Pin Descriptions for TO-263 (TS) and TO-263 THIN (TJ) Packages

Pin #

Designation

Function

1

EN

Enable (LP38501 only). Pull high to enable the output, low to disable the output. This pin has

no internal bias and must be either tied to the input voltage, or actively driven.

N/C

In the LP38503, this pin has no internal connections. It can be left floating or used for trace

routing.

2

IN

Input Supply Pin

3

GND

Ground

4

OUT

Regulated Output Voltage Pin

5

ADJ

Sets output voltage

DAP

DAP

The DAP is used as a thermal connection to remove heat from the device to the circuit board

copper clad area which acts as the heatsink. The DAP is electrically connected to the

backside of the die. The DAP must be connected to ground potential, but can not be used as

the only ground connection.

Ordering Information

TABLE 1. Package Marking and Ordering Information

Output

Voltage

Order Number

Package Type

Package Marking

Supplied As:

ADJ

LP38501TSX-ADJ

TO-263

LP38501TS-ADJ

Tape and Reel of 500 Units

LP38501TS-ADJ

LP38501TS-ADJ

Rail of 45 Units

LP38503TSX-ADJ

LP38503TS-ADJ

Tape and Reel of 500 Units

LP38503TS-ADJ

LP38503TS-ADJ

Rail of 45 Units

ADJ

LP38501TJ-ADJ

TO-263 THIN

LP38501TJ-ADJ

Tape and Reel of 1000 Units

LP38503TJ-ADJ

LP38503TJ-ADJ

Tape and Reel of 1000 Units

LP38501ATJ-ADJ

LP38501ATJ-AD

Tape and Reel of 1000 Units

LP38503ATJ-ADJ

LP38503ATJ-AD

Tape and Reel of 1000 Units

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