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LP2997M/NOPB 数据表(PDF) 3 Page - Texas Instruments

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部件名 LP2997M/NOPB
功能描述  DDR-II Termination Regulator
PDF  21 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LP2997M/NOPB 数据表(HTML) 3 Page - Texas Instruments

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LP2997
www.ti.com
SNVS295F – MAY 2004 – REVISED APRIL 2013
Electrical Characteristics
Specifications with standard typeface are for TJ = 25°C and limits in boldface type apply over the full Operating
Temperature Range (TJ = 0°C to +125°C)
(1). Unless otherwise specified, AVIN = 2.5V, PVIN = 1.8V, VDDQ = 1.8V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VREF
VREF Voltage
PVIN = VDDQ = 1.7V
0.837
0.860
0.887
PVIN = VDDQ = 1.8V
0.887
0.910
0.937
V
PVIN = VDDQ = 1.9V
0.936
0.959
0.986
ZVREF
VREF Output Impedance
IREF = -30 to +30 μA
2.5
k
Ω
VTT
VTT Output Voltage
IOUT = 0A
PVIN = VDDQ = 1.7V
0.822
0.856
0.887
PVIN = VDDQ = 1.8V
0.874
0.908
0.939
PVIN = VDDQ = 1.9V
0.923
0.957
0.988
V
IOUT = ±0.5A
(2)
PVIN = VDDQ = 1.7V
0.828
0.856
0.890
PVIN = VDDQ = 1.8V
0.878
0.908
0.940
PVIN = VDDQ = 1.9V
0.928
0.957
0.990
VosTT/VTT
VTT Output Voltage Offset
IOUT = 0A
-25
0
25
(VREF-VTT)
IOUT = -0.5A
-25
0
25
mV
IOUT = +0.5A
-25
0
25
IQ
Quiescent Current(3)
IOUT = 0A
(3)
320
500
µA
ZVDDQ
VDDQ Input Impedance
100
k
Ω
ISD
Quiescent Current in
SD = 0V
115
150
µA
Shutdown(3)
IQ_SD
Shutdown Leakage Current SD = 0V
2
5
µA
VIH
Minimum Shutdown High
1.9
V
Level
VIL
Maximum Shutdown Low
0.8
V
Level
ISENSE
VSENSE Input Current
13
nA
TSD
Thermal Shutdown
See(4)
165
Celsius
TSD_HYS
Thermal Shutdown
10
Celsius
Hysteresis
(1)
Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using
Statistical Quality Control (SQC) methods. The limits are used to calculate Average Outgoing Quality Level (AOQL).
(2)
VTT load regulation is tested by using a 10 ms current pulse and measuring VTT.
(3)
Quiescent current defined as the current flow into AVIN.
(4)
The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction to ambient thermal
resistance,
θJA, and the ambient temperature, TA. Exceeding the maximum allowable power dissipation will cause excessive die
temperature and the regulator will go into thermal shutdown.
Copyright © 2004–2013, Texas Instruments Incorporated
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