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Features
| | 2.0% output accuracy (25°C) |
| | Low dropout voltage: 250 mV @ 500mA (typ, 5V out) |
| | Wide input voltage range (2.7V to 10V) |
| | Precision (trimmed) bandgap reference |
| | Guaranteed specs for -40°C to +125°C |
| | 1µA off-state quiescent current |
| | Thermal overload protection |
| | Foldback current limiting |
| | T0-252, SOT-223 and 6-Lead LLP packages |
| | Enable pin (LP38693) |
Description The LP38691/3 low dropout CMOS linear regulators provide tight output tolerance (2.0% typical), extremely low dropout voltage
(250 mV @ 500mA load current, VOUT = 5V), and excellent AC performance utilizing ultra low ESR ceramic output capacitors.
The low thermal resistance of the LLP, SOT-223 and TO-252 packages allow the full operating current to be used even in high
ambient temperature environments.
The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current
to remain below 100 µA regardless of load current, input voltage, or operating temperature.
Dropout Voltage: 250 mV (typ) @ 500mA (typ. 5V out).
Ground Pin Current: 55 µA (typ) at full load.
Precision Output Voltage: 2.0% (25°C) accuracy.
Applications
| | Hard Disk Drives |
| | Notebook Computers |
| | Battery Powered Devices |
| | Portable Instrumentation |
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| Paramaters / Values | LP38693 | LP38501-ADJ | LP38503-ADJ | LP38691 | LP38693-ADJ | LP38853 |
| Output Current | 500 mA
| 3000 mA
| 3000 mA
| 500 mA
| 500 mA
| 3000 mA
|
| Output Min | 1.8, 2.5, 3.3, 5 Volt
| 0.6 Volt
| 0.6 Volt
| 1.8, 2.5, 3.3, 5 Volt
| 1.25 Volt
| 0.8 Volt
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| Input Min Voltage | 2.93, 2.7, 3.73, 5.43 Volt
| 2.7 Volt
| 2.7 Volt
| 2.93, 2.7, 3.73, 5.43 Volt
| 2.7 Volt
| |
| Input Max Voltage | 10 Volt
| 5.5 Volt
| 5.5 Volt
| 10 Volt
| 10 Volt
| 5.5 Volt
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| Dropout Voltage | Undefined, 0.25, 0.33, 0.43 Volt
| 0.42 Volt
| 0.42 Volt
| Undefined, 0.25, 0.33, 0.43 Volt
| 0.25 Volt
| 0.240 Volt
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| Adjustable Output | No
| Yes
| Yes
| No
| Yes
| Yes
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| Quiescent Current | 0.055 mA
| 2 mA
| 2 mA
| 0.055 mA
| 0.055 mA
| 10 mA
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| On/Off Pin | Yes
| Yes
| No
| No
| Yes
| Yes
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| Error Flag | No
| No
| No
| No
| No
| No
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| RegType | LDO
| LDO
| LDO
| LDO
| LDO
| LDO
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| Temperature Min | -40 deg C
| -40 deg C
| -40 deg C
| -40 deg C
| -40 deg C
| -40 deg C
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| Temperature Max | 125 deg C
| 125 deg C
| 125 deg C
| 125 deg C
| 125 deg C
| 125 deg C
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| Output Voltage | 1.8, 2.5, 3.3, 5 Volt
| | | 1.8, 2.5, 3.3, 5 Volt
| Undefined Volt
| |
| Output Max | 1.8, 2.5, 3.3, 5 Volt
| 5 Volt
| 5 Volt
| 1.8, 2.5, 3.3, 5 Volt
| 9 Volt
| 1.8 Volt
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| PowerWise | Yes
| | | Yes
| Yes
| Yes
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Datasheet
Featured Application Notes
More Application Notes
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LP38693MP-1.8 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693MP-2.5 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693MP-3.3 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693MP-5.0 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
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LP38693MPX-1.8 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
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LP38693MPX-2.5 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693MPX-3.3 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693MPX-5.0 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SD-1.8 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SD-2.5 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SD-3.3 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SD-5.0 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SDX-1.8 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SDX-2.5 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SDX-3.3 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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LP38693SDX-5.0 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
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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.
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