LP2997 Datasheet, PDF (3/12 Pages) National Semiconductor (TI) – DDR-II Termination Regulator

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
PVIN, AVIN, VDDQ to GND
No pin should exceed AVIN
Storage Temp. Range
Junction Temperature
Lead Temperature (Soldering, 10 sec)
−0.3V to +6V
−65˚C to +150˚C
150˚C
260˚C
SO-8 Thermal Resistance (θ_JA)
PSOP-8 Thermal Resistance (θ_JA)
Minimum ESD Rating (Note 2)
Operating Range
Junction Temp. Range (Note 3)
AVIN to GND
151˚C/W
43˚C/W
1kV
0˚C to +125˚C
2.2V to 5.5V
Electrical Characteristics Specifications with standard typeface are for T_J = 25˚C and limits in boldface
type apply over the full Operating Temperature Range (T_J = 0˚C to +125˚C) (Note 4). Unless otherwise specified,
AVIN = 2.5V, PVIN = 1.8V, VDDQ = 1.8V.
Symbol
V_REF
Z_VREF
V_TT
Vos_TT/V_TT
I_Q
Z_VDDQ
I_SD
I_{Q_SD}
V_IH
V_IL
I_SENSE
T_SD
T_SD_HYS
Parameter
V_REF Voltage
V_REF Output
Impedance
V_TT Output Voltage
V_TT Output Voltage
Offset (V_REF-V_TT)
Quiescent Current
(Note 5)
VDDQ Input Impedance
Quiescent Current in
Shutdown (Note 5)
Shutdown Leakage
Current
Minimum Shutdown
High Level
Minimum Shutdown
Low Level
V_SENSE Input Current
Thermal Shutdown
Thermal Shutdown
Hysteresis
Conditions
PVIN = VDDQ = 1.7V
PVIN = VDDQ = 1.8V
PVIN = VDDQ = 1.9V
I_REF = -30 to +30 µA
I_OUT = 0A
PVIN = VDDQ = 1.7V
PVIN = VDDQ = 1.8V
PVIN = VDDQ = 1.9V
I_OUT = ±0.5A (Note 7)
PVIN = VDDQ = 1.7V
PVIN = VDDQ = 1.8V
PVIN = VDDQ = 1.9V
I_OUT = 0A
I_OUT = -0.5A
I_OUT = +0.5A
I_OUT = 0A (Note 5)
SD = 0V
SD = 0V
(Note 6)
Min
0.837
0.887
0.936
Typ
0.860
0.910
0.959
2.5
Max
0.887
0.937
0.986
Units
V
kΩ
0.822
0.874
0.923
0.828
0.878
0.928
-25
-25
-25
1.9
0.856
0.908
0.957
0.856
0.908
0.957
0
0
0
320
100
115
2
13
165
10
0.887
0.939
0.988
0.890
0.940
0.990
25
25
25
500
150
5
0.8
V
mV
µA
kΩ
µA
µA
V
V
nA
Celsius
Celsius
3
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