LB1117
1.0A Low Dropout Positive Regulators
General Description
The LB1117 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 LB1117 is set at the
factory and trimmed to ±1%. The LB1117 is stable with a aluminum electrolytic capacitor of 10uF.
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
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•
•
•
•
•
•
•
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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 Aluminum Electrolytic Capacitor Cap of 10uF
Package : SOT223-3L, SOT89-3L, TO252-3L
RoHS Compliant & Halogen Free
Applications
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•
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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.
LB1117 Rev. 3.0
1 of 15
www.liteonsemi.com
2018/04/26
LB1117
1.0A Low Dropout Positive Regulators
Absolute Maximum Ratings
(at T
A
=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
DC Supply Voltage
Power Dissipation
Maximum Junction Temperature (note1)
Storage Temperature Range
Lead Temperature
ESD Withstand Voltage
- Human Body Model (HBM)
- Machine Model (MM)
Moisture Sensitivity
-0.3 ~ 20V
Internally Limited
150°C
-65°C to 150°C
260°C, to 10 sec
2000V
200V
Please Refer The Moisture Sensitivity Label on the IC packing bag
material for more detail.
Value
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
Input Voltage
Output Current
Operating Junction Temperature Range
Symbol
V
IN
I
OUT
T
J
Min
V
OUT
+1.5V
10
-40
Max
15
1000
125 (Note2)
Unit
V
mA
°C
Note 2 : If the IC experienced OTP, then the temperature may need to drop to <125 °C to let the IC recover.
LB1117 Rev. 3.0
5 of 15
www.liteonsemi.com
2018/04/26
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