MIC2141-BM5 MICREL [Micrel Semiconductor], MIC2141-BM5 Datasheet
MIC2141-BM5
Related parts for MIC2141-BM5
MIC2141-BM5 Summary of contents
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... A shutdown current • quiescent current • 1.24V bandgap reference • typical output current 1mA to 10mA • SOT-23-5 Package Applications • LCD bias supply • CCD digital camera supply Ordering Information Part Number MIC2141-BM5 10 H Variable V OUT MIC2141 ...
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... MIC2141 Pin Configuration Pin Description Pin Number Pin Name GND MIC2141 SW GND Part Identification SAxx SOT-23-5 (BM) Pin Function Input: +2.5V to +14V supply for internal circuity. Ground: Return for internal circuitry and internal MOSFET (switch) source. ...
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... V = 12V must .................................... +2.5V to +14V IN ) ...................................... +3V to +22V SW ) ......................... – + ................... – +125 ...................................................... 220 C/W JA +85 C; unless noted. A Min Typ 2 4.85 5.0 14.55 15.0 19.4 20.0 0.25 0.05 4 2.5 300 330 15 18 – 200mV. Micrel Max Units 14 V 100 A mV 5.15 V 15. 0.2 %/V 360 kHz % MIC2141 ...
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... CONTROL VOLTAGE (V) Oscillator Frequency vs. Input Voltage 400 380 360 340 320 300 INPUT VOLTAGE (V) 350 340 330 320 310 300 -40 -20 MIC2141 Control Voltage vs. Output Voltage 2. 3. CONTROL VOLTAGE (V) Load Regulation 15 ...
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... Switch Voltage Drop vs. Input Voltage 900 800 I = 100mA DS 700 600 500 400 300 200 100 INPUT VOLTAGE (V) Ripple Voltage vs. Input Voltage 100 15V 50 OUT I = 1mA INPUT VOLTAGE (V) MIC2141 ...
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... Overview This MIC2141 is a fixed-duty-cycle, constant-frequency, gated- oscillator, micropower, switch-mode power supply controller. Quiescent current for the MIC2141 is only the switch off state, and since a MOSFET output switch is used, addi- tional current needed for switch drive is minimized. Efficien- cies above 85% throughout most operating conditions can be realized ...
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... MIC2141 ...
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... BAT54HT1 V IN MIC2141 C2 34. 0.1 F 25V GND C 121k Return Figure 2. Gain-Boost Configuration L1 4.7 H MBR0530 CR2 C4 MIC2141 1N4148 1N4148 0 25V GND Figure 3. Bootstrap Configuration IN(min) ON(min) MAX ...
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... Figure 6. Inductor Selection for Use for Li-ion battery 4 100 H 120 H 150 H 180 H 220 OUTPUT VOLTAGE (V) IN Micrel = 3. 3.3V MIC2141 ...
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... 100 H 120 H 150 H 180 H 220 OUTPUT VOLTAGE (V) Figure7. Inductor Selection for V MIC2141 100 100 H 120 H 150 H 180 H 220 H 270 H 330 H 390 H 470 Figure 8. Inductor Selection for V ...
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... MIC2141 June 2000 100 100 H 120 H 150 H 180 H 10 220 H 270 H 330 H 390 H 470 OUTPUT VOLTAGE (V) Figure 9. Inductor Selection for 12V 12V IN Micrel MIC2141 ...
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... MIC2141 1000 900 800 700 600 500 400 300 200 100 0 0 Figure 10. Peak Inductor Current vs. Input Voltage MIC2141 INPUT VOLTAGE ( 100 H 120 H 150 H 180 H 220 H 270 H ...
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... MIC2141 Micrel ) IN(min) ...
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... Table 4b. Typical Configurations for Wide-Range Inputs—5V to 15V Minimum Input MIC2141 I L1 CR1 OUT(max) 17mA 8.2 H MBR0530 15mA 10 H MBR0530 10mA 12 H MBR0530 5mA 27 H BAT54 1mA 120 H ...
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... BAT54 253mA BAT54 253mA BAT54 253mA BAT54 253mA BAT54 253mA MB0530 467mA MB0530 467mA MB0530 467mA MB0530 174mA MB0530 511mA BAT54 196mA 4.5V to 15V 8.2 H 6.8 H 6 Micrel MIC2141 ...
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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. MIC2141 1.75 (0.069) 3.00 (0.118) 1 ...