LP3966ES-ADJ National Semiconductor, LP3966ES-ADJ Datasheet - Page 11

• Manufacturer Part Number: LP3966ES-ADJ
• Description: Linear Voltage Regulator IC
• Manufacturer: National Semiconductor

Specifications of LP3966ES-ADJ

• No. Of Pins: 5
• Output Current: 3A
• Peak Reflow Compatible (260 C): No
• Termination Type: SMD
• Current Rating: 3000A
• Output Voltage Max: 5V
• Leaded Process Compatible: No
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Applications Information
Sense Pin
In applications where the regulator output is not very close to
the load, LP3966 can provide better remote load regulation
using the SENSE pin. Figure 2 depicts the advantage of the
SENSE option. LP3963 regulates the voltage at the output
pin. Hence, the voltage at the remote load will be the regula-
tor output voltage minus the drop across the trace resis-
FIGURE 2. Improving remote load regulation using LP3966
(Continued)
FIGURE 1. Error Flag Operation
11
tance. For example, in the case of a 3.3V output, if the trace
resistance is 100m , the voltage at the remote load will be
3V with 3A of load current, I
voltage at the sense pin. Connecting the sense pin to the re-
mote load will provide regulation at the remote load, as
shown in Figure 2 . If the sense option pin is not required, the
sense pin must be connected to the V
LOAD
DS101267-7
. The LP3966 regulates the
OUT
DS101267-8
pin.
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