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LM2577M-ADJ Datasheet(PDF) 6 Page - Texas Instruments |
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LM2577M-ADJ Datasheet(HTML) 6 Page - Texas Instruments |
6 / 42 page LM1577, LM2577 SNOS658D – JUNE 1999 – REVISED APRIL 2013 www.ti.com Electrical Characteristics—LM1577-15, LM2577-15 (continued) Specifications with standard type face are for TJ = 25°C, and those in bold type face apply over full Operating Temperature Range. Unless otherwise specified, VIN = 5V, and ISWITCH = 0. Symbol Parameter Conditions Typical LM1577-15 LM2577-15 Units Limit(1)(2) Limit(3) (Limits) Error Amplifier Upper Limit 2.4 V Output Swing VFEEDBACK = 12.0V 2.2/2.0 2.2/2.0 V(min) Lower Limit 0.3 V VFEEDBACK = 18.0V 0.4/0.55 0.40/0.55 V(max) Error Amp VFEEDBACK = 12.0V to 18.0V ±200 μA Output Current VCOMP = 1.0V ±130/±90 ±130/±90 μA(min) ±300/±400 ±300/±400 μA(max) ISS Soft Start Current VFEEDBACK = 12.0V 5.0 μA VCOMP = 0V 2.5/1.5 2.5/1.5 μA(min) 7.5/9.5 7.5/9.5 μA(max) D Maximum Duty VCOMP = 1.5V 95 % Cycle ISWITCH = 100 mA 93/90 93/90 %(min) Switch 12.5 A/V Transconductance IL Switch Leakage VSWITCH = 65V 10 μA Current VFEEDBACK = 18.0V 300/600 300/600 μA(max) (Switch Off) VSAT Switch Saturation ISWITCH = 2.0A 0.5 V Voltage VCOMP = 2.0V 0.7/0.9 0.7/0.9 V(max) (Max Duty Cycle) NPN Switch VCOMP = 2.0V 4.3 A Current Limit 3.7/3.0 3.7/3.0 A(min) 5.3/6.0 5.3/6.0 A(max) 6 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LM1577 LM2577 |
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