MIC5219-2.8BM5 Micrel Inc, MIC5219-2.8BM5 Datasheet

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... It features a 500mA peak output rating. Continuous output current is limited only by package and layout. The MIC5219 can be enabled or shut down by a CMOS or TTL compatible signal. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life ...

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... 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 ...

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... 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 ...

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... 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 – ...

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... 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 ...

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... 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 ...

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... 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 ...

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... The capacitor can be reduced to 0.47 F for current below 10mA or 0.33 F for currents below 1mA. No-Load Stability The MIC5219 will remain stable and in regulation with no load (other than the internal voltage divider) unlike many other voltage regulators. This is especially important in CMOS RAM keep-alive applications ...

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... July 2000 Figures 3 and 4 show safe operating regions for the MIC5219- x.xBMM, the power MSOP package part. These graphs show three typical operating regions at different tempera- tures. The lower the temperature, the larger the operating region ...

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... 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 ...

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... 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 ...

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... 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) ...