mic49200 Micrel Semiconductor, mic49200 Datasheet
mic49200
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mic49200 Summary of contents
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... The MIC49200 implements a dual supply configuration allowing for very low output impedance and very fast transient response. The MIC49200 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.4V to 6.5V and the bias supply requires between 3V and 6.5V for proper operation. The MIC49200 offers fi ...
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... Ordering Information Part Number Output Current RoHS Compliant MIC49200-1.0WR* 2A MIC49200-1.8WR* 2A MIC49200WR RoHS compliant with ‘high-melting solder’ exemption. Pin Configuration Pin Description Pin Number Pin Name Pin Function S-Pak Enable (Input): CMOS compatible input. Logic High = enable; Logic Low = shutdown ...
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Absolute Maximum Ratings Supply Voltage (V ) ................................................ 8V IN Bias Supply Voltage (V ) ..................................... 8V BIAS Enable Input Voltage (V )...................................... 8V EN Power Dissipation............................. Internally Limited (3) ESD Rating .........................................................3kV Electrical Characteristics T = 25°C with V ...
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Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating range. 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF. 4. ...
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Functional Diagram V / Fixed EN ADJ Adj. January 2006 Bandgap Enable 5 Ilimit R1 Fixed R2 V BIAS OUT M9999-011306 (408) 955-1690 ...
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Typical Characteristics Power Supply Rejection Ratio (Input Supply) 120 100 2A 80 100mA OUT V = 1.5V OUT BIAS C = 1µF OUT 0 0.01 0 ...
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Bias Current vs. Temperature OUT 1.5A 30 OUT OUT 1.5V OUT BIAS C = 1µF OUT 15 10 ...
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Reference Voltage vs. Bias Voltage 0.901 0.900 OUT V = 1.5V OUT C = 1µF OUT 0.899 3 3.5 4 4.5 5 5.5 6 6.5 BIAS VOLTAGE (V) Enble Threshold vs. Temperature 1.6 1.4 ...
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Functional Characteristics Line Transient ( 3.3V OUT IN V BIAS C OUT I OUT Time (100µs/div) Enable Turn-On Time (4µs/div) January 2006 ) 1.5V = 3.3V = 1µ ...
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... Bias Supply Voltage V , requiring relatively light current, provides power BIAS to the control portion of the MIC49200. V approximately 40mA for a 1.5A load current. Dropout conditions require higher currents. Most of the biasing current is used to supply the base current to the pass transistor. This allows the pass element to be driven into saturation thereby reducing the dropout to 400mV load current ...
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... Where V Enable The fixed output voltage versions of the MIC49200 feature an active high enable input (EN) that allows on-off control of the regulator. Supply currents reduce to “zero” when the device is in shutdown, with only microamperes of leakage current. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing ...
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Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...