Rev. A/DX 2007
-
06
-
04
LM317L
100mA Adjustable Positive
Voltage Regulator
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
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-
TAITRON (800)
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100mA Adustable Positive Voltage Regulator
General Description
• The LM317L is a monolithic integrated circuit, designed to supply
100mA of output current with voltage adjustable from 1.25V ~ 37V.
• The LM317L is available in standard TO-92 and SOP-8 packages.
Features Applications
• Output voltage adjustable from 1.25V ~ 37V
• Output current in excess of 100mA
• Internal thermal overload protection
• Internal short circuit current limiting
• Output transistor safe area compensation
• RoHS Compliance
Ordering Information
TO-92 SOP-8
• High Efficiency Linear Regulators
• Post Regulation for Switching Supplies
• Microprocessor Power Supply
• Mother Board I/O Power Supply
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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Pin Configuration
Block Diagram
Outline: Z
TO-92
Outline: S8
SOP-8
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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Absolute Maximum Ratings (Ta=25° C, unless otherwise specified)
Symbol Description Ratings Unit
VIN-VOUT Input - Output Voltage Differential 40 V
IO Max. Output Current 100 mA
PD Power Dissipation Internally Limited mW
TJ Operating Junction Temperature 125 ° C
TOPR Operating Temperature Range 0 ~ 125 ° C
TSTG Storage Temperature Range -40 ~ 150 ° C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
Electrical Characteristics
(VIN-VOUT=5V, IOUT=40mA, Ta=25ºC, unless otherwise specified)
LM317L
Symbol Description Min. Typ. Max. Unit Conditions
∆VOUT/VOUT Line Regulation - 0.01 0.04 %/V 3V≤VIN-VOUT≤40V,
IOUT≤20mA
- 5 25 %
5mA≤IOUT≤100mA, Vout≥5V
∆VOUT Load Regulation - 0.1 0.5 % 5mA≤IOUT≤101mA, Vout≤5V
IADJ Adjustable Pin Current - 50 100 µA -
∆IADJ Adjustable Pin Current
Change - 0.2 5 µA 3V≤VIN-VOUT≤40V,
5mA≤IOUT≤100mA, Pd<625mW
VREF Reference Input Voltage 1.20 1.25 1.30 V 3V≤VIN-VOUT≤15V,
5mA≤IOUT≤100mA, Pd<625mW
- Temperature Stability - 0.7 - %/VOUT TMIN ≤TJ≤TMAX
IL(MIN) Minimum Load Current for
Regulation - 3.5 10 mA VIN-VOUT=40V
IO(MAX) Maximum Output Current - 50 - mA VIN-VOUT=40V, Pd≤625mW
eN RMS Noise vs. % of Vout - 0.003 0.01 %/Vout 10Hz ≤f≤10KHz
- 65 - VOUT=10V, f=120Hz, CADJ=0µF
PSRR Ripple Rejection 66 80 - dB VOUT=10V, f=120Hz, CADJ=10µF
Note: CADJ is connected between Adjust pin and Ground.
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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Fig.1- Load Regulation vs. Temperature
Temperature
(
°
C
)
Fig.3- Current Limit
VIN-VOUT (V)
Fig.2- Adjustment Current vs. Temperature
Tem
p
erature
(
° C
)
Typical Characteristics Curves
∆VOUT, Output Voltage Deviation (%)
Fig.4- Minimum Operating Current
VIN-VOUT (V)
IADJ, Adjustment Current (µA)
IOUT, Output Current (mA)
IOUT, Min. Output Current (mA)
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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06
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LM317L
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Typical Application
Fig.5-Programmable Voltage Regulator
Fig.7- Soft Start Application Fig.8- Constant Current Application
Fig.6- Regulator with On-off Control
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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Dimensions in mm (inches)
TO-92
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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Dimensions in mm (inches) (Continued)
SOP-8
100mA Adjustable Positive Voltage Regulator
Rev. A/DX 2007
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LM317L
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How to contact us:
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