Electrical Characteristics (Continued)
Typicals and limits appearing in normal type apply for T
J
= 25˚C. Limits appearing in Boldface type apply over the entire junc-
tion temperature range for operation, 0˚C to 125˚C for commercial grade and −40˚C to 125˚C for industrial grade.
Symbol Parameter Conditions Min
(Note 5) Typ
(Note 4) Max
(Note 5) Units
Minimum Load
Current (Note 7) LMS1585A/87-ADJ
1.5V ≤V
IN
−V
OUT
≤5.75V 2.0 10.0 mA
Quiescent Current LMS1585A-3.3/LMS1587-3.3/
LMS1585A-1.5/LMS1587-1.5
V
IN
= 5V 7.0 13.0 mA
Thermal Regulation T
A
= 25˚C, 30ms Pulse 0.003 %/W
Ripple Rejection LMS1585A-ADJ
f
RIPPLE
= 120Hz, V
IN
−V
OUT
= 3V,
I
OUT
= 5A, C
OUT
= 25µF Tantalum 72 dB
LMS1585A-1.5
f
RIPPLE
= 120Hz, C
OUT
= 25µF Tantalum,
I
OUT
= 5A, V
IN
= 4.5V 60 72 dB
LMS1585A-3.3
f
RIPPLE
= 120Hz, C
OUT
= 25µF Tantalum,
I
OUT
= 5A, V
IN
= 6.3V 72 dB
LMS1587-ADJ
f
RIPPLE
= 120Hz, V
IN
−V
OUT
= 3V, I
OUT
=3A
C
OUT
= 25µF Tantalum 72 dB
LMS1587-1.5
f
RIPPLE
= 120Hz, C
OUT
= 25µF Tantalum,
I
OUT
= 3A, V
IN
= 4.5V 60 72 dB
LMS1587-3.3
f
RIPPLE
= 120Hz, C
OUT
= 25µF Tantalum,
I
OUT
= 3A, V
IN
= 6.3V 72 dB
Adjust Pin Current 55 120 µA
Adjust Pin Current 10mA ≤I
OUT
≤I
FULLLOAD
,
1.5V ≤V
IN
−V
OUT
≤5.75V (Note 8) 0.2 µA
Temperature
Stability 0.5 %
Long Term Stability T
A
= 125˚C, 1000Hrs 0.03 %
RMS Output Noise
(% of V
OUT
)10Hz ≤f≤10kHz 0.003 %
Thermal Resistance
Junction-to-Case 3-Lead TO-263: Control/Output Section
3-Lead TO-220: Control/Output Section 0.65/2.7
0.65/2.7 ˚C/W
˚C/W
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: The maximum power dissipation is a function of TJ(max) ,θJA, and TA. The maximum allowable power dissipation at any ambient temperature
is PD=(T
J(max)–T A)/θJA. All numbers apply for packages soldered directly into a PC board.
Note 3: For testing purposes, ESD was applied using human body model, 1.5kΩin series with 100pF.
Note 4: Typical Values represent the most likely parametric norm.
Note 5: All limits are guaranteed by testing or statistical analysis.
Note 6: Load and line regulation are measured at constant junction temperature, and are guaranteed up to the maximum power dissipation of 30W. Power
dissipation is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output
range.
Note 7: The minimum output current required to maintain regulation.
Note 8: IFULLLOAD is 5A for LMS1585A and 3A for LMS1587.
Note 9: Consult factory for other fixed voltage options.
LMS1585A/LMS1587
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