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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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LP3971 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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LP3971 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
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1 / 57 page  LP3971 www.ti.com SNVS432U – JANUARY 2006 – REVISED OCTOBER 2008 LP3971 Power Management Unit for Advanced Application Processors Check for Samples: LP3971 1 FEATURES • Current overload protection • Tiny 40-pin 5x5 mm LLP package 2 • Compatible with advanced applications processors requiring DVM (Dynamic Voltage APPLICATIONS Management) • Three buck regulators for powering high • PDA phones current processor functions or I/O's • Smart phones • 6 LDO's for powering RTC, peripherals, and • Personal Media Players I/O's • Digital cameras • Backup battery charger with automatic switch • Application processors for lithium-manganese coin cell batteries and – Marvell PXA Super capacitors – Freescale • I2C compatible high speed serial interface – Samsung • Software control of regulator functions and settings • Precision internal reference • Thermal overload protection DESCRIPTION The LP3971 is a multi-function, programmable Power Management Unit, designed especially for advanced application processors. The LP3971 is optimized for low power handheld applications and provides 6 low dropout, low noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger and two GPIO’s. A high speed serial interface is included to program individual regulator output voltages as well as on/off control. KEY SPECIFICATIONS Regulators Programmable VOUT from 0.725 to 3.3V Up to 95% efficiency Up to 1.6A output current ±3% output voltage accuracy LDOs Programmable VOUT of 1.0V–3.3V ±3% output voltage accuracy 150/300/370 mA output currents: LDO RTC 30 mA LDO 1 300 mA LDO 2 150 mA LDO 3 150 mA LDO 4 150 mA LDO 5 370 mA 100 mV (typ) dropout 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 © 2006–2008, 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. |
Số phần tương tự - LP3971 |
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Mô tả tương tự - LP3971 |
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