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L M March 2005 6 2 1 L LM2621 o w Low Input Voltage, Step-Up DC-DC Converter n n 1.09 mm Package Height p General Description n Up to 2 MHz Switching Frequency u The LM2621 is a high efficiency, step-up DC-DC swn 1.2V to 14V Input
in „Layout Step-Up Regler LM2621“ · Platinen · 07.12.2009 12:49
R3 33uF Diode GND Res2 2 EN Vin Rf2 500 6 VDD PGND 1 100K C6 3 5 GND Cap FREQ SGND GND 100nF Rfq LM2621MM BT1 300K GND Battery R4 C7 GND GND Res2 100K 0402, NPO, +/- 0.25pF 2.2nF GND C8 0402, X7R, +/- 10% 4.7pF 5 % / GND / r 50 Ohm RF Antenna + t F 3 n t H u C9 0 F 1 L . cu 4 9 i 1.5pF 1 5 0 U1 2 n L
in „LCD + nRF24L01 = EMV/HF Probleme?“ · HF, Funk und Felder · 22.11.2011 22:33
