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LM2736XMK Datasheet(PDF) 3 Page - Texas Instruments |
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LM2736XMK Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page LM2736 www.ti.com SNVS316F – SEPTEMBER 2004 – REVISED APRIL 2013 Operating Ratings (1) VIN 3V to 18V SW Voltage -0.5V to 18V Boost Voltage -0.5V to 23V Boost to SW Voltage 1.6V to 5.5V Junction Temperature Range −40°C to +125°C Thermal Resistance θJA (2) 118°C/W (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For specific specifications and the test conditions, see Electrical Characteristics. (2) Thermal shutdown will occur if the junction temperature exceeds 165°C. The maximum power dissipation is a function of TJ(MAX) , θJA and TA . The maximum allowable power dissipation at any ambient temperature is PD = (TJ(MAX) – TA)/θJA . All numbers apply for packages soldered directly onto a 3” x 3” PC board with 2oz. copper on 4 layers in still air. For a 2 layer board using 1 oz. copper in still air, θJA = 204°C/W. Electrical Characteristics Specifications with standard typeface are for TJ = 25°C, and those in boldface type apply over the full Operating Temperature Range (TJ = -40°C to 125°C). VIN = 5V, VBOOST - VSW = 5V unless otherwise specified. Datasheet min/max specification limits are ensured by design, test, or statistical analysis. Symbol Parameter Conditions Min(1) Typ(2) Max(1) Units VFB Feedback Voltage 1.225 1.250 1.275 V ΔVFB/ΔVIN Feedback Voltage Line Regulation VIN = 3V to 18V 0.01 % / V IFB Feedback Input Bias Current Sink/Source 10 250 nA Undervoltage Lockout VIN Rising 2.74 2.90 UVLO Undervoltage Lockout VIN Falling 2.0 2.3 V UVLO Hysteresis 0.30 0.44 0.62 LM2736X 1.2 1.6 1.9 FSW Switching Frequency MHz LM2736Y 0.40 0.55 0.66 LM2736X 85 92 DMAX Maximum Duty Cycle % LM2736Y 90 96 LM2736X 2 DMIN Minimum Duty Cycle % LM2736Y 1 RDS(ON) Switch ON Resistance VBOOST - VSW = 3V 350 650 m Ω ICL Switch Current Limit VBOOST - VSW = 3V 1.0 1.5 2.3 A IQ Quiescent Current Switching 1.5 2.5 mA Quiescent Current (shutdown) VEN = 0V 30 nA LM2736X (50% Duty Cycle) 2.2 3.3 IBOOST Boost Pin Current mA LM2736Y (50% Duty Cycle) 0.9 1.6 Shutdown Threshold Voltage VEN Falling 0.4 VEN_TH V Enable Threshold Voltage VEN Rising 1.8 IEN Enable Pin Current Sink/Source 10 nA ISW Switch Leakage 40 nA (1) Specified to Texas Instruments' Average Outgoing Quality Level (AOQL). (2) Typicals represent the most likely parametric norm. Copyright © 2004–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2736 |
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