Datasheet

LP2950
LP2951
SLVS582H –APRIL 2006–REVISED MARCH 2012 www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
V
IN
Continuous input voltage range –0.3 V to 30 V
V
SHDN
SHUTDOWN input voltage range –1.5 V to 30 V
ERROR comparator output voltage range
(2)
–1.5 V to 30 V
V
FDBK
FEEDBACK input voltage range
(2) (3)
–1.5 V to 30 V
D package
(5)
97°C/W
DRG package
(6)
52.44°C/W
θ
JA
Package thermal impedance
(4)
LP package
(5)
140°C/W
P package
(5)
84.6°C/W
T
J
Operating virtual-junction temperature 150°C
T
stg
Storage temperature range –65°C to 150°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) May exceed input supply voltage
(3) If load is returned to a negative power supply, the output must be diode clamped to GND.
(4) Maximum power dissipation is a function of T
J
(max), θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J
(max) – T
A
)/θ
JA
. Operating at the absolute maximum T
J
of 150°C can affect reliability.
(5) The package thermal impedance is calculated in accordance with JESD 51-7.
(6) The package thermal impedance is calculated in accordance with JESD 51-5.
RECOMMENDED OPERATING CONDITIONS
MIN MAX UNIT
V
IN
Supply input voltage
(1)
30 V
T
J
Operating virtual junction temperature –40 125 °C
(1) Minimum V
IN
is the greater of:
(a) 2 V (25°C), 2.3 V (over temperature), or
(b) V
OUT(MAX)
+ Dropout (Max) at rated I
L
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