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LT1585A-3.3 Datasheet(PDF) 3 Page - Linear Technology |
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LT1585A-3.3 Datasheet(HTML) 3 Page - Linear Technology |
3 / 12 page 3 LT1585A/LT1585A-3.3 1585afa PARAMETER CONDITIONS MIN TYP MAX UNITS Ripple Rejection LT1585A f = 120Hz, COUT = 100µF Tant., (VIN – VOUT) = 3V, IOUT = 5A LT1585A-3.3 f = 120Hz, COUT = 100µF Tant., VIN = 6.3V, IOUT = 5A ● 60 72 dB Thermal LT1585A TA = 25°C, 30ms Pulse Regulation LT1585A-3.3 TA = 25°C, 30ms Pulse 0.004 0.02 %/W Temperature Stability ● 0.5 % Long-Term Stability TA = 125°C, 1000 Hrs. 0.03 1.0 % RMS Output Noise TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % (% of VOUT) Thermal Resistance LT1585A T Package: Control Circuitry/Power Transistor 0.7/3.0 °C/W Junction to Case Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation 28.8W for the LT1585A in T package. Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range. Note 3: IFULL LOAD is defined as the maximum value of output load current as a function of input-to-output voltage. IFULL LOAD is equal to 5A for the LT1585A/LT1585A-3.3. The LT1585A has constant current limit with changes in input-to-output voltage. TYPICAL PERFORMANCE CHARACTERISTICS TEMPERATURE (°C) –0.20 –0.10 0 0.10 –0.15 –0.05 0.05 –25 25 75 125 LT1585A • TPC03 175 –50 –75 0 50 100 150 ∆I = 5A LT1585A Load Regulation vs Temperature OUTPUT CURRENT (A) 0 1.1 1.3 1.5 4 LT1585A • TPC01 0.9 0.7 1.0 1.2 1.4 0.8 0.6 0.5 1 2 3 5 T = –5°C T = 125°C T = 25°C GUARANTEED TEST POINTS LT1585A Dropout Voltage vs Output Current TEMPERATURE (°C) –75 5.0 5.5 125 LT1585A • TPC02 4.5 4.0 –25 25 50 175 6.0 75 –50 0 150 100 LT1585A Short-Circuit Current vs Temperature ELECTRICAL CHARACTERISTICS The ● denotes specificatons which apply over the specified temperature range, otherwise specifications are at TA = 25°C. |
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