LM2733YEVAL National Semiconductor, LM2733YEVAL Datasheet
LM2733YEVAL
Specifications of LM2733YEVAL
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LM2733YEVAL Summary of contents
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... Internal compensation simplifies de- sign and reduces component count. Switch Frequency X 1.6 MHz 0.6 MHz Typical Application Circuit © 2010 National Semiconductor Corporation LM2733 Features ■ 40V DMOS FET switch ■ 1.6 MHz (“X”), 0.6 MHz (“Y”) switching frequency ■ ...
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Connection Diagram Ordering Information Order Number Package Type LM2733XMF LM2733XMFX SOT23-5 LM2733YMF LM2733YMFX Pin Descriptions Pin Name 1 SW Drain of the internal FET switch. 2 GND Analog and power ground Feedback point that connects to external resistive ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Operating Junction Temperature Range Lead Temp. (Soldering, 5 sec.) Power Dissipation (Note 2) Electrical Characteristics Limits in standard typeface are for T J ≤ ...
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Typical Performance Characteristics Iq V (Active) vs Temperature - "X" IN Oscillator Frequency vs Temperature - "X" Max. Duty Cycle vs Temperature - "X" www.national.com Unless otherwise specified (Active) vs Temperature - "Y" IN 20055410 Oscillator Frequency ...
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Feedback Voltage vs Temperature Current Limit vs Temperature Efficiency vs Load Current (V = 12V) - "X" OUT R (ON) vs Temperature DS 20055406 R 20055409 Efficiency vs Load Current (V 20055414 5 20055407 vs V DS(ON) IN 20055423 = ...
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Efficiency vs Load Current (V Efficiency vs Load Current (V Efficiency vs Load Current (V www.national.com = 20V) - "X" Efficiency vs Load Current (V OUT 20055446 = 30V) - "X" Efficiency vs Load Current (V OUT 20055448 = 40V) ...
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Efficiency vs Load (V = 20V) - "Y" OUT 20055427 Efficiency vs Load (V = 30V) - "Y" OUT 20055429 Efficiency vs Load (V = 40V) - "Y" OUT 20055432 Efficiency vs Load (V OUT Efficiency vs Load (V OUT ...
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Block Diagram Theory of Operation The LM2733 is a switching converter IC that operates at a fixed frequency (0.6 or 1.6 MHz) using current-mode control for fast transient response over a wide input voltage range and incorporate pulse-by-pulse current limiting ...
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EMI passed back along that line to other circuitry. FEED-FORWARD COMPENSATION Although internally compensated, the feed-forward capacitor Cf is required for stability (see Basic Application Circuit). Adding this capacitor puts a zero ...
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DUTY CYCLE The maximum duty cycle of the switching regulator deter- mines the maximum boost ratio of output-to-input voltage that the converter can attain in continuous mode of operation. The duty cycle for a given boost application is defined as: ...
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Switch Current Limit vs Duty Cycle - "X" Switch Current Limit vs Duty Cycle - "Y" CALCULATING LOAD CURRENT As shown in the figure which depicts inductor current, the load current is related to the average inductor current by the ...
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There will be some switching losses as well, so some derating needs to be applied when calculating IC power dissipation. MINIMUM INDUCTANCE In some applications where the maximum load current is rel- atively small, it may be advantageous to use ...
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Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM2733XMF, LM2733XMFX, LM2733YMF or LM2733YMFX 5-Lead SOT-23 Package NS Package Number MF05A 13 www.national.com ...
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