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LP2998MA/NOPB 数据表(PDF) 7 Page - Texas Instruments

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部件名 LP2998MA/NOPB
功能描述  DDR Termination Regulator
PDF  33 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LP2998MA/NOPB 数据表(HTML) 7 Page - Texas Instruments

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LP2998, LP2998-Q1
www.ti.com
SNVS521K – DECEMBER 2007 – REVISED AUGUST 2014
Electrical Characteristics (continued)
Typical limits tested at TJ = 25°C. Minimum and maximum limits apply over the full operating junction temperature range (TJ =
–40°C to 125°C).
(1) Unless otherwise specified, AVIN = PVIN = 2.5 V, VDDQ = 2.5 V.(2)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IOUT = 0 A
–30
0
30
VTT Output Voltage Offset (VREF –
IOUT = –1.5 A
–30
0
30
VTT) for DDR I
(3)
IOUT = 1.5 A
–30
0
30
IOUT = 0 A
–30
0
30
VTT Output Voltage Offset (VREF –
IOUT = –0.5 A
–30
0
30
VTT) for DDR II
(3)
VOSVtt
mV
IOUT = 0.5 A
–30
0
30
IOUT = 0 A
–30
0
30
IOUT = ±0.2 A
–30
0
30
VTT Output Voltage Offset (VREF –
VTT) for DDR III
(3)
IOUT = ±0.4 A
–30
0
30
IOUT = ±0.5 A
–30
0
30
IQ
Quiescent Current (4)
IOUT = 0 A
320
500
µA
ZVDDQ
VDDQ Input Impedance
100
k
Ω
ISD
Quiescent current in shutdown (4)
SD = 0 V
115
150
µA
IQ_SD
Shutdown leakage current
SD = 0 V
2
5
VIH
Minimum Shutdown High Level
1.9
V
VIL
Maximum Shutdown Low Level
0.8
SD = 0 V
Iv
VTT leakage current in shutdown
1
10
µA
VTT = 1.25 V
ISENSE
VSENSE Input current
13
nA
TSD
Thermal Shutdown (5)
165
°C
TSD_HYS
Thermal Shutdown Hysteresis
10
(4)
Quiescent current defined as the current flow into AVIN.
(5)
The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction to ambient thermal
resistance, RθJA, 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 © 2007–2014, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: LP2998 LP2998-Q1



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