MIC5219-3.3YM5 Micrel Inc, MIC5219-3.3YM5 Datasheet
MIC5219-3.3YM5
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MIC5219-3.3YM5 Summary of contents
Page 1
... 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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... MIC5219-3.1YM5 MIC5219-3.1YM5 MIC5219-3.1YM5 MIC5219-3.0BM5 MIC5219-3.0BM5 MIC5219-3.0BM5 MIC5219-3.0YM5 MIC5219-3.0YM5 MIC5219-3.0YM5 MIC5219-3.0BML MIC5219-3.0BML MIC5219-3.0BML MIC5219-3.0YML MIC5219-3.0YML MIC5219-3.0YML MIC5219-3.3BM5 MIC5219-3.3BM5 MIC5219-3.3BM5 MIC5219-3.3YM5 MIC5219-3.3YM5 MIC5219-3.3YM5 MIC5219-3.3BML MIC5219-3.3BML MIC5219-3.3BML MIC5219-3.3YML MIC5219-3.3YML MIC5219-3.3YML MIC5219-3.6BM5 MIC5219-3.6BM5 MIC5219-3.6BM5 MIC5219-3.6YM5 MIC5219-3.6YM5 MIC5219-3.6YM5 MIC5219-5.0BM5 MIC5219-5.0BM5 MIC5219-5.0BM5 MIC5219-5.0YM5 MIC5219-5.0YM5 MIC5219-5.0YM5 MIC5219BM5 MIC5219BM5 ...
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... MIC5219 Pin Description Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. Pin No. MLF™-6 MLF™-6 MLF™-6 MLF™-6 MSOP-8 MSOP-8 MSOP-8 MSOP-8 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23 5–8 5–8 5–8 5–8 5– ...
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... MIC5219 Absolute Maximum Ratings Supply Input Voltage (V ) ..............................–20V to +20V IN Power Dissipation (P ) ............................. Internally Limited D Junction Temperature (T ) ........................ –40°C to +125°C J Storage Temperature (T ) ........................ –65°C to +150°C S Lead Temperature (Soldering, 5 sec.) ....................... 260°C Electrical Characteristics 1.0V 4.7µ OUT OUT OUT Symbol Symbol ...
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... MIC5219 Notes: 1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifi cations do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T the junction-to-ambient thermal resistance, θ ...
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... MIC5219 Typical Characteristics Power Supply Rejection Ratio OUT -20 -40 -60 - 100µA OUT C = 1µF OUT -100 1k 10k 100k 1M 10M 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 10 100 FREQUENCY (Hz) Power Supply Rejection Ratio -20 OUT -40 - 100µA OUT - 2.2µF OUT C = 0.01µF ...
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... MIC5219 Dropout Characteristics 3 =100µA 3.0 2.5 2.0 1 =100mA 1 =500mA 0 INPUT VOLTAGE (V) January 2005 Ground Current vs. Output Current 100 200 300 400 500 OUTPUT CURRENT (mA) Ground Current vs. Supply Voltage 3.0 2.5 2.0 1.5 I =100 mA L 1.0 0 =100µ INPUT VOLTAGE (V) 7 Micrel Ground Current vs ...
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... MIC5219 Block Diagrams (optional M0371-121003 Bandgap Ref Current Limit Thermal Shutdown MIC5219-x.xBM5/M M GND Ultra-Low-Noise Fixed Regulator OUT IN Bandgap Ref Current Limit Thermal Shutdown MIC5219BM5/MM [adj.] GND Ultra-Low-Noise Adjustable Regulator 8 OUT V OUT C OUT V OUT OUT (optional) Micrel January 2005 ...
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... The capacitor can be reduced to 0.47µF for current below 10mA, or 0.33µF 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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... This is easily proved with some thermal calculations look at a specifi c example, it may be easier to follow. The MIC5219 can be used to provide up to 500mA continuous output current. First, calculate the maximum power dissipa- tion of the device, as was done in the thermal considerations section. Worst case thermal resistance (θ ...
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... DUTY CYCLE (%) a. 25°C 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 (%) a. 25°C Ambient Figure 3. MIC5219-x.xBMM (MSOP-8) on Minimum Recommended Footprint 10 200mA 8 300mA 6 400mA 4 500mA 100 DUTY CYCLE (%) a. 25°C Ambient Figure 4. MIC5219-x.xBMM (MSOP-8) on 1-inch January 2005 10 ...
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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 confi gured by selecting values for R1 and R2 using the following formula: V OUT ...
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... MIC5219 Package Information January 2005 8-Pin MSOP (MM) SOT-23-5 (M5) 13 Micrel M0371-121003 ...
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... MIC5219 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifi cations at any time without notifi cation to the customer. ...