Electronic Components Datasheet Search |
|
MIC5314-F5YMT Datasheet(PDF) 11 Page - Micrel Semiconductor |
|
MIC5314-F5YMT Datasheet(HTML) 11 Page - Micrel Semiconductor |
11 / 14 page Micrel, Inc. MIC5314 July 2008 11 M9999-070208-A be determined using the equation: PD = (VIN – VOUT1) IOUT1 + (VIN – VOUT2) I OUT2 + VBIAS IGND Because this device is CMOS and the ground current is typically <100µA over the load range, the power dissipation contributed by the ground current is < 1% and can be ignored for this calculation. PD = (1.8V – 1.5V) × 300mA + (1.8V – 1.0V) × 300mA PD = 0.33W To determine the maximum ambient operating temperature of the package, use the junction-to-ambient thermal resistance of the device and the following basic equation: ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ − = JA A J(MAX) D(MAX) θ T T P TJ(max) = 125°C, the maximum junction temperature of the die. The junction-to-ambient thermal resistance for the minimum footprint, is θJA = 70°C/W. Substituting PD for PD(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. The maximum power dissipation must not be exceeded for proper operation. For example, when operating the MIC5314-FCYMT at an input voltage of 1.8V and 300mA, loads at each output with a minimum footprint layout, the maximum ambient operating temperature TA can be determined as follows: 0.33W = (125°C – TA)/(70°C/W) TA = 101.9°C 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 Voltage Regulators handbook. This information can be found on Micrel's website at: http://www.micrel.com/_PDF/other/LDOBk_ds.pdf |
Similar Part No. - MIC5314-F5YMT |
|
Similar Description - MIC5314-F5YMT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |