SGS Thomson Microelectronics LM350K, LM250K, LM150K Datasheet
LM15 0/2 50
LM350
March1993
ADJUSTABLE VOLTAGE REGULATORS
THREE-TERMINAL 3 A
.GUARANTEED 3A OUTPUTCURRENT
.ADJUSTABLE OUTPUT DOWN TO 1.2V
.LINE REGULATIONTYPICALLY 0.005% /V
.LOAD REGULATION TYPICALLY0.1%
.GUARANTEED THERMAL REGULATION
.CURRENT LIMIT CONSTANT WITH TEM-
PERATURE
.STANDARD3-LEAD TRANSISTOR PACKAGE
TO3
K SUFFIX
(SteelCan)
ORDER CODE
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
K
LM150
LM250
LM350
-55
o
C to + 150oC
-25
o
C to + 150oC
0oC to + 125oC
•
•
•
EXAMPLE: LM150K
PIN CONNE CTI O N
(bottom view)
Case is output
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ABSOLUTE MAXIMUM RATING
Symbol Parameter Value Unit
P
tot
Power Dissipation Internally Limited W
V
I-VO
Input-Output Voltage DIfferential 35 V
T
oper
Operating Junction Temperature Range LM150
LM250
LM350
-55 to 150
-25 to 150
0 to 125
o
C
T
stg
Storage Temperature Range -65 to 150
o
C
T
lead
Lead Temperature (Soldering, 10 seconds) 300
o
C
THERMAL CHARACTERISTICS
Symbol Parameter Value Unit
R
th(j-c)
Typical Junction-Case Thermal Resistance 1.5
o
C/W
R
th(j-a)
Max Junction-Ambient Thermal Resistance 35
o
C/W
SCHEM ATIC DIA GRA M
LM150-LM250-LM350
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ELECTRICAL CHARACTERISTICS
LM150: -55oC ≤ Tj≤ 150oC, VI-VO= 5V, IO= 1.5A
LM250: -25oC ≤ Tj≤ 150oC, VI-VO= 5V, IO= 1.5A
LM350: 0oC ≤ Tj≤ 150oC, VI-VO= 5V, IO= 1.5A
Although power dissipation is internally limited, these specifications apply to power dissipation up to
30W (unless otherwise specified).
Symbol Parameter LM150-LM250 LM350 Unit
Min. Typ. Max. Min. Typ. Max.
K
VI
Line Regulation - (note 1)
T
amb
=25oC, 3 V ≤ (VI-VO)≤35 V
0.005 0.01 0.005 0.03 %/V
K
VO
Load Regulation T
amb
=25oC, 10 mA ≤ IO≤ 3A
VO≤5V - (note 1)
VO≥ 5V - (note 1)
5
0.1150.3
5
0.1250.5
mV
%
Thermal Regulation (pulse = 20 ms) 0.002 0.01 0.002 0.02 %/W
I
adj
Adjustment Pin Current 50 100 50 100 µA
∆I
adj
Adjustment Pin Current Change
10 mA ≤ IL≤ 3A,3V≤(VI-VO)≤35 V
0.2 5 0.2 5 µA
v
(ref)
Reference Voltage
3V ≤ (VI-VO)≤35 V, 10 mA ≤ IO≤ 3A, P ≤ 30W
1.19 1.24 1.29 1.19 1.24 1.29 V
K
VI
Line Regulation - (note 1)
3V≤(VI-VO)≤35 V
0.02 0.05 0.02 0.05 %/V
K
VO
Load Regulation 10 mA ≤ IO≤ 3A
VO≤5V - (note 1)
VO≥ 5V - (note 1)
20
0.3
50
1
20
0.3701.5
mV
%
K
VT
Temperature Stability (T
min
≤ Tj≤ T
max
)11%
I
O(min)
Minimum Load Current (VI-VO≤35 V) 3.5 5 3.5 10 mA
I
O(max)
Current Limit (VI-VO≤10 V)
DC
V
I-VO
=30V
3 4.5
1
3 4.5
1
A
RMS Output Noise, % of V
O
(T
amb
=25oC, 10 Hz ≤ f ≤ 10 KHz)
0.001 0.001 %
R
vf
Ripple Rejection Ratio
VO= 10 V, f = 120 Hz
C
adi
=10µF66
65
86 66
65
86
dB
K
VH
Long Term Stability (T
amb
= 125oC) 0.3 1 0.3 1 %
Note 1 : Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects are taken
into account separately by thermal rejection.
LM150-LM250-LM350
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