Features: · Miniature 5-I/O micro SMD package
· Stable with ceramic and high quality tantalum output capacitors
· Logic controlled enable
·Thermal Shutdown and short-circuit current limitApplication` CDMA cellular handsets
` Wideband CDMA cellular handsets
` GSM cellular handsets
` Portable information appliances
` P/DSP Power Supplies
` Digital Cameras
` SRAM BackupSpecifications
| Output Current |
150 mA |
| Output Min |
2.85, 2.6, 2.8 Volt |
| Input Min Voltage |
3.05, 3, 2.8 Volt |
| Input Max Voltage |
6, 6.5 Volt |
| Dropout Voltage |
0.06 Volt |
| Adjustable Output |
No |
| Quiescent Current |
0.085 mA |
| On/Off Pin |
Yes |
| Error Flag |
No |
| RegType |
LDO |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| Output Voltage |
2.85, 2.6, 2.8 Volt |
| Output Max |
2.85, 2.6, 2.8 Volt |
| PowerWise |
Yes |
| View Using Catalog |
VIN ..................................−0.3 to 6.5V
VEN, VMODE..............................−0.3 to 6.5V
VOUT .........................−0.3V to(V IN+0.3V) 6.5
Storage Temperature ....................−65°C to +150°C
ESD (Note 4)
Human Body Model..............................2KV
Machine Model ...............................200V
Maximum Power Dissipation (Note 3)
JA (micro SMD small bump) ......................255°C/WDescriptionThe LP3987 is a 150mA fixed output voltage regulator with very low dropout voltage designed specially to meet requirements of battery-powered applications. The additional sleep MODE feature will reduce current consumption during standby operation to prolong the usage of battery.
Dropout Voltage: 100mV maximum dropout with 150mA load.
Shutdown: Less than 1µA quiescent current.
Sleep Mode: Typically 14µA quiescent current during sleep MODE to reduce battery consumption.
Enhanced Stability: The LP3987 is stable with minimum 1µF±20% low ESR ceramic output capacitor as low as 5m and high quality tantalum capacitors.
The LP3987 is available in a thin 5 Bump micro SMD package. Performance is specified for −40°C to 125°C.
This device is available with output voltage options of 2.5V, 2.6V, 2.8V, 2.85V & 3.0V. For other voltage options, please contact National Semiconductor Corporation.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LP3987ITL-2.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITL-2.6 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITL-2.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITL-2.85 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITL-3.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITLX-2.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITLX-2.6 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITLX-2.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITLX-2.85 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3987ITLX-3.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
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.
More Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-1219: Application Note 1219 LP3985 MicroSMD‐5 Evaluation Board Instruction |
36 Kbytes |
10-May-04 |
Download |
| AN-1228: Application Note 1228 LP3986 microSMD Evaluation Board Instruction |
29 Kbytes |
14-May-04 |
Download |
| AN-1223: Application Note 1228 LP3986 microSMD Evaluation Board Instruction |
29 Kbytes |
14-May-04 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
The LP3987 is a 150mA fixed output voltage regulator with very low dropout voltage designed specially to meet requirements of battery-powered applications. The additional sleep MODE feature will reduce current consumption during standby operation to prolong the usage of battery. Dropout Voltage: 100mV maximum dropout with 150mA load.
Shutdown: Less than 1A quiescent current.
Sleep Mode: Typically 14A quiescent current during sleep MODE to reduce battery consumption.
Enhanced Stability: The LP3987 is stable with minimum 1F±20% low ESR ceramic output capacitor as low as 5m and high quality tantalum capacitors.
The LP3987 is available in thin and thick 5 Bump micro SMD package. Performance is specified for −40°C to 125°C.
This device is available with output voltage options of 2.6V, 2.8V, & 2.85V. For other voltage options, please contact National Semiconductor Corporation.
LP3987 Data Sheet
