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LT1432CN8-3.3 Datasheet(PDF) 5 Page - Linear Technology |
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LT1432CN8-3.3 Datasheet(HTML) 5 Page - Linear Technology |
5 / 8 page 5 LT1432-3.3 CC HARA TERISTICS A TYPICALPERFOR CE No Load Battery Current in Burst Mode Operation Transconductance – VOUT to VC Current Burst Mode Operation Load Regulation Incremental Battery Current * in Burst Mode Operation BATTERY VOLTAGE (V) 0 1.0 1.5 20 LT1432-3.3 G10 0.5 0 5 10 15 25 2.0 * TO CALCULATE TOTAL BATTERY CURRENT IN Burst Mode OPERATION, MULTIPLY LOAD CURRENT BY INCREMENTAL FACTOR AND ADD NO-LOAD CURRENT. TJ = 25°C BATTERY VOLTAGE (V) 0 3 4 5 20 LT1432-3.3 G11 2 1 0 5 10 15 25 TJ = 25°C JUNCTION TEMPERATURE ( °C) 0 3000 4000 100 LT1432-3.3 G12 2000 1000 25 50 75 5000 Gm = ∆I(VC PIN) ∆VOUT Restart Load Current Line Regulation Mode Pin Current Restart Time Delay Start-up Switch Characteristics MODE PIN VOLTAGE (V) 0 20 40 60 8 LT1432-3.3 G15 0 –20 –40 2 4 6 10 MODE DRIVE MUST SINK ≈ 30µA AT 0V TJ = 25°C LOAD CURRENT (mA) 0 –25 0 80 –50 –75 20 40 60 100 25 LT1432-3.3 G14 TJ = 25°C VIN = 7V JUNCTION TEMPERATURE ( °C) 0 20 30 100 LT1432-3.3 G16 10 0 25 50 75 40 VOUT = 4.5V JUNCTION TEMPERATURE ( °C) 0 2 3 100 LT1432-3.3 G16 1 0 25 50 75 4 V+ TO VIN VOLTAGE –2 –20 0 5 20 LT1432-3.3 G18 –40 –60 –80 –1 0 10 30 TJ = 25°C NOTE VERTICAL AND HORIZONTAL SCALE CHANGES AT 0,0 0 0 20 20 LT1432-3.3 G13 –20 –40 5 10 15 40 Burst Mode OPERATION NORMAL MODE INPUT VOLTAGE (V) TJ = 25°C |
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