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MIC23099 Datasheet(PDF) 7 Page - Micrel Semiconductor |
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MIC23099 Datasheet(HTML) 7 Page - Micrel Semiconductor |
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7 / 26 page  Micrel, Inc. MIC23099 Electrical Characteristics (7) (Continued) VIN = VEN = +1.25V; VOUT1 = +1.8V; VOUT2 = 1.0V; LOUT1 = 6.8µH; LOUT2 = 4.7µH; COUT1 = 47µF; COUT2 = 10µF; TA = 25°C, unless otherwise noted. Bold values indicate –40°C ≤ TJ ≤ +125°C. Parameter Test Conditions Min. Typ. Max. Units Buck Buck Reference (FB2) Feedback Regulation Voltage Vout1 = 1.8V to 3.3V IOUT2 = 6mA to 30mA; (±3.5%) 0.579 0.6 0.621 V FB Bias Current VFB2 = 0.6V 1 500 nA Soft-Start Time VOUT2: 10% to 90% of target value IOUT2 = 0mA; COUT2 = 10µF 0.1 ms Buck Internal MOSFETs High-Side On-Resistance ISW2 = 100mA; VOUT1 = 1.8V 560 mΩ Low-Side On-Resistance ISW2 = -100mA; VOUT1 = 1.8V 380 mΩ Leakage Current into SW2 VOUT1 = 3.3V, VSW2 = 3.3V, VEN = 0V, VOUT2 = 3.3V 0.01 2 µA Leakage Current out of SW2 VOUT1 = 3.3V, VSW2 = 0V, VEN = 0V, VOUT2=0V 0.01 0.5 µA Anti-Ringing Resistance 80 140 Ω Buck Switching Frequency Minimum Switching Frequency (8) POUT2 = 8mW (PFM Mode) 80 kHz Maximum Duty Cycle VFB2 = 0.5V 100 % Buck Current Limit Maximum Output Current 30 mA Current-Limit Threshold (PMOS) VFB2 = 0.5V 80 120 mA Buck Power Supply Rejection PSRR (ΔVOUT1/ΔVOUT2) ΔVOUT1 = 200mVp-p, f = 217Hz, IOUT2 = 10mA 50 dB PSRR (ΔVOUT1/ΔVOUT2) ΔVOUT1 = 200mVp-p, f = 1.0kHz, IOUT2 = 10mA 50 dB PSRR (ΔVOUT1/ΔVOUT2) ΔVOUT1 = 200mVp-p, f = 20kHz, IOUT2 = 10mA 42 dB May 27, 2014 7 Revision 1.2 |
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Similar Description - MIC23099 |
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