Pinout
Specifications| Output Current | 150 mA |
| Output Min | 1.8, 2.9, 1.5, 3.1 Volt |
| Input Min Voltage | 2.5 Volt |
| Input Max Voltage | 6 Volt |
| Dropout Voltage | 0.06 Volt |
| Adjustable Output | No |
| Quiescent Current | 0.08 mA |
| On/Off Pin | Yes |
| Error Flag | No |
| RegType | LDO |
| Temperature Min | -40 deg C |
| Temperature Max | 125 deg C |
| Output Voltage | 1.8, 2.9, 1.5, 3.1 Volt |
| Output Max | 1.8, 2.9, 1.5, 3.1 Volt |
| AEC Q-100 Automotive Grade | 0 |
| View Using Catalog |
DescriptionThe LP3984 is designed for portable and wireless applications with demanding performance and space requirements.
The LP3984's performance is optimized for battery powered systems to deliver extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.
Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.
The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA from a 2.5V to 6V input. The LP3984 consumes less than 1.2µA in disable mode and has fast turn-on time less than 20µs.
The LP3984 is available in a 4 bump micro SMD and 5 pin SOT-23 package. Performance is specified for -40°C to +125°C temperature range and is available in 1.5V, 1.8V, 2.0V, 2.9V and 3.1V output voltages. For other output voltage options from 1.5V to 3.5V, please contact National Semiconductor sales office.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LP3984I-1.5 MWC |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBP-1.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBP-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBP-2.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBP-3.1 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBPX-1.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBPX-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBPX-2.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IBPX-3.1 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMF-1.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMF-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMF-2.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMF-3.1 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMFX-1.5 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMFX-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMFX-2.0 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984IMFX-3.1 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITP-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITP-2.9 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITP-3.1 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITPX-1.8 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITPX-2.9 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3984ITPX-3.1 |
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 |
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LP3984 Data Sheet
