MIC5305-1.5YD5 TR Micrel Inc, MIC5305-1.5YD5 TR Datasheet - Page 10
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MIC5305-1.5YD5 TR
Manufacturer Part Number
MIC5305-1.5YD5 TR
Description
150mA Cap Ultra Low Dropout High PSRR LDO Regulator ( )
Manufacturer
Micrel Inc
Datasheet
1.MIC5305-2.5YD5_TR.pdf
(12 pages)
Specifications of MIC5305-1.5YD5 TR
Regulator Topology
Positive Fixed
Voltage - Output
1.5V
Voltage - Input
2.25 ~ 5.5 V
Number Of Regulators
1
Current - Output
150mA
Current - Limit (min)
300mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-5, TSOT-5, TSOP-5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-1870-2
MIC5305-1.5YD5TR
MIC5305-1.5YD5TR
MIC5305-1.5YD5TR
MIC5305-1.5YD5TR
Table 1 shows junction-to-ambient thermal resistance for
the MIC5305 in the 6-pin 2mm × 2mm MLF
Substituting P
operating temperature will give the maximum operating
conditions for the regulator circuit. The junction-to-
ambient thermal resistance for the minimum footprint
(the minimum amount of copper that you can solder the
part to) is 93°C/W, from Table 1. The maximum power
dissipation must not be exceeded for proper operation.
For example, when operating the MIC5305-2.9BML at
an input voltage of 5.0V and 150mA load with a
Micrel, Inc.
June 2007
6-Pin 2x2 MLF
Package
Table 1. Thermal Resistance
D
®
for P
θ JA Recommended
Minimum Footprint
D(max)
93°C/W
and solving for the ambient
®
package.
2°C/W
θ JC
10
minimum
operating temperature T
Therefore, a 2.9V application at 150mA of output current
can accept an ambient operating temperature of 95.2°C
in a 6-pin 2mm x 2mm MLF
cussion of heat sinking and thermal effects on voltage
regulators, refer to the “Regulator Thermals” section of
Micrel’s Designing with Low-Dropout Voltage Regulators
handbook. This information can be found on Micrel's
website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
T
0.32W
A
= 95.2°C
footprint
=
125
93
°
layout,
°
C
C/W
A
−
can be determined as follows:
T
A
®
the
package. For a full dis-
maximum
M9999-062507
MIC5305
ambient