LM317T (KA317) Adjustable Voltage Regulator (Positive) 3-TERMINAL

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LM317T (KA317) Adjustable Voltage Regulator (Positive) 3-TERMINAL

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LM317T (KA317)
LM317T (KA317) Adjustable Voltage Regulator (Positive)
3-TERMINAL POSITIVE ADJUSTABLE REGULATOR
This monolithic integrated circuit adjustable 3-terminal positive voltage regulator designed supply 2.2A typical load current with output voltage adjustable over 37V. employs internal current limiting, thermal shutdown safe area compensation.
TO-220
FEATURES
Output Current 2.2A Typical Output Adjustable Between Internal Thermal-Overload Protection Internal Short-Circuit Current-Limiting Output Transistor Sate-Area Compensation TO-220 Package
ORDERING INFORMATION
Device LM317T (KA317) Package TO-220 Operating Temperature +125°C
BLOCK DIAGRAM
Voltage Reference
Production Circuitry Rlimit
Vadj
©2000 Fairchild Semiconductor International
Rev. 2000
LM317T (KA317)
ABSOLUTE MAXIMUM RATINGS (TA= +25°C, unless otherwise specified)
Characteristic Input-Output Voltage Differential Lead Temperature Power Dissipation Operating Temperature Range Storage Temperature Range Temperature Coefficient Output Voltage Symbol TLEAD TOPR TSTG VO/T Value Internally limited +125 +125 0.02 Unit %/°C
ELECTRICAL CHARACTERISTICS
0.5A, +125°C, IMAX 1.5A, PMAX 20W, unless otherwise specified) Characteristic Line Regulation Load Regulation Symbol Rline Rload +25°C Test Conditions +25°C, 10mA IMAX 10mA IMAX 0.01 0.02 0.04 0.07 Unit %/VO %/VO
Adjustable Current Adjustable Current Change
IADJ IADJ
Reference Voltage
VREF
10mA IMAX PMAX VOUT 10mA IMAX PMAX 15V, PMAX 40V, PMAX, 25°C +25°C, 10Hz 10KHz 10V, 120Hz without CADJ CADJ 10µF +25°C point measurements, 1000HR
1.20
1.25
1.30
Temperature Stability Minimum Load Current Maintain Regulation Maximum Output Current Noise, VOUT Ripple Rejection
L(MIN) IO(MAX)
0.003
%/VO
0.01
%/VO
Long-Term Stability, THIGH Thermal Resistance Junction Case
°C/W
Load line regulation specified constant junction temperature. Change heating effects must taken into account separately. Pulse testing with duty used. (PMAX 20W)
©2000 Fairchild Semiconductor International
Rev. 2000
LM317T (KA317)
TYPICAL PERFORMANCE CHARACTERISTICS
Fig. Load Regulation
OUTPUT VOLTAGE DEVIATION -0.2
1.5A
Fig. Adjustment Current
Adjustment Current (µA)
0.5A
-0.4 -0.6 -0.8 -1.0 TEMPERATURE (°C)
TEMPERATURE (°C)
Fig. Dropout Voltage
INPU-OUTPUT VOLTAGE DIFFERENTIAL
100mV 1.5A
Fig. Reference Voltage
1.26 REFERENCE VOLTAGE 1.255 1.25 1.245 1.24 1.235
500mA 200mA
20mA
TEMPERATURE (°C)
TEMPERATURE (°C)
©2000 Fairchild Semiconductor International
Rev. 2000
LM317T (KA317)
Typical Application
KA317 Vadj
0.1µF
Iadj
0.1µF
1.25V R2/R1) Iadj
Fig. Programmable Regulator required when regulator located appreciable distance from power supply filter. improves transient response reducing noise which present output. Since controlled less than 100µA, error associated with this term negligible most applications.
©2000 Fairchild Semiconductor International
Rev. 2000
LM317T (KA317)
TO-220 Package Dimensions
TO-220 CODE
9.90 ±0.20 1.30 ±0.10 2.80 ±0.10 (8.70) ±0.10 (1.70) 4.50 ±0.20
1.30 -0.05
+0.10
9.20 ±0.20
(1.46)
13.08 ±0.20
(1.00)
(3.00)
15.90 ±0.20
1.27 ±0.10
1.52 ±0.10
0.80 ±0.10 2.54TYP [2.54 ±0.20] 2.54TYP [2.54 ±0.20]
10.08 ±0.30
18.95MAX.
(3.70)
(45°
0.50 -0.05
+0.10
2.40 ±0.20
10.00 ±0.20
Dimensions Millimeters
August 1999,
©2000 Fairchild Semiconductor International
Rev. 2000
TRADEMARKS
following registered unregistered trademarks Fairchild Semiconductor owns authorized intended exhaustive list such trademarks.
Quiet SeriesFAST® FASTrGTODISCLAIMER
QFETQSQuiet SeriesSuperSOTTM-3 SuperSOTTM-6
SuperSOTTM-8 SyncFETTinyLogicUHCVCX
FAIRCHILD SEMICONDUCTOR RESERVES RIGHT MAKE CHANGES WITHOUT FURTHER NOTICE PRODUCTS HEREIN IMPROVE RELIABILITY, FUNCTION DESIGN. FAIRCHILD DOES ASSUME LIABILITY ARISING APPLICATION PRODUCT CIRCUIT DESCRIBED HEREIN; NEITHER DOES CONVEY LICENSE UNDER PATENT RIGHTS, RIGHTS OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL FAIRCHILD SEMICONDUCTOR CORPORATION. used herein: Life support devices systems devices systems which, intended surgical implant into body, support sustain life, whose failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user. critical component component life support device system whose failure perform reasonably expected cause failure life support device system, affect safety effectiveness.
PRODUCT STATUS DEFINITIONS Definition Terms
Datasheet Identification Advance Information Product Status Formative Design First Production Definition This datasheet contains design specifications product development. Specifications change manner without notice. This datasheet contains preliminary data, supplementary data will published later date. Fairchild Semiconductor reserves right make changes time without notice order improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves right make changes time without notice order improve design. This datasheet contains specifications product that been discontinued Fairchild semiconductor. datasheet printed reference information only.
Preliminary
Identification Needed
Full Production
Obsolete
Production
©2000 Fairchild Semiconductor International
Rev.

LM317T (KA317) Adjustable Voltage Regulator (Positive) 3-TERMINAL

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