1.2V VOLTAGE REGULATOR OUTPUT VOLTAGE RANGE OUTPUT CURRENT EXCESS
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LM117/217 LM317
1.2V VOLTAGE REGULATOR
OUTPUT VOLTAGE RANGE OUTPUT CURRENT EXCESS 1.5A 0.1% LINE LOAD REGULATION FLOATING OPERATION HIGH VOLTAGES COMPLETE SERIES PROTECTIONS CURRENT LIMITING, THERMAL SHUTDOWN CONTROL
DESCRIPTION LM117/LM217/LM317 monolithic integrated circuit TO-220, ISOWATT220, TO-3 D2PAK 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.
TO-3
D2PAK
TO-220
ISOWATT220
ABSOLUTE MAXIMUM RATING
Symbol Parameter Input-output Differential Voltage Output Current Operating Junction Temperature for: LM117 LM217 LM317 Power Dissipation Storage Temperature Value Intenrally Limited Internally Limited
Unit
THERMAL DATA
Symbol Parameter TO-3 TO-220 ISOWATT220 D2PAK 62.5 Unit
thj- Thermal Resistance Junction-case thj- Thermal Resistance Junction-ambient
November 1999
1/11
LM117/217/317
CONNECTION DIAGRAM ORDERING NUMBERS (top view)
TO-220
ISOWATT220
D2PAK
TO-3
Type LM117 LM217 LM317
TO-3 LM117K LM217K LM317K
TO-220 LM217T LM317T
ISOWATT220
LM217D2T
LM317P
LM317D2T
SCHEMATIC DIAGRAM
2/11
LM117/217/317
BASIC ADJUSTABLE REGULATOR
ELECTRICAL CHARACTERISTICS IMAX 1.5A PMAX 20W, unless otherwise specified)
Symbol Parameter Line Regulation Load Regulation Test Conditions IMAX IMAX Adjustment Current Adjustment Current IMAX Reference Voltage (between IMAX PMAX Output Voltage Temperature Stability Minimum Load Current Maximum Load Current PMAX PMAX Output Noise Voltage (percentance Supply Voltage Rejection 10Hz 10KHz =10µF
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
(max
0.003
0.003
CADJ connected between ground. Note: Unless otherwise specified above specs, apply over following conditions 150°C; 150°C 125°C.
3/11
LM117/217/317
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
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voltage, supplies very high voltage with respect ground regulated long maximum input-to-output 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. Performance improved with added capacitance follow: input bypass capacitor 0.1µF adjustment terminal ground 10µF capacitor
LM117/217/317
improve ripple rejection about (CADJ). tantalium 25µFAluminium electrolitic) capacitor output improve transient response. additional external capacitors, good Figure Voltage Regulator with Protection Diodes. practice protection diodes, shown fig.5. protect device against input short circuit, while protect against output short circuit capacitance discharging.
protect device against input short circuit, while protects against output short circuit capacitors discharging
Figure Slow Turn-on Regulator.
Figure Current Regulator.
IADJ
1.25V
5/11
LM117/217/317
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.
6/11
LM117/217/317
TO-3 MECHANICAL DATA
MIN. 30.10 3.88 10.9 16.9 26.2 4.09 39.50 1.185 0.152 0.96 TYP. 11.7 1.10 1.70 20.0 0.429 0.665 1.031 0.161 1.555 0.037 MAX. MIN. inch TYP. 0.460 0.043 0.066 0.342 0.787 MAX.
DIM.
P003N
7/11
LM117/217/317
TO-220 MECHANICAL DATA
DIM. MIN. DIA. 13.0 2.65 15.25 3.75 0.49 0.61 1.14 1.14 4.95 10.0 16.4 14.0 2.95 15.75 3.93 3.85 0.511 0.104 0.600 0.244 0.137 0.147
TYP. MAX. 4.60 1.32 2.72 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 MIN. 0.173 0.048 0.094 4.40 1.23 2.40
inch TYP. MAX. 0.181 0.051 0.107 0.050 0.027 0.034 0.067 0.067 0.203 0.106 0.409 0.645 0.551 0.116 0.620 0.260 0.154 0.151
Dia.
8/11
P011C
LM117/217/317
ISOWATT220 MECHANICAL DATA
DIM. MIN. 28.6 15.9 0.75 1.15 1.15 4.95 30.6 10.6 16.4 1.126 0.385 0.626 0.354 0.118 TYP. MAX. 2.75 10.4 MIN. 0.173 0.098 0.098 0.015 0.030 0.045 0.045 0.195 0.094 0.393 0.630 1.204 0.417 0.645 0.366 0.126 inch TYP. MAX. 0.181 0.106 0.108 0.027 0.039 0.067 0.067 0.204 0.106 0.409
P011G
9/11
LM117/217/317
TO-263 (D2PAK) MECHANICAL DATA
MIN. 2.49 1.14 0.45 1.23 8.95 4.88 1.27 TYP. MAX. 2.69 0.93 1.36 9.35 10.4 5.28 15.85 1.75 MIN. 0.173 0.098 0.027 0.044 0.017 0.048 0.352 0.393 0.192 0.590 0.050 0.055 inch TYP. MAX. 0.181 0.106 0.036 0.067 0.023 0.053 0.368 0.409 0.208 0.624 0.055 0.068
DIM.
DETAIL"A"
DETAIL"A"
P011P6/F
10/11
LM117/217/317
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