LM2614400mA Sub-Miniature Adjustable DC-DC ConverterOptimized for RF Power AmplifiersGeneral DescriptionThe LM2614 DC-DC converter is optimized for po
Device Information (Continued)PWM OPERATIONWhile in PWM (Pulse Width Modulation) mode, the outputvoltage is regulated by switching at a constant frequ
Device Information (Continued)extending battery life when the load is in a low-powerstandby mode. In PFM mode, quiescent current into the VDDpin is 16
Device Information (Continued)SOFT-STARTThe LM2614 has soft start to reduce current inrush duringpower-up and startup. This reduces stress on the LM26
Application InformationSETTING THE OUTPUT VOLTAGEThe LM2614 can be used with external feedback resistorsand an analog signal to vary the output voltag
Application Information (Continued)CAPACITOR SELECTIONUse a 4.7µF or 10µF ceramic input capacitor. A 10µF ce-ramic input capacitor is recommended if t
Application Information (Continued)3. Arrange the components so that the switching currentloops curl in the same direction. During the first half ofea
Physical Dimensions inches (millimeters) unless otherwise notedNOTES: UNLESS OTHERWISE SPECIFIED1. EPOXY COATING2. 63Sn/37Pb EUTECTIC BUMP3. RECOMMEND
Typical Application Circuits20036701FIGURE 1. Typical Circuit for Powering RF Power Amplifiers20036702FIGURE 2. Typical Circuit for 2.5V Output Voltag
Connection Diagrams10-Bump micro SMD Package20036704Top View20036705Bottom ViewOrdering InformationOrder Number Package TypeNSC PackageMarking (*)Supp
Absolute Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distribut
Typical Performance CharacteristicsLM2614ATL, Circuit of Figure 4,VIN= 3.6V, TA= 25˚C, unless otherwise noted.Quiescent Supply Current vs Supply Volta
Typical Performance CharacteristicsLM2614ATL, Circuit of Figure 4,VIN= 3.6V, TA= 25˚C, unless otherwise noted. (Continued)Output Voltage vs Output Cur
Typical Performance CharacteristicsLM2614ATL, Circuit of Figure 4,VIN= 3.6V, TA= 25˚C, unless otherwise noted. (Continued)Efficiency vs Output Current
Typical Performance CharacteristicsLM2614ATL, Circuit of Figure 4,VIN= 3.6V, TA= 25˚C, unless otherwise noted. (Continued)Efficiency vs Output Voltage
Device Information (Continued)CIRCUIT OPERATIONReferring to Figure 4, Figure 5, Figure 6 and Figure 7,the LM2614 operates as follows. During the first
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