MIC5219-3.3BM5 Micrel Inc, MIC5219-3.3BM5 Datasheet
![no-image](/images/manufacturer_photos/0/4/434/micrel_inc_sml.jpg)
MIC5219-3.3BM5
Available stocks
Related parts for MIC5219-3.3BM5
MIC5219-3.3BM5 Summary of contents
Page 1
... Cellular telephones and battery-powered equipment • Consumer and personal electronics • PC Card V CC • SMPS post-regulator/dc-to-dc modules • High-efficiency linear power supplies ENABLE SHUTDOWN 3.3V Ultra-Low-Noise Regulator 1 MIC5219 and V regulation and switching PP MIC5219-3.3BM5 3.3V OUT 2 2.2µF tantalum 3 4 470pF MIC5219 Micrel ...
Page 2
... MIC5219 Ordering Information Part Number MIC5219-3.0BMM MIC5219-3.3BMM MIC5219-3.6BMM MIC5219-5.0BMM MIC5219BMM MIC5219-2.6BM5 MIC5219-2.7BM5 MIC5219-2.8BM5 MIC5219-2.9BM5 MIC5219-3.0BM5 MIC5219-3.3BM5 MIC5219-3.6BM5 MIC5219-5.0BM5 MIC5219BM5 Other voltages available. Consult Micrel for details. Pin Configuration OUT 3 BYP 4 MIC5219-x.xBMM MM8™ MSOP-8 Fixed Voltages OUT 3 ADJ 4 MIC5219BMM MM8™ MSOP-8 ...
Page 3
... BYP = 470pF 300 BYP 2.0 0.01 0. Micrel IN Max Units ppm/ C 0.05 %/V 0.1 0 175 mV 250 300 mV 400 500 mV 600 130 A 170 650 A 900 2 1000 mA %/W nV/ Hz nV/ Hz 0.4 V 0.18 V –1 A – MIC5219 ...
Page 4
... Thermal regulation is defined as the change in output voltage at a time “t” after a change in power dissipation is applied, excluding load or line regulation effects. Specifications are for a 500mA load pulse at V Note optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust) pin. BYP MIC5219 , and the ambient temperature The maximum allowable power – ...
Page 5
... FREQUENCY (Hz) Noise Performance 10 10mA OUT 1 0.1 0.01 0.001 OUT 0.0001 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E 100 10k 100k 1M 10M FREQUENCY (Hz) Dropout Voltage vs. Output Current 400 300 200 100 0 0 100 200 300 400 500 OUTPUT CURRENT (mA) MIC5219 ...
Page 6
... MIC5219 Dropout Characteristics 3.5 I =100 A L 3.0 2.5 2.0 1.5 1.0 0 vs. Supply Voltage MIC5219 I =100mA L I =500mA INPUT VOLTAGE (V) Ground Current 3.0 2.5 2.0 1.5 1.0 0 =500mA INPUT VOLTAGE (V) 6 Ground Current vs. Output Current 100 200 300 400 500 OUTPUT CURRENT (mA) Ground Current vs ...
Page 7
... July 2000 BYP BYP Bandgap Ref. V REF EN Current Limit Thermal Shutdown MIC5219-x.xBM5/MM GND Ultra-Low-Noise Fixed Regulator Bandgap Ref. V REF EN Current Limit Thermal Shutdown MIC5219BM5/MM [adj.] GND Ultra-Low-Noise Adjustable Regulator 7 OUT V OUT C OUT OUT V OUT R1 C OUT R2 C BYP (optional) Micrel MIC5219 ...
Page 8
... D Substituting P conditions that are critical to the application will give the maximum operating conditions for the regulator circuit. For example are operating the MIC5219-3.3BM5 at room temperature, with a minimum footprint layout, we can deter- mine the maximum input voltage for a set output current. P D(max) ...
Page 9
... For example, if the regulator is operating normally at 50mA, but for 12.5% of the time it operates at 500mA output, the total power dissipation of the part can be easily determined. First, calculate the power dissipation of the device at 50mA. We will use the MIC5219-3.3BM5 with 5V input voltage as our example ...
Page 10
... DUTY CYCLE (%) Ambient Figure 2. MIC5219-x.xBM5 (SOT-23-5) on 1-inch 10 100mA 8 200mA 6 300mA 4 400mA 2 500mA 100 DUTY CYCLE (%) Ambient Figure 3. MIC5219-x.xBMM (MSOP-8) on Minimum Recommended Footprint 10 200mA 8 300mA 6 400mA 4 500mA 100 DUTY CYCLE (%) Ambient Figure 4. MIC5219-x.xBMM (MSOP-8) on 1-inch MIC5219 10 8 100mA 6 200mA 4 300mA 2 400mA ...
Page 11
... BYP and GND to reduce output noise. Note that the minimum value of C capacitor is used. Adjustable Regulator Circuits Figure 7. Low-Noise Adjustable Voltage Regulator Figure 7 shows the basic circuit for the MIC5219 adjustable regulator. The output voltage is configured by selecting values for R1 and R2 using the following formula: V OUT Although ADJ is a high-impedance input, for best perfor- mance, R2 should not exceed 470k ...
Page 12
... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC5219 0.199 (5.05) ...