MIC5264-KKYML TR Micrel Inc, MIC5264-KKYML TR Datasheet - Page 10

• Manufacturer Part Number: MIC5264-KKYML TR
• Description: Dual UCap LDO In 2.5mm X 2.5mm MLFT( )
• Manufacturer: Micrel Inc

Specifications of MIC5264-KKYML TR

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.6V
• Voltage - Input: 2.7 ~ 5.5 V
• Voltage - Dropout (typical): 0.21V @ 150mA
• Number Of Regulators: 2
• Current - Output: 150mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLF®, QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1845-2; MIC5264-KKYMLTR; MIC5264-KKYMLTR

Substituting P
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction-to-
ambient thermal resistance for the minimum footprint is
63°C/W. The maximum power dissipation must not be
exceeded for proper operation.
For example, when operating the MIC5264PMYML at an
input voltage of 5.0V at 150mA on V
V
ambient operating temperature T
follows:
Micrel, Inc.
MIC5264 Junction-To-Ambient Thermal Resistance
May 2006
OUT2
2.5mm x 2.5mm
Package
MLF-10
with a minimum footprint layout, the maximum
D
for P
Thermal Resistance
D(max)
Minimum Footprint
θ
JA
Recommended
and solving for the ambient
75°C/W
A
can be determined as
OUT1
and 100mA on
2°C/W
θ
JC
10
Therefore, a 3.0V application at 150mA on Ch1 and 2.8V
at 100mA on Ch2 can accept an ambient operating
temperature of 92°C in a 10-pin 2.5mm x 2.5mm MLF
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” section of Micrel’s Designing with
Low-Dropout
information can be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
T
. 0
A
52
= 92.24°C
W
Voltage
=
⎛
⎜ ⎜
⎝
125
63
°
C
°
C
−
Regulators
T
A
⎞
⎟ ⎟
⎠
handbook.
[phone]
M9999-052406
MIC5264
This
®