TK112xxB
DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)
1000
750
600
MOUNTED AS
SHOWN
MOUNTED AS
SHOWN
800
FREE AIR
600
400
200
0
450
300
FREE AIR
150
0
150
0
50
100
150
0
50
100
T (°C)
A
T
(°C)
A
SOT-23L POWER DISSIPATION CURVE
SOT-89 POWER DISSIPATION CURVE
SOT-89 BOARD LAYOUT
SOT-23L BOARD LAYOUT
APPLICATION NOTE
Copper pattern should be as large as possible. Power dissipation is 600 mW for SOT-23L and 900 mV for SOT-89. A
low Equivalent Series Resistance (ESR) capacitor is recommended. For low temperature operation, select a capacitor
with a low ESR at the lowest operating temperature to prevent oscillation, degradation of ripple rejection and increase
in noise. The minimum recommended capacitance is 2.2 µF.
October 1999 TOKO, Inc.
Page 17
TOKO [ TOKO, INC ]
