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LP3971 Datasheet(PDF) 1 Page - Texas Instruments |
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LP3971 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 52 page  LP3971 www.ti.com SNVS432V – JANUARY 2006 – REVISED MAY 2013 LP3971 Power Management Unit for Advanced Application Processors Check for Samples: LP3971 1 FEATURES KEY SPECIFICATIONS 2 • Compatible with Advanced Applications • Buck Regulators Processors Requiring DVM (Dynamic Voltage – Programmable VOUT from 0.725 to 3.3V Management) – Up to 95% Efficiency • Three Buck Regulators for Powering High – Up to 1.6A Output Current Current Processor Functions or I/O's – ±3% Output Voltage Accuracy • 6 LDO's for Powering RTC, Peripherals, and • LDO’s I/O's – Programmable VOUT of 1.0V–3.3V • Backup Battery Charger with Automatic – ±3% output voltage accuracy Switch for Lithium-Manganese Coin Cell Batteries and Super Capacitors – 150/300/370 mA output currents • I2C Compatible High Speed Serial Interface – LDO RTC 30 mA • Software Control of Regulator Functions and – LDO 1 300 mA Settings – LDO 2 150 mA • Precision Internal Reference – LDO 3 150 mA • Thermal Overload Protection – LDO 4 150 mA • Current Overload Protection – LDO 5 370 mA • Tiny 40-pin 5x5 mm WQFN Package – 100 mV (typ) dropout APPLICATIONS DESCRIPTION The LP3971 is a multi-function, programmable Power • PDA Phones Management Unit, designed especially for advanced • Smart Phones application processors. The LP3971 is optimized for • Personal Media Players low power handheld applications and provides 6 low • Digital Cameras dropout, low noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger • Application Processors and two GPIO’s. A high speed serial interface is – Marvell PXA included to program individual regulator output – Freescale voltages as well as on/off control. – Samsung 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 © 2006–2013, 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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