Datasheets
Application Notes
Other Technical Documents
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM5642EVAL-KIT/NOPB
| High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization | Full production
Lead Free (RoHS)
|
| $180.00 each | 1 |
 High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization
Features:
- Two synchronous buck regulators
- 180° out of phase operation
- Synchronizable switching frequency from 150 kHz to 250 kHz
- 4.5 V to 36 V input range
- 50µA shutdown current
- Adjustable output from 1.3 V to 90% of Vin
- 0.04% (typical) line and load regulation error
- Current mode control with or without a sense resistor
- Independent enable/soft-start pins allow simple sequential startup configuration
- Configurable for single output parallel operation.
- Adjustable cycle-by-cycle current limit
- Input under-voltage lockout
- Output over-voltage latch protection
- Output under-voltage protection with delay
- Thermal shutdown
- Self discharge of output capacitors when the regulator is OFF
- TSSOP package
Applications:
- Embedded Computer Systems
- Telecom Systems
- Set-Top Boxes
- WebPAD
- Point Of Load Power Architectures
Contents:
- A fully assembled LM5642 evaluation board
- LM5642 evaluation board appnote
- LM5642 datasheet
|
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 LM5642.
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 LM5642 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM5642MH | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
|
LM5642MHX | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
|
LM5642MTC | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
|
LM5642MTCX | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
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 LM5642.
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 LM5642 is located at RoHS Status.
LM2642
