Datasheets
Application Notes
Other Technical Documents
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3668SD-2833EV/NOPB
| LM3668SD-2833 Evaluation Board | Full production
Lead Free (RoHS)
|
| $75.00 each | 1 |
| Description:
The LM3668 is a synchronous buck-boost DC-DC converter optimized for powering low voltage circuits from a Li-Ion battery and input voltage rails between 2.5V and 5.5V. It has the capability to support up to 1A output current over the output voltage range. The LM3668 regulates the output voltage over the complete input voltage range by automatically switching between buck or boost modes depending on the input voltage.
The LM3668 evaluation board is a working demonstration of a synchronous buck-boost Dc-Dc converter. The application note contains information about the evaluation board. For more details and electrical characteristics about the converter operation, please refer to the datasheet.
Features:
- 45 µ A typical quiescent current
- For 2.8V/3.3V and 3.0/3.4V versions:
--1A maximum load current for VIN = 2.8V to 5.5V
--800mA maximum load current for VIN = 2.7V
--600mA maximum load current for VIN = 2.5V
- For 4.5/5V
--1A maximum load current for VIN = 3.9V to 5.5V
--800mA maximum load current for VIN = 3.4V to 3.8V
--700mA maximum load current for VIN = 3.0V to 3.3V
--600mA maximum load current for VIN = 2.7V to 2.9V
- 2.2MHz PWM fixed switching frequency (typ.)
- Automatic PFM-PWM Mode or Forced PWM Mode
- Wide Input Voltage Range: 2.5V to 5.5V
- Internal synchronous rectification for high efficiency
- Internal soft start: 600 µ s Maximum start-up time after VIN settled.
- 0.01 µ A typical shutdown current
- Current overload and Thermal shutdown protection
- Frequency Sync Pin: 1.6MHz to 2.7MHz
Applications:
- Handset Peripherals
- MP3 players
- Pre-regulation for linear regulators
- PDAs
- Portable Hard Disk Drives
- WiMax Modems
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3668SD-3034EV
| LM3668SD-3034 Evaluation Board | Full production
|
| $75.00 each | 1 |
| Description:
The LM3668 is a synchronous buck-boost DC-DC converter optimized for powering low voltage circuits from a Li-Ion battery and input voltage rails between 2.5V and 5.5V. It has the capability to support up to 1A output current over the output voltage range. The LM3668 regulates the output voltage over the complete input voltage range by automatically switching between buck or boost modes depending on the input voltage.
The LM3668 evaluation board is a working demonstration of a synchronous buck-boost Dc-Dc converter. The application note contains information about the evaluation board. For more details and electrical characteristics about the converter operation, please refer to the datasheet.
Features:
- 45 µ A typical quiescent current
- For 2.8V/3.3V and 3.0/3.4V versions:
--1A maximum load current for VIN = 2.8V to 5.5V
--800mA maximum load current for VIN = 2.7V
--600mA maximum load current for VIN = 2.5V
- For 4.5/5V
--1A maximum load current for VIIN = 3.9V to 5.5V
--800mA maximum load current for VIN = 3.4V to 3.8V
--700mA maximum load current for VIN = 3.0V to 3.3V
--600mA maximum load current for VIN = 2.7V to 2.9V
- 2.2MHz PWM fixed switching frequency (typ.)
- Automatic PFM-PWM Mode or Forced PWM Mode
- Wide Input Voltage Range: 2.5V to 5.5V
- Internal synchronous rectification for high efficiency
- Internal soft start: 600 µ s Maximum start-up time after VIN settled.
- 0.01 µ A typical shutdown current
- Current overload and Thermal shutdown protection
- Frequency Sync Pin: 1.6MHz to 2.7MHz
Applications:
- Handset Peripherals
- MP3 players
- Pre-regulation for linear regulators
- PDAs
- Portable Hard Disk Drives
- WiMax Modems
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3668SD-4550EV
| LM3668SD-4550 Evaluation Board | Full production
|
| $75.00 each | 1 |
| Description:
The LM3668 is a synchronous buck-boost DC-DC converter optimized for powering low voltage circuits from a Li-Ion battery and input voltage rails between 2.5V and 5.5V. It has the capability to support up to 1A output current over the output voltage range. The LM3668 regulates the output voltage over the complete input voltage range by automatically switching between buck or boost modes depending on the input voltage.
The LM3668 evaluation board is a working demonstration of a synchronous buck-boost Dc-Dc converter. The application note contains information about the evaluation board. For more details and electrical characteristics about the converter operation, please refer to the datasheet.
Features:
- 45 µ A typical quiescent current
- For 2.8V/3.3V and 3.0/3.4V versions:
--1A maximum load current for VIN = 2.8V to 5.5V
--800mA maximum load current for VIN = 2.7V
--600mA maximum load current for VIN = 2.5V
- For 4.5/5V
--1A maximum load current for VIIN = 3.9V to 5.5V
--800mA maximum load current for VIN = 3.4V to 3.8V
--700mA maximum load current for VIN = 3.0V to 3.3V
--600mA maximum load current for VIN = 2.7V to 2.9V
- 2.2MHz PWM fixed switching frequency (typ.)
- Automatic PFM-PWM Mode or Forced PWM Mode
- Wide Input Voltage Range: 2.5V to 5.5V
- Internal synchronous rectification for high efficiency
- Internal soft start: 600 µ s Maximum start-up time after VIN settled.
- 0.01 µ A typical shutdown current
- Current overload and Thermal shutdown protection
- Frequency Sync Pin: 1.6MHz to 2.7MHz
Applications:
- Handset Peripherals
- MP3 players
- Pre-regulation for linear regulators
- PDAs
- Portable Hard Disk Drives
- WiMax Modems
|
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 LM3668.
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 LM3668 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3668SD-2833 | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3668SD-3034 | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3668SD-4550 | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3668SDX-2833 | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3668SDX-3034 | CMOS7 | 0 | 21301 | 0 | 0 | 1584000 | 3 | 449464325
|
|
LM3668SDX-4550 | 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 LM3668.
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 LM3668 is located at RoHS Status.
