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LT1432CS8 Datasheet(PDF) 3 Page - Linear Technology |
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LT1432CS8 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 28 page  3 LT1432 PARAMETER CONDITIONS MIN TYP MAX UNITS Burst Mode Quiescent Input Supply Current 1.3 1.8 mA Burst Mode Output Ripple Voltage IOUT = 0 100 mVp-p IOUT = 50mA 130 mVp-p Normal Mode Equivalent Input Supply Current Extrapolated from IOUT = 20mA 6 mA Normal Mode Minimum Operating Input Voltage 100mA < IOUT < 1.5A 6 V Burst Mode Minimum Operating Input Voltage 5mA < IOUT < 50mA 6.2 V Efficiency Normal Mode IOUT = 0.5A 91 % Burst Mode IOUT = 25mA 77 % Load Regulation Normal Mode 50mA < IOUT < 2A 10 25 mV Burst Mode 0 < IOUT < 50mA 50 mV ELECTRICAL C C HARA TERISTICS Operating parameters in standard circuit configuration. VIN = +12V, IOUT = 0, unless otherwise noted. These parameters guaranteed where indicated, but not tested. S A CHE TIC EQUIVALE T Figure 2 VIN – + 34 65 2 7 8 MODE CONTROL VLIM +5V GND MODE S3* S1** S2** * S3 IS CLOSED ONLY DURING STARTUP. ** S1 AND S2 ARE SHOWN IN NORMAL MODE. REVERSE FOR BURST MODE. 1 V+ VC VIN DIODE LT1432 F02 60mV VOUT VSW VC GND FB VIN LT1271 |
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