Features: Ultra low dropout voltage
Guaranteed 500 mA continuous output current
Very low output noise with external capacitor
SO-8, Mini SO-8, 8 Lead LLP surface mount packages
<0.8 A quiescent current when shutdown
Low ground pin current at all loads
0.75% output voltage accuracy ("A" grade)
High peak current capability (800 mA typical)
Wide supply voltage range (16V max)
Overtemperature/overcurrent protection
−40°C to +125°C junction temperature rangeApplicationNotebook/Desktop PC
PDA/Palmtop Computer
Wireless Communication Terminals
SMPS Post-RegulatorPinout
Specifications
| Output Current |
500 mA |
| Output Min |
1.8 Volt |
| Input Min Voltage |
2.1 Volt |
| Input Max Voltage |
16 Volt |
| Dropout Voltage |
0.31 Volt |
| Adjustable Output |
No |
| Quiescent Current |
0.11 mA |
| On/Off Pin |
Yes |
| Error Flag |
Yes |
| RegType |
LDO |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| Output Voltage |
1.8 Volt |
| Output Max |
1.8 Volt |
| View Using Catalog |
DescriptionThe LP2989LV is a 500 mA fixed-output voltage regulator designed to provide high performance and low noise in applications requiring output voltages < 2V.
Output noise can be reduced to 18µV (typical) by connecting an external 10 nF capacitor to the bypass pin.
Using an optimized VIP™ (Vertically Integrated PNP) process, the LP2989LV delivers superior performance:
Ground Pin Current: Typically 3 mA @ 500 mA load, and 110 µA @ 100 µA load.
Sleep Mode: The LP2989LV draws less than 0.8 µA quiescent current when shutdown pin is pulled low.
Error Flag: The built-in error flag goes low when the output drops approximately 5% below nominal.
Precision Output: Guaranteed output voltage accuracy is 0.75% ("A" grade) and 1.25% (standard grade) at room temperature.
For output voltages >= 2V, see LP2989 datasheet.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LP2989AILD-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989AILDX-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989AIM-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989AIMM-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989AIMX-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989ILD-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989ILDX-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989IM-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989IMM-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989IMMX-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
| LP2989IMX-1.8 |
VIP1+ |
0 |
21850 |
0 |
0 |
2515000 |
2 |
713638117 |
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.
LP2989LV Data Sheet
