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LM2591HVT-3.3 データシート(PDF) 4 Page - Texas Instruments |
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LM2591HVT-3.3 データシート(HTML) 4 Page - Texas Instruments |
4 / 29 page LM2591HV SNVS074D – MAY 2001 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS ALL OUTPUT VOLTAGE VERSIONS (continued) Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, VIN = 12V for the 3.3V, 5V, and Adjustable version. ILOAD = 500 mA Symbol Parameter Conditions LM2591HV-XX Units (Limits) Typ (1) Limit (2) DC Max Duty Cycle (ON) See (5)(6) 100 % Min Duty Cycle (OFF) 0 ICLIM Switch current Limit Peak Current, (4)(5) 1.9 A 1.3/1.2 A(min) 2.8/3.0 A(max) IL Output Leakage Current Output = 0V 50 μA(max) Output = −1V (4)(6)(7) 5 mA 30 mA(max) IQ Operating Quiescent SD /SS Pin Open (6) 5 mA Current 10 mA(max) ISTBY Standby Quiescent SD /SS pin = 0V (7) 90 μA Current 200/250 μA(max) θJC Thermal Resistance TO220 or TO263 Package, Junction to Case 2 °C/W θJA TO220 Package, Junction to Ambient (8) 50 °C/W θJA TO263 Package, Junction to Ambient (9) 50 °C/W θJA TO263 Package, Junction to Ambient (10) 30 °C/W θJA TO263 Package, Junction to Ambient (11) 20 °C/W ON/OFF CONTROL Test Circuit Test Circuit and Layout Guidelines ON /OFF Pin Logic Input 1.3 V VIH Threshold Voltage Low (Regulator ON) 0.6 V(max) VIL High (Regulator OFF) 2.0 V(min) IH ON /OFF Pin Input Current VLOGIC = 2.5V (Regulator OFF) 5 μA 15 μA(max) IL VLOGIC = 0.5V (Regulator ON) 0.02 μA 5 μA(max) (6) Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version to force the output transistor switch OFF. (7) VIN = 60V. (8) Junction to ambient thermal resistance (no external heat sink) for the package mounted TO-220 package mounted vertically, with the leads soldered to a printed circuit board with (1 oz.) copper area of approximately 1 in2. (9) Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed circuit board with 0.5 in2 of (1 oz.) copper area. (10) Junction to ambient thermal resistance with the TO-263 package tab soldered to a single sided printed circuit board with 2.5 in2 of (1 oz.) copper area. (11) Junction to ambient thermal resistance with the TO-263 package tab soldered to a double sided printed circuit board with 3 in2 of (1 oz.) copper area on the LM2591HVS side of the board, and approximately 16 in2 of copper on the other side of the p-c board. See APPLICATION INFORMATION in this data sheet and the thermal model in Switchers Made Simple available at http://www.ti.com/lsds/ti/analog/powermanagement/power_portal.page. 4 Submit Documentation Feedback Copyright © 2001–2013, Texas Instruments Incorporated Product Folder Links: LM2591HV |
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同様の説明 - LM2591HVT-3.3 |
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