evaluation board is designed to operate at ambient temperatures up to 30 °C.
Features:
- Input Range: 4.5V to 42V
- Output Voltage: 3.3V
- Output Current Range: 0A to 5A
- Frequency of Operation: 500 kHz
- Board Size: 2 X 2 inches
- Package: TO-263 THIN
At low input voltages between 4.5V and 6V, a minimum load of approximately 5 mA may be required to reach a regulated 3.3V output voltage. To aid in the design and evaluation of DC/DC buck converter solutions based on the LM22677 switching regulator, the evaluation board can be re-configured for different output voltages.
Contents:
|
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers
(
CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(
CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
Lead free products are RoHS compliant.
Lead Free product status is available through the search tool located
here
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM22678.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM22678 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM22678QTJ-5.0 | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678QTJ-ADJ | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678QTJE-5.0 | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678QTJE-ADJ | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678TJ-5.0 | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678TJ-ADJ | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678TJE-5.0 | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
|
LM22678TJE-ADJ | ABCD5 | 0 | 5364 | 0 | 0 | 1626984 | 3 | 461661152
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click
here.
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM22678.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM22678 is located at RoHS Status.
LM22674
