LT1316 ELECTRICAL CHAR CA TERISTICSCommercial grade 0 ° C to 70 ° C, Industrial grade – 40 ° C to 85 ° C, VIN = 2V, VSHDN = VIN, TA = 25 ° C unless otherwise noted. (Notes 1, 2)PARAMETERCONDITIONSMINTYPMAXUNITS Switch OFF Time FB > 1V 1.4 2.0 2.6 µs ● 1.1 3.0 µs FB < 1V 3.4 µs Switch ON Time Current Limit Not Asserted 4.4 6.3 8.2 µs 1V < FB < 1.2V ● 3.4 9.5 µs Maximum Duty Cycle Current Limit Not Asserted 74 76 90 % 1V < FB < 1.2V ● 73 90 % Switch Saturation Voltage ISW = 0.5A ● 0.30 0.4 V ISW = 0.1A ● 0.06 0.15 V Switch Leakage Switch Off, VSW = 5V ● 0.1 5 µA Commercial grade 0 ° C to 70 ° C, VIN = 2V, VSHDN = VIN, TA = 25 ° C unless otherwise noted. FB Comparator Trip Point ● 1.21 1.23 1.25 V Peak Switch Current RSET = 27.4k, TA = 25°C 90 100 110 mA RSET = 27.4k, TA =0°C 90 100 115 mA RSET = 27.4k, TA = 70°C 70 90 110 mA RSET = 10K ● 250 290 340 mA RSET = 121k 25 mA Industrial grade – 40 ° C to 85 ° C, VIN = 2V, VSHDN = VIN, TA = 25 ° C unless otherwise noted. FB Comparator Trip Point ● 1.205 1.23 1.255 V Peak Switch Current RSET = 27.4k, ● 70 100 125 mA RSET = 10k ● 200 290 370 mA The ● denotes specifications which apply over the specified temperature over the – 40°C to 85°C temperature range by design or correlation, but range. are not production tested. Note 1: C grade device specifications are guaranteed over the 0°C to 70°C Note 2: I grade device specifications are guaranteed over the – 40°C to temperature range. In addition, C grade device specifications are assured 85°C temperature range. WUTYPICAL PERFORMANCE CHARACTERISTICSLoad Transient ResponseBurst ModeTM Operation VOUT VOUT 100mV/DIV 100mV/DIV AC COUPLED AC COUPLED VSW 50mA 5V/DIV ILOAD INDUCTOR CURRENT 200mA/DIV 0mA 1316 G01 1316 G02 Burst Mode IS A TRADEMARK OF LINEAR TECHNOLOGY CORPORATION. 3
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