RT9014 RICHTEK [Richtek Technology Corporation], RT9014 Datasheet - Page 11

• Manufacturer Part Number: RT9014
• Description: Ultra Low Noise 300mA Dual LDO Regulator with POR, NMOS Driver and Requiring No Bypass Capacitor
• Manufacturer: RICHTEK [Richtek Technology Corporation]

For recommended operating conditions specification of
RT9014/A, where T
temperature of the die (125°C) and T
ambient temperature. The junction to ambient thermal
resistance (θ
package is 108°C/W on the standard JEDEC 51-3 single-
layer thermal test board. The maximum power dissipation
at T
P
WDFN-10L
The maximum power dissipation depends on operating
ambient temperature for fixed T
resistance θ
derating curves allows the designer to see the effect of
rising ambient temperature on the maximum power
allowed.
DS9014/A-08 August 2007
D(MAX)
Figure 3. Derating
A
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
= 25°C can be calculated by following formula :
1
0
0
= ( 125°C − 25°C ) / 108 = 0.926W for
3x3 packages
JA
JA
. For RT9014/A packages, the Figure 3 of
is layout
25
Ambient Temperature (°C)
Curves for RT9014/A Packages
J(MAX)
dependent) for WDFN-10L
50
is the maximum junction
WDFN-10L 3x3
75
J(MAX)
A
is the operated
100
and thermal
Preliminary
125
3x3
RT9014/A
www.richtek.com
11