TAR5S15U~TAR5S50U
Application Notes
1. Recommended Application Circuit
V
V
OUT
4
IN
5
CONTROL
Operation
HIGH
LOW
ON
OFF
1
2
3
A noise-damping capacitor should be connected between the NOISE pin and GND
for stable operation. The recommended value is higher than 0.0047 μF.
CONTROL
GND NOISE
The above figure shows the recommended application circuit for the TAR5SxxU. Capacitors should be
connected to V and V
for input/output stabilization.
IN
OUT
If on/off control is not required, it is recommended to connect the CONTROL pin (pin 1) to V
.
CC
2. Power Dissipation
The power dissipation rating (450 mW) is measured on a board shown below. More power can be safely
dissipated by reducing the input voltage, output current and/or ambient temperature. It is recommended to
use the TAR5SxxU at 70% to 80% of the absolute maximum power dissipation.
Thermal Resistance Evaluation Board
V
V
OUT
IN
C
IN
C
C
OUT
NOISE
Material: Glass epoxy
Dimensions: 30 mm × 30 mm
Copper pad area: 35 mm2, t = 0.8 mm
CONTROL GND
NOISE
5
2009-01-21