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PDF LA1117 Data sheet ( Hoja de datos )
| Número de pieza | LA1117 | |
| Descripción | 1.0A Low Dropout Positive Regulators | |
| Fabricantes | Lite-On | |
| Logotipo |  |
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LA1117
1.0A Low Dropout Positive Regulators
General Description
The LA1117 is a low dropout three terminal regulator that features a low quiescent current, low input, output
and dropout voltages, as well as over temperature shutdown. The output voltage of the LA1117 is set at the
factory and trimmed to ±1%. The LA1117 is stable with a ceramic output capacitor of 4.7uF.
This family of regulators can provide either a stand-alone power supply solution or act as a post regulator for
switch mode power supplies. They are particularly well suited for applications requiring low input and output
voltage.
Features
• Min. 1.1A Output Current Limiter
• 1.4V Maximum Full load Dropout Voltage
• 3-Terminal Adjustable or Fixed , 1.5V, 1.8V, 2.5V, 3.3V and 5V Output Voltage
• Fast Load Transient Response
• Built-in Over Current Protection
• Built-in Over Temperature Protection
• Good Noise Rejection Capability
• Stable with Ceramic Cap of 4.7uF
• Package : SOT223-3L, SOT89-3L, TO252-2L
• RoHS Compliant & Halogen Free
Applications
• PC Mother Board Applications
• LCD TV/ Monitors
• Communication Devices
Please be aware that an Important Notice concerning availability, disclaimers, and use in critical
applications of LSC products is at the end of this document.
LA1117 Rev. 04
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LA1117
1.0A Low Dropout Positive Regulators
Absolute Maximum Ratings (at TA=25°C)
Operate over the “Absolute Maximum Ratings” may cause permanent damage to the device. Exposure to
such conditions for extended time may still affect the reliability of the device.
Parameter
Value
DC Supply Voltage
Operation Junction Temperature Range (note1)
-0.3-18V
-40~150°C
Storage Temperature Range
-65°C to 150°C
Lead Temperature
ESD Withstand Voltage (IEC 6100-4-2):
- Human Body Model (HBM), Model = 2
- Machine Model (MM) Model = B
Thermal Resistance
(Junction to Case) (θJC)
SOT223-3L
SOT89-3L
TO252-2L
260°C, to 10 sec
2000V
200V
31 °C/W
46 °C/W
30 °C/W
Thermal Resistance
(Junction to Ambient) (θJA)
SOT223-3L
SOT89-3L
TO252-2L
125 °C/W
180 °C/W
140 °C/W
Power Dissipation
SOT223-3L
SOT89-3L
800 mW
550 mW
Moisture Sensitivity
TO252-2L
1000 mW
Please Refer The Moisture Sensitivity
Label on the IC packing bag material
for more detail.
Note 1 : Maximum Junction Temperature is the temperature limit of this device. Over this limit, the IC may be damaged permanently.
Operation Junction Temperature Range is the range the device intended to be functional, but specific performance is not guaranteed.
For guaranteed specifications and the test conditions, please refer the Electrical Characteristics
Recommended Operating Conditions
Characteristics
Symbol
Min
Max
Operating Junction Temperature Range
TJ -40 125 (Note2)
Note 2 : If the IC experienced OTP, then the temperature may need to drop to <125 °C to let the IC recover.
Unit
°C
LA1117 Rev. 04
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Typical Characteristics (Contd.)
LA1117
1.0A Low Dropout Positive Regulators
Figure 7. Adj Current VS Input Voltage
Figure 8. Adj Current VS Junction Tmperature
Figure 9. Power Supply Rejection Ratio
LA1117 Rev. 04
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| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LA1117.PDF ] | |
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