Datasheet LT1316 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Micropower DC/DC Converter with Programmable Peak Current Limit |
| 页数 / 页 | 16 / 3 — ELECTRICAL CHAR C. A TERISTICS. Commercial grade 0. C to 70. C, … |
| 文件格式/大小 | PDF / 313 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHAR C. A TERISTICS. Commercial grade 0. C to 70. C, Industrial grade – 40. C to 85. C, VIN = 2V, VSHDN = VIN, TA = 25
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LT1316
ELECTRICAL CHAR C A TERISTICS Commercial 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) PARAMETER CONDITIONS MIN TYP MAX UNITS
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.
W U TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Response Burst 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
ELECTRICAL CHAR C A TERISTICS Commercial 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) PARAMETER CONDITIONS MIN TYP MAX UNITS
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.
W U TYPICAL PERFORMANCE CHARACTERISTICS Load Transient Response Burst 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