MIC5216-3.8YM5 TR Micrel Inc, MIC5216-3.8YM5 TR Datasheet - Page 11
![500mA Peak 1% Low Noise LDO W/Flag ( )](/photos/6/57/65771/576-sot-23-5_sml.jpg)
MIC5216-3.8YM5 TR
Manufacturer Part Number
MIC5216-3.8YM5 TR
Description
500mA Peak 1% Low Noise LDO W/Flag ( )
Manufacturer
Micrel Inc
Datasheet
1.MIC5216-3.3YM5_TR.pdf
(13 pages)
Specifications of MIC5216-3.8YM5 TR
Regulator Topology
Positive Fixed
Voltage - Output
3.8V
Voltage - Input
Up to 12V
Voltage - Dropout (typical)
0.3V @ 500mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MIC5216-3.8YM5TR
MIC5216-3.8YM5TR
MIC5216-3.8YM5TR
The total power dissipation of the device under these
conditions is the sum of the two power dissipation
figures.
The total power dissipation of the regulator is less than
the maximum power dissipation of the SOT-23-5
package at room temperature, on a minimum footprint
board and therefore would operate properly.
Multilayer boards with a ground plane, wide traces near
the pads, and large supply-bus lines will have better
thermal conductivity.
For additional heat sink characteristics, please refer to
Micrel Application Hint 17, “Designing P.C. Board Heat
Sinks”, included in Micrel’s Databook. For a full
discussion of heat sinking and thermal effects on voltage
regulators, refer to Regulator Thermals section of
Micrel’s Designing with Low-Dropout Voltage Regulators
handbook.
Micrel, Inc.
March 2007
P
P
P
D(total)
D(total)
D(total)
a. 25
a. 25
= P
= 151mW + 119mW
= 270mW
D
°
°
C Ambient
C Ambient
× 50mA + P
Figure 3. MIC5216-x.xBMM (MSOP-8) on Minimum Recommended Footprint
Figure 4. MIC5216-x.xBMM (MSOP-8) on on 1-inch
D
× 500mA
b. 50
b. 50
°
°
C Ambient
C Ambient
11
Fixed Regulator Circuits
Figure 5 shows a basic MIC5216-x.xBMx fixed-voltage
regulator circuit. A 1µF minimum output capacitor is
required for basic fixed-voltage applications.
The flag output is an open-collector output and requires
a pull-up resistor to the input voltage. The flag indicates
an undervoltage condition on the output of the device.
Figure 5. Low-Noise Fixed Voltage Regulator
V
IN
2
Copper Cladding
100k
IN
EN
MIC5216
GND
c. 85
c. 85
OUT
FLG
°
°
C Ambient
C Ambient
1µF
V
M9999-032307
OUT
MIC5216