1.2V ADJUSTABLE VOLTAGE REGULATOR OUTPUT VOLTAGE RANGE OUTPUT CUR

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1.2V ADJUSTABLE VOLTAGE REGULATOR OUTPUT VOLTAGE RANGE OUTPUT CUR

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LM117/217 LM317
1.2V ADJUSTABLE VOLTAGE REGULATOR
OUTPUT VOLTAGE RANGE OUTPUT CURRENT EXCESS 1.5A (0.5A TO-39) 0.1% LINE LOAD REGULATION FLOATING OPERATION HIGH VOLTAGES COMPLETE SERIES PROTECTIONS CURRENT LIMITING, THERMAL SHUTDOWN CONTROL
TO-3
DESCRIPTION LM117/LM217/LM317 monolithic integrated circuit TO-220 TO-3 packages intended positive adjustable voltage regulators. They designed supply more than 1.5A load current with output voltage adjustable over range. nominal output voltage selected means only resistive divider, making device exceptionally easy eliminating stocking many fixed regulators. ABSOLUTE MAXIMUM RATING
Symbol Vi-o Output Current Operating Junction Temperature for: LM117 LM217 LM317 Parameter Input-output Differential Voltage
TO-220
TO-39
Value Intenrally Limited Internally Limited
Unit
Power Dissipation
THERMAL DATA
TO-3 Rthj-case Thermal Resistance Junction-case Rthj-amb Thermal Resistance Junction-ambient TO-220 ISOWATT220 TO-39
March 1993
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LM117/LM217/LM317
CONNECTION ORDERING NUMBER TO-220 TO-3 TO-3
INPUT pin2 pin3 OUTPUT Type LM117 LM217 LM317 TO-3 LM117K LM217K LM317K LM217T LM317T LM217P LM317P TO-220 ISOWATT220 TO-39 LM117H LM217H LM317H
SCHEMATIC DIAGRAM
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LM117/LM217/LM317
Basic adjustable regulator.
ELECTRICAL CHARACTERISTICS TO-3 TO-220, TO-39, according note unless otherwise specified)
Symbol Parameter Line Regulation Load Regulation Test Conditions IMAX IMAX IADJ IADJ VREF Adjustment Current Adjustment Current Reference Voltage (between Output Voltage Temperature Stability Minimum Load Current Maximum Load Current PMAX PMAX Output Noise Voltage 10Hz 10KHz (percentance Supply Voltage Rejection CADJ=0 CADJ=10µF TO-3 TO-220 TO-39 TO-3 TO-220 TO-39 IMAX IMAX PMAX LM117/LM217 Min. Typ. 0.01 0.02 1.25 Max. 0.02 0.05 Min. LM317 Typ. 0.01 0.02 1.25 Max. 0.04 0.07 Unit
Io(min) Io(max)
0.07 0.003
0.07 0.003
CADJ connected between ground.
Note: Unless otherwise specified above specs, apply over following conditions 150°C; 150°C 125°C. IMAX: TO-3 TO-220; TO-39 PMAX: TO-3 TO-220; TO-39 3/10
LM117/LM217/LM317
Figure Output Current Input-output Differential Voltage. Figure Dropout Voltage Junction Temperature.
Figure Reference Voltage Junction
Figure Basic Adjustable Regulator.
APPLICATION INFORMATION LM117/217/317 provides internal reference voltage 1.25V between output adjustments terminals. This used constant current flow across external resistor divider (see fig. giving output voltage VREF
IADJ
device designed minimize term IADJ (100µA max) maintain very constant with line load changes. Usually, error term IADJ neglected. obtain previous requirement, regulator quiescent current returned output terminal, imposing minimum load current condition. load insufficient, output voltage will rise. Since LM117/217317 floating regulator "sees" only input-to-output differential voltage,
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supplies very high voltage with respect ground regulated long maximum input-tooutput differential exceeded. Furthermore, programmable regulator easily obtainable and, connecting fixed resistor between adjustment output, device used precision current regulator. order optimise load regulation, current resistor (see fig. should tied close possible regulator, while ground terminal should near ground load provide remote ground sensing. external capacitors required, performance improved with added capacitance follow: input bypass capacitor
LM117/LM217/LM317
adjustment terminal ground capacitor improve ripple rejection about (CADJ). tantalium capacitor output improve transient response. additional external capacitors, good practice protection diodes, shown fig.5. protect device against input short circuit, while protect against output short circuit capacitance discharging.
Figure Voltage Regulator with Protection Diodes.
protect device against input short circuit, while protects against output short circuit capacitors discharging
Figure Slow Turn-on Regulator.
Figure Current Regulator.
Vref 1.25V IADJ
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LM117/LM217/LM317
Figure Electronic Shut-down Regulator. Figure Digitally Selected Outputs.
sets maximum
Figure Battery Charger (12V).
Figure Current Limited Charger.
sets output impedance charger allows charging rates with fully charged battery.
sets peak current (0.6A recommended filter input transients.
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LM117/LM217/LM317
TO-3 MECHANICAL DATA
MIN. 11.00 0.97 1.50 8.32 19.00 10.70 16.50 25.00 4.00 38.50 30.00 TYP. MAX. 13.10 1.15 1.65 8.92 20.00 11.10 17.20 26.00 4.09 39.30 30.30 MIN. 0.433 0.038 0.059 0.327 0.748 0.421 0.649 0.984 0.157 1.515 1.187 inch TYP. MAX. 0.516 0.045 0.065 0.351 0.787 0.437 0.677 1.023 0.161 1.547 1.193
DIM.
P003F
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LM117/LM217/LM317
TO-220 MECHANICAL DATA
DIM. MIN. DIA. 13.0 2.65 15.2 3.75 0.49 0.61 1.14 1.14 4.95 10.0 16.4 14.0 2.95 15.9 3.85 0.511 0.104 0.598 0.244 0.137 0.147 4.40 1.23 2.40 1.27 0.70 0.88 1.70 1.70 5.15 10.40 0.019 0.024 0.044 0.044 0.194 0.094 0.393 0.645 0.551 0.116 0.625 0.260 0.165 0.151 TYP. MAX. 4.60 1.32 2.72 MIN. 0.173 0.048 0.094 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 inch TYP. MAX. 0.181 0.051 0.107
Dia.
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P011C
LM117/LM217/LM317
TO39 MECHANICAL DATA
DIM. MIN. 5.08 (typ.) 12.7 0.49 0.200 0.047 0.035 TYP. MAX. MIN. 0.500 0.019 0.260 0.334 0.370 TYP. MAX. inch
P008B
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LM117/LM217/LM317
Information furnished believed accurate reliable. However, SGS-THOMSON Microelectronics assumes responsability consequences such information infringement patents other rights third parties which results from use. license granted implication otherwise under patent patent rights SGS-THOMSON Microelectronics. Specifications mentioned this publication subject change without notice. This publication supersedes replaces information previously supplied. SGS-THOMSON Microelectronics products authorized ascritical components life support devices systems without express written approval SGS-THOMSON Microelectonics. 1994 SGS-THOMSON Microelectronics Rights Reserved SGS-THOMSON Microelectronics GROUP COMPANIES Australia Brazil France Germany Hong Kong Italy Japan Korea Malaysia Malta Morocco Netherlands Singapore Spain Sweden Switzerland Taiwan Thailand United Kingdom U.S.A
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1.2V ADJUSTABLE VOLTAGE REGULATOR OUTPUT VOLTAGE RANGE OUTPUT CUR

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