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LM2736XMKX Datasheet(PDF) 1 Page - Texas Instruments |
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LM2736XMKX Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page VIN VIN EN BOOST SW FB GND VOUT C3 L1 C1 C2 R1 R2 D1 D2 ON OFF LM2736 www.ti.com SNVS316F – SEPTEMBER 2004 – REVISED APRIL 2013 LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator Check for Samples: LM2736 1 FEATURES DESCRIPTION The LM2736 regulator is a monolithic, high frequency, 23 • Thin SOT-6 Package PWM step-down DC/DC converter in a 6-pin Thin • 3.0V to 18V Input Voltage Range SOT package. It provides all the active functions to • 1.25V to 16V Output Voltage Range provide local DC/DC conversion with fast transient response and accurate regulation in the smallest • 750mA Output Current possible PCB area. • 550kHz (LM2736Y) and 1.6MHz (LM2736X) With a minimum of external components and online Switching Frequencies design support through WEBENCH®, the LM2736 is • 350m Ω NMOS Switch easy to use. The ability to drive 750mA loads with an • 30nA Shutdown Current internal 350m Ω NMOS switch using state-of-the-art • 1.25V, 2% Internal Voltage Reference 0.5µm BiCMOS technology results in the best power density available. The world class control circuitry • Internal Soft-Start allows for on-times as low as 13ns, thus supporting • Current-Mode, PWM Operation exceptionally high frequency conversion over the • WEBENCH® Online Design Tool entire 3V to 18V input operating range down to the minimum output voltage of 1.25V. Switching • Thermal Shutdown frequency is internally set to 550kHz (LM2736Y) or 1.6MHz (LM2736X), allowing the use of extremely APPLICATIONS small surface mount inductors and chip capacitors. • Local Point of Load Regulation Even though the operating frequencies are very high, efficiencies up to 90% are easy to achieve. External • Core Power in HDDs shutdown is included, featuring an ultra-low stand-by • Set-Top Boxes current of 30nA. The LM2736 utilizes current-mode • Battery Powered Devices control and internal compensation to provide high- performance regulation over a wide range of • USB Powered Devices operating conditions. Additional features include • DSL Modems internal soft-start circuitry to reduce inrush current, • Notebook Computers pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection. Typical Application Circuit Efficiency vs Load Current "X" VIN = 5V, VOUT = 3.3V 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 WEBENCH is a registered trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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