SP2996BEN-L Datasheet, PDF (2/9 Pages) Exar Corporation – 2 Amp DDR Bus Termination Regulator

SP2996B
2 Amp DDR Bus Termination Regulator
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
Supply Voltage .......................................... -0.3V to 7.0V
Junction Temperature Range..................-40°C to +125°C
Storage Temperature .............................. -65°C to 150°C
OPERATING RATINGS
Operating Temperature Range ................. -40°C to +85°C
Thermal Resistance θ_JA .....................................160°C/W
Thermal Resistance θ_JC ...................................... 40°C/W
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Ambient Temperature of T_A = 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at T_A = 25°C, and are provided
for reference purposes only. Unless otherwise indicated, V_IN = 2.5V, V_CNTL = 3.3V, V_REF = 0.5xV_IN, C_OUT = 10µF (ceramic),
T_A= 25°C.
Parameter
Input Voltage Range (DDR 1/2)
V_IN
Input Voltage Range (DDR 1/2)
V_CNTL
Output Voltage V_OUT
Output Offset Voltage V_OS
Load Regulation (DDR 1/2) ∆V_LOR
Quiescent Current I_Q
Operating Current of V_CNTL, I_CNTL
Bias Current of V_REF
Current Limit I_IL
Thermal Protection
Thermal Shutdown Temperature
T_SD
Thermal Shutdown Hysteresis
Shutdown Specifications
Shutdown Threshold V_TRIGGER
Min.
1.6
3.0
-20
2.2
125
0.8
Typ.
2.5/1.8
3.3
V_REF
10
10
8
3
3
150
30
Max.
3.6
+20
25
25
30
10
1
4.5
0.2
Units
V
V
V
mV
mV
mV
µA
mA
µA
A
°C
°C
V
Conditions
(note 4)
Keep V_CNTL≥V_IN on operation power on
and power off sequences
(note 4)
I_OUT = 0mA
I_OUT = 0mA
No load
I_OUT = 0.1mA to +2A
I_OUT = 0.1mA to -2A
V_REF < 0.2V, V_OUT = OFF
No load
V_REF = 1.25V
(note 3)
(note 4)
3.3V ≤ V_CNTL ≤ 5V, guaranteed by design
Guaranteed by design
Output ON
V_REF = 0V Æ 1.25V
Output OFF
V_REF = 1.25V Æ 0V
Note 1: V_OS offset is the voltage measurement defined as V_OUT subtracted from V_REF.
Note 2: Load regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Note 3: Current limit is measured by pulsing a short time.
Note 4: In order to safely operate your system, V_CNTL must be > V_IN.
© 2010 Exar Corporation
2/9
Rev. 2.0.0