HTC LM317L

ADJUSTABLE VOLTAGE REGULATOR (POSITIVE)
LM317L
3-TERMINAL 100mA POSITIVE ADJUSTABLE REGULATOR
TO-92 PKG (TOP
VIEW)
This monolithic integrated circuit is an adjustable
3-terminal positive voltage regulator designed to
supply more than 100mA of load current with an
3. VIN
output voltage adjustable over a 1.2 to 37V. It employs
internal current limiting, thermal shut-down and safe
area compensation.
2. VOUT
1. ADJ
SOT-89 PKG (FRONT VIEW)
FEATURES
◇
◇
◇
◇
◇
Output current in Excess of 100mA
Output Adjustable Between 1.2V and 37V
Internal Thermal-Overload Protection
Internal Short-Circuit Current-Limiting
Output Transistor Safe-Area Compensation
1.Adj
2. Vout 3. Vin
◇ Floating operation for high voltage applications
ORDERING INFORMATION
Device
Marking
LM317L
LM317L
Package
TO-92
LM317F
317
SOT-89
BLOCK DIAGRAM
HTC
53
ADJUSTABLE VOLTAGE REGULATOR (POSITIVE)
LM317L
TYPICAL APPLICATIONS
Fig.5 Programmable Regulator
CI is required when regulator is located in appreciable distance from power supply filter.
Co is not needed for stability, however, it does improve transient response.
Since lADJ is controlled to less than 100㎂, the error associated with this term is negligible
in most applications.
HTC
54
ADJUSTABLE VOLTAGE REGULATOR (POSITIVE)
LM317L
ABSOLUTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified)
Characteristic
Input-output Voltage Differential
Lead Temperature
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
VI-Vo
TLEAD
PD
TOPR
TSTG
Unit
V
℃
℃
℃
Value
40
230
Internally limited
0 ∼ +125
-65 ∼ +125
ELECTRICAL CHARACTERISTICS
(VI-Vo=5V, Io=0.5A, 0℃≤TJ≤125℃, IMAX=1.5A, PMAX= 1.5 W, unless otherwise specified)
Characteristic
Line Regulation
Load Regulation
Adjustable Pin Current
Adjustable Pin Current
Change
Symbol
△Vo
△Vo
Min.
IADJ
△IADJ
Reference Voltage
VREF
Temperature Stability
Minimum Load Current to
Maintain Regulation
Maximum Output Current
STT
L(MIN)
Io(MAX)
RMS Noise, % of VOUT
eN
Ripple Rejection
RR
Long-Term Stability,
TJ=THIGH
Test condition
TA=0 ∼ 125℃ 3V≤VI-Vo≤40V
3V≤VI-Vo≤40V
TA=25℃, 10㎃≤Io≤IMAX
Vo≤5V
Vo≥5V
10㎃≤Io≤IMAX
Vo≤5V
Vo≥5V
ST
3V≤VI-Vo≤40V
10㎃≤Io≤IMAX
P≤PMAX
3V≤VIN-VOUT≤40V
10㎃≤Io≤IMAX
PD≤PMAX
1.20
VI-Vo=40V
VI-Vo≤5V, PD≤PMAX
VI-Vo≤40V, PD≤PMAX, TA=25℃
TA=25℃, 10Hz≤f≤10KHz
Vo=10V, f=120Hz
without CADJ
CADJ=10 ㎌
TA=25℃, for end point
measurements, 1000HR
100
0.156
66
Typ.
0.01
0.02
Max.
0.04
0.07
Unit
%/V
%/V
10
0.1
25
0.5
㎷
%/Vo
20
0.3
46
70
1.5
100
㎷
%/Vo
㎂
0.2
5
㎂
1.25
1.30
V
0.7
3.5
10
%/Vo
㎃
200
0.4
0.003
60
75
0.3
mA
0.01
%/Vo
㏈
1
%
* Load and line regulation are specified at constant junction temperature. Change in VD
due to heating effects must be taken into account separately. Pulse testing with low duty is used.
(Pmax = 1500 mW)
HTC
55