Features: Low, 140mV, Dropout at 250mA Load.
Stable with Ceramic Capactor.
Low Noise, with Bypass Capacitor.
Less than 70µA Typical IQ at 250mA.
Virtually Zero IQ (Disabled).
Themal and Short Circuit Protection.
3.3V Output.
For other voltage options, please contact your local NSC sales office.Application Portable Consumer Electronics
Cellular Handsets
Laptop and Palm Computers
PDA's
Digital CamerasPinout
Specifications
| Output Current |
250 mA |
| Output Min |
3.3 Volt |
| Input Min Voltage |
2 Volt |
| Input Max Voltage |
6 Volt |
| Dropout Voltage |
0.14 Volt |
| Adjustable Output |
No |
| Quiescent Current |
0.055 mA |
| PSRR |
61 dB |
| Voltage Noise (rms) |
100 uV |
| On/Off Pin |
Yes |
| Error Flag |
Yes |
| RegType |
LDO |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| Output Voltage |
3.3 Volt |
| Output Max |
3.3 Volt |
| View Using Catalog |
Input Voltage ..................................-0.3 to 6.5V
Output Voltage -0.3 to (VIN + 0.3V) to 6.5V (max)
SD Input Voltage ...........-0.3 to (VIN + 0.3V) to
6.5V (max)
Junction Temperature ............................150°C
Lead/Pad Temp.
MSOP...................................................... 260°C
Storage Temperature ..................-65 to 150°C
Continuous Power Dissipation
Internally Limited (Note 3)
ESD (Note 4)
Human Body Model ......................................2KV
Machine Model ............................................200V
DescriptionThe LP3997 regulator is designed to meet the requirements of portable, battery-powered systems, providing accurate output voltage, low noise, and low quiescent current. The LP3997 provides 3.3V output at up to 250mA load current. The chip architecture is capable of providing output voltages as low as 0.8V. When switched in shutdown mode, the power consumption is virtually zero.
The LP3997 is designed to be stable with space saving ceramic output capacitor as small as 1µF.
The LP3997 also includes an out-of-regulation error flag. When the output is more than 5% below its nominal voltage, the error flag sets to low. If a capacitor is connected to device's delay pin, a delayed power-on reset signal will be generated.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LP3997MM-3.3 |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| LP3997MMX-3.3 |
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-1342: Application Note 1342 LP3994 microSMD Evaluation Board Information |
79 Kbytes |
13-Oct-04 |
Download |
| AN-1416: Application Note 1416 LP3991TL micro SMD Evaluation Board Information |
1212 Kbytes |
11-Mar-07 |
Download |
AN-1416 (Chinese): Application Note 1416 LP3991TL micro SMD Evaluation Board Information
|
210 Kbytes |
|
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
| AN-1377: Application Note 1377 LP3996 / LP5996 Application Board Information |
514 Kbytes |
3-Nov-06 |
Download |
AN-1377 (Chinese): Application Note 1377 LP3996 / LP5996 Application Board Information
|
232 Kbytes |
|
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
LP3997 Data Sheet
