MIC2142YM5 TR Micrel Inc, MIC2142YM5 TR Datasheet

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... EN GND 5 2 Typical Configuration Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( October 2007 Features • 2.2V to 16V input voltage • 22V output voltage • 330kHz switching frequency • 0.1µA shutdown current • 85µA quiescent current • ...

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Micrel, Inc. Ordering Information Part Number Standard Pb-Free MIC2142BM5 MIC2142YM5 * Under bar symbol (_) may not be to scale. Pin Configuration 5-Pin SOT23 (BM5) Pin Description Pin Number Pin Name 1 VCC 2 GND ...

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Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V )......................................................18V CC Switch Voltage (V )......................................................24V SW (3) Enable Pin Voltage (V ) .............................................18V EN Feedback Voltage ( Adjustable Version.....................................................8V Ambient Storage Temperature (T (4) ESD Rating Electrical Characteristics V ...

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Micrel, Inc. Typical Characteristics Quiescent Current vs. Input Voltage 350 OUT 300 250 200 150 100 INPUT VOLTAGE (V) Output Ripple vs. Input Voltage 1200 I ...

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Micrel, Inc. Typical Characteristics (cont.) R vs. DS(ON) Temperature 7 V =3. 4. -50 -30 - 110 TEMPERATURE ( °C) October 2007 Timing Characteristics ...

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Micrel, Inc. Functional Diagram Bandgap Reference EN Shutdown FB MIC2142 Functional Description This MIC2142 is a fixed duty cycle, constant frequency, gated oscillator, micropower, switch-mode power supply controller. Quiescent current for the MIC2142 is only 85µA in the switch off ...

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Micrel, Inc. Application Information Pre-designed circuit information is at the end of this section. Component Selection Resistive Divider (Adjustable Version) The external resistive divider should divide the output volt-age down to the nominal reference voltage. Current drawn through this resistor ...

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Micrel, Inc. 75°C 25°C Room V V Temp. FWD FWD Diode at at Leakage 100mA 100mA at 15V MBR0530 0.275V 0.325V 2.5µA 0.6V 25nA 1N4148 0.95V (175°C) (20V) 0.4V 10nA BAT54 0.45V (85°C) (25V) 0.54V BAT85 0.56V 0.4µA (85°C) Table ...

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Micrel, Inc. For additional pre-designed circuits, see Table 4. (from controller) Figure 3. Series White LED Driver with PWM Dimming Control SHTDWN GND DAC Figure 4. Series White LED Driver with Analog Dimming Control October 2007 L1 CR1 47µH MBR0530 ...

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Micrel, Inc. Figure 5. Parallel White LED Driver with Analog Dimming Control 10µF V INRTN October 2007 L1 CR1 10µH V BAT54HT1 IN U1 MIC2142 GND 2 EN VCC 5 1 Figure 6. Handheld LCD ...

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Micrel, Inc IN(min) IN(max) 2.5V 3.0V 2.5V 4.5V 2.5 11.5 4.7 2.5 14.5 4.7 2.5 4.7 2.5 4.7 3.0 4.7 3.0 8.5 4.7 4.7 3.0 14.5 3.0 4.7 3.0 4.7 3.0 4.7 5.0 8.5 5.0 11.5 5.0 14.5 ...

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Micrel, Inc 3.3V±5% 12V 5V±5% 12V 15V 12V±5% 15V 20V 15V±5% 20V Table 5. Typical Maximum Power Configurations for Regulated Inputs V OUT V (V) IN 2 ...

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Micrel, Inc. Inductor Selection Guides Figure 7. Inductor Selection for V October 2007 = 2.5V Figure 8. Inductor Selection for MIC2142 = 3.0V IN M9999-102507 ...

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Micrel, Inc. Figure 9. Inductor Selection for V October 2007 = 5V Figure 10. Inductor Selection for MIC2142 = 9V IN M9999-102507 ...

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Micrel, Inc. Figure 11. Inductor Selection for V October 2007 = 12V Figure 8. Inductor Selection for MIC2142 IN = 15V IN M9999-102507 ...

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Micrel, Inc. October 2007 Figure 13. Peak Inductor Current vs. Input Voltage 16 MIC2142 M9999-102507 ...

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Micrel, Inc. 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. ...