LP2998 Datasheet, PDF (7/33 Pages) Intersil Corporation – DDR-II and DDR-I Termination Regulator

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LP2998, LP2998-Q1
SNVS521K – DECEMBER 2007 – REVISED AUGUST 2014
Electrical Characteristics (continued)
Typical limits tested at T_J = 25°C. Minimum and maximum limits apply over the full operating junction temperature range (T_J =
–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
V_TT Output Voltage Offset (V_REF –
V_TT) for DDR I ⁽³⁾
VOS_Vtt
V_TT Output Voltage Offset (V_REF –
V_TT) for DDR II ⁽³⁾
V_TT Output Voltage Offset (V_REF –
V_TT) for DDR III ⁽³⁾
I_Q
Z_VDDQ
I_SD
I_{Q_SD}
V_IH
V_IL
Iv
I_SENSE
T_SD
T_{SD_HYS}
Quiescent Current ⁽⁴⁾
VDDQ Input Impedance
Quiescent current in shutdown ⁽⁴⁾
Shutdown leakage current
Minimum Shutdown High Level
Maximum Shutdown Low Level
V_TT leakage current in shutdown
V_SENSE Input current
Thermal Shutdown ⁽⁵⁾
Thermal Shutdown Hysteresis
I_OUT = 0 A
I_OUT = –1.5 A
I_OUT = 1.5 A
I_OUT = 0 A
I_OUT = –0.5 A
I_OUT = 0.5 A
I_OUT = 0 A
I_OUT = ±0.2 A
I_OUT = ±0.4 A
I_OUT = ±0.5 A
I_OUT = 0 A
SD = 0 V
SD = 0 V
SD = 0 V
V_TT = 1.25 V
–30
0
30
–30
0
30
–30
0
30
–30
0
30
–30
0
30
mV
–30
0
30
–30
0
30
–30
0
30
–30
0
30
–30
0
30
320
500
µA
100
kΩ
115
150
µA
2
5
1.9
V
0.8
1
10
µA
13
nA
165
°C
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, T_J(MAX), the junction to ambient thermal
resistance, R_θJA, and the ambient temperature, T_A. Exceeding the maximum allowable power dissipation will cause excessive die
temperature and the regulator will go into thermal shutdown.
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