DC1223A-B / & +- & + & +& , & 0 ) & % & 1 & % - - 2 - - 3 2 - 45 445- 4 5 5 . & 5 - - 6 - % ( - 1 - 7 6 - + - 2 - 2 6 - 2 & ) &*+ ,&,+& - 8 - 8 6 - 8 9 - 4 1 - 5 6 86 5 - 5 5 - 5 64 - 6 6 - 6 6 - 6 6 - 6 - ) & +- 64 - 1 + 4 . & 4 . & ) . & Table 1. Performance Summary (TA = 25C) PARAMETER CONDITION VALUE Input Voltage Range V 2.9V to 5.5V IN Output Voltage V V =3.6V V 1.4% (LTC3620EDC Output adj. version) OUT IN OUT V 1% (LTC3620-1EDC Fixed 1.1V version) OUT Maximum Output Current 15mA DC Quiescent Current No switching, VFB=0.65V, SW 18mA Pin Floating Minimum Switching Frequency (Internal) V =0.65V, f /MODE=0 50kHz FB MIN =5 - =5 =5 & +- & + & 1 & + & 6 % - & 1 & & + + 8& 2 +4: > +& - ) - . ) & 2 & ) ) ) ) & 6 + 8 +4: 08 & 6 2 % 6 1 ) % & ) . & 5 ) +4: ) <=5 411 & 48 & ) + 8 08 / =5 & & ) +4: 08 & 9 1 6 , & + % & & + ,&,+ +4: ) & A & 3 - / <=5 411 / DC1460A Warning. If the power for the demo board is carried in long leads, 6 & +& + +4: the input voltage at the part could ring, which could affect the - operation of the circuit or even exceed the maximum voltage rating ) &,A B C& of the IC. To eliminate the ringing, insert an electrolytic capacitor (for instance, Panasonic part 1 B m1D +) on the pads - ) between the input power and return terminals on the bottom of the ) & demo board. The (greater) ESR of the electrolytic will dampen the (possible) ringing voltage due to the use of long input leads. On a normal, typical PCB, with short traces, the capacitor is not needed.