LP2996A Datasheet, PDF (6/29 Pages) Texas Instruments – DDR Termination Regulator

LP2996A
SNOSCY7 – JUNE 2014
www.ti.com
Electrical Characteristics (continued)
Specifications are for T_J = 25°C and apply over the full Operating Temperature Range (T_J = 0°C to +125°C)⁽¹⁾. Unless
otherwise specified, AVIN = PVIN = 2.5V, VDDQ = 2.5V⁽²⁾.
PARAMETER
V_TT Output Voltage (DDR III) ⁽³⁾
TEST CONDITIONS
I_OUT = 0A, AVIN = 2.5 V
PVIN = VDDQ = 1.35V
MIN
0.656
TYP
0.677
MAX UNIT
0.698
PVIN = VDDQ = 1.5 V
0.731
0.752
0.773
PVIN = VDDQ = 1.6 V
0.781
0.802
0.823
I_OUT = +0.2A, AVIN = 2.5V
PVIN = VDDQ = 1.35V
0.667
0.688
0.710
I_OUT = -0.2A, AVIN = 2.5V
PVIN = VDDQ = 1.35V
I_OUT = +0.4 A, AVIN = 2.5 V
PVIN = VDDQ = 1.5 V
0.641
0.740
0.673
0.763
0.694
V
0.786
I_OUT = –0.4 A, AVIN = 2.5 V
PVIN = VDDQ = 1.5 V
0.731
0.752
0.773
I_OUT = +0.5A, AVIN = 2.5 V
PVIN = VDDQ = 1.6 V
0.790
0.813
0.836
I_OUT = -0.5 A, AVIN = 2.5 V
PVIN = VDDQ = 1.6 V
0.781
0.802
0.823
VOS_Vtt
V_TT Output Voltage Offset (V_REF –
V_TT) for DDR I ⁽³⁾
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, θ_JA, 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.
6
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