LP2995M-EVAL National Semiconductor, LP2995M-EVAL Datasheet - Page 9

• Manufacturer Part Number: LP2995M-EVAL
• Description: BOARD EVALUATION LP2995M
• Manufacturer: National Semiconductor

Specifications of LP2995M-EVAL

• Channels Per Ic: 1 - Single
• Current - Output: 1.5A
• Voltage - Input: 2.2 ~ 5.5V
• Regulator Type: Positive Fixed
• Operating Temperature: 0°C ~ 125°C
• Board Type: Fully Populated
• Utilized Ic / Part: LP2995
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Voltage - Output: -
• Lead Free Status / Rohs Status: Not Compliant

Typical Application Circuits
The typical application circuit used for SSTL-2 termination
schemes with DDR-SDRAM can be seen in
For SSTL-3 and other applications it may be desirable to
change internal reference voltage scaling from VDDQ * 0.5.
An external resistor in series with the VDDQ pin can be used
to lower the reference voltage. Internally two 50 kΩ resistors
Another application that is sometimes required is to increase
the V
This can be accomplished independently of V
TT
output voltage from the scaling factor of VDDQ * 0.5.
Figure
FIGURE 5. SSTL-2 Implementation
FIGURE 6. SSTL-3 Implementation
REF
by using a
5.
FIGURE 7.
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set the output V
a 11.1 kΩ external resistor will change the internal reference
voltage causing the two outputs to track VDDQ * 0.45. An
implementation of this circuit can be seen in
resistor divider network between V
example of this circuit can be seen in
TT
to be equal to VDDQ * 0.5. The addition of
20039306
20039307
20039303
TT
, V
Figure
SENSE
Figure
and Ground. An
7.
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6.