Datasheets
Application Notes
Other Technical Documents
Part Number(s)
(NSID) | Top View | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3208TL/NOPB
RoHS Status |
MICRO SMD | Full production
Lead Time: 10 weeks
 |
| $1.15 each at 1K+ pcs | reel
of
250
 |
LM3208TLX/NOPB
RoHS Status |
MICRO SMD | Full production
Lead Time: 8 weeks
|
| $1.15 each at 1K+ pcs | reel
of
3000
|
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 LM3208.
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 LM3208 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3208TLEV
| 650mA Miniature, Adjustable, Step-Down DC-DC Converter for RF Power Amplifiers | Full production
|
| $75.00 each | 1 |
| Description:
The LM3208 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell. However, it may be used in many other applications. It steps down an input voltage in the range from 2.7V to 5.5V to an adjustable output voltage of 0.8V to 3.6V. Output voltage is set using a VCON analog input for controlling power levels and efficiency of the RF PA. The LM3208 offers superior performance for mobile phones and similar RF PA applications. Fixed-frequency PWM operation minimizes RF interference. A shutdown function turns the device off and reduces battery consumption to 0.01 microA (typ.). The LM3208 is available in an 8-pin lead free micro SMD package. A high switching frequency (2 MHz) allows use of tiny surface-mount components. Only three small external components are required, an inductor and two ceramic capacitors.
The LM3208TLEV evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board and board layout considerations. For further information on buck converter topology, device electrical characteristics, and component selection, please refer to the LM3208 datasheet.
Features:
- 2 MHz (typ.) PWM Switching Frequency
- Operates from a single Li-Ion cell (2.7V to 5.5V)
- AdjustableOutput Voltage (0.8V to 3.6V)
- Fast Output Voltage Transient (0.8V to 3.4V in 25 micro seconds)
- 650mA Maximum load capability
- High Efficiency (96% Typ at 3.9VIN, 3.4VOUT at 400mA)
- 8-pin micro SMD Package
- Current Overload Protection
- Thermal Overload Protection
Applications:
- Cellular Phones
- Hand-Held Radios
- RF PC Cards
- Battery Powered RF Devices
|
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 LM3208.
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 LM3208 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3208TL | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3208TLX | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
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 LM3208.
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 LM3208 is located at RoHS Status.
