TCR2LF series, TCR2LE series

2014-11-06

5

Application Note

1. Recommended Application Circuit

The figure above shows the recommended configuration for using a Low-Dropout regulator. Insert a capacitor at

VOUT and VIN pins for stable input/output operation. (Ceramic capacitors can be used).

2. Power Dissipation

Both unit and board-mounted power dissipation ratings for TCR2LF series and TCR2LE series are available in the

Absolute Maximum Ratings table.

Power dissipation is measured on the board shown below.

Testing Board of Thermal Resistance

CONTROL pin

connection

Operation

HIGH

ON

LOW

OFF

OPEN

OFF

SMV

ESV

*Board material: FR4

Board dimension: 30 mm × 30 mm × 0.8 mm

Copper area: 20 mm

2

*Board material: FR4 board

Board dimension: 25.4 mm × 25.4 mm × 1.6 mm

Copper area: 645 mm

2

VOUT

GND

VIN

CONTROL

NC

●

SMV

●

ESV

VOUT

GND VIN

CONTROL

NC

PD – Ta (SMV)

−40

0

0

40

120

80

200

400

600

800

①

Board dimension 25.4 mm x 25.4 mm, x

1.6 mm Copper area 645 mm2,

mounted on FR4 Board

②

Unit Rating

②

①

PD – Ta (ESV)

−40

0

0

40

120

80

100

200

300

400

①

②

①

Board dimension 30 mm x 30 mm,

x 0.8 mm Copper area 20 mm2,

mounted on Glass Epoxy Board

②

Unit Rating

Ambient Temperature Ta (°C)

Ambient Temperature Ta (°C)