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LM26001B Datasheet(PDF) 1 Page - Texas Instruments |
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LM26001B Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page LM26001B SW SW BOOT FB COMP VDD GND FPWM FREQ SS SYNC EN PGOOD VIN 2 3 13 9 14 4 10 6 11 5 8 7 15 16 VIN VOUT VIN VBIAS 1 12 C1 C5 R3 C8 R5 L C4 R2 R1 C6 C3 R4 D1 VDD 17 EP R6 EN SYNC + LM26001B www.ti.com SNVS491B – MAY 2007 – REVISED APRIL 2013 LM26001B 1.5A Switching Regulator with High Efficiency Sleep Mode Check for Samples: LM26001B 1 FEATURES DESCRIPTION The LM26001B is a switching regulator designed for 2 • High Efficiency Sleep Mode the high efficiency requirements of applications with • 40 µA Typical Iq in Sleep Mode stand-by modes. The device features a low-current • 10 µA Typical Iq in Shutdown Mode sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate • 3.0V Minimum Input Voltage regulation over a wide input voltage range. Quiescent • 4.0V to 18V Continuous Input Range current is reduced to 10 µA typically in shutdown • 2.0% Reference Accuracy mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode. • Cycle-by-Cycle Current Limit • Adjustable Frequency (150 kHz to 500 kHz) The LM26001B can deliver up to 1.5A of continuous load current with a fixed current limit, through the • Synchronizable to an External Clock internal N-channel switch. The part has a wide input • Power Good Flag voltage range of 4.0V to 18V and can operate with • Forced PWM Function input voltages as low as 3V during line transients. • Adjustable Soft-Start Operating frequency is adjustable from 150 kHz to • HTSSOP-16 Exposed Pad Package 500 kHz with a single resistor and can be synchronized to an external clock. • Thermal Shut Down Other features include Power good, adjustable soft- APPLICATIONS start, enable pin, input under-voltage protection, and an internal bootstrap diode for reduced component • Automotive Telematics count. • Navigation Systems • In-Dash Instrumentation • Battery Powered Applications • Stand-by Power for Home Gateways/Set-Top Boxes Typical Application Circuit 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 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2013, 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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Descripción similar - LM26001B_15 |
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