LP38512TS-1.8EV National Semiconductor, LP38512TS-1.8EV Datasheet - Page 2

• Manufacturer Part Number: LP38512TS-1.8EV
• Description: BOARD EVAL FOR LP38512TS-1.8
• Manufacturer: National Semiconductor

Specifications of LP38512TS-1.8EV

• Channels Per Ic: 1 - Single
• Voltage - Output: 1.8V
• Current - Output: 1.5A
• Voltage - Input: 2.25 ~ 5.5V
• Regulator Type: Positive Fixed
• Operating Temperature: -40°C ~ 125°C
• Board Type: Fully Populated
• Utilized Ic / Part: LP38512
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
The ERROR Flag pin must be connected to ground if this
function is not used.
The timing diagram in Figure 4 shows the relationship be-
tween the ERROR flag and the output voltage when the pull-
up resistor is connected to the output voltage pin.
The timing diagram in Figure 5 shows the relationship be-
tween the ERROR flag and the output voltage when the pull-
up resistor is connected to the input voltage pin.
Power Dissipation
The TO-263 package alone has a junction to ambient thermal
resistance (θ
LP38512TS evaluation board the θ
30°C/W.
Although there is only approximately 0.28 square inches of
copper area immediately under the tab, the top copper sur-
face area is extended to additional copper area on the bottom
of the board by nine thermal vias.
With the 30°C/W thermal rating the LP38512TS evaluation
board will deliver the rated 3A output current if V
V
OUT
= 1.8V, and T
JA
) rating of 60°C/W. When mounted on the
A
≤
25°C.
JA
FIGURE 4. ERROR Flag when Pull-Up is from V
rating is approximately
FIGURE 5. ERROR Flag when Pull-Up is from V
IN
= 2.5V,
2
FIGURE 3. Maximum Power Dissipation vs. Ambient
OUT
IN
Temperature
30028308
30028307
30028306