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LP8731-Q1 Datasheet(PDF) 1 Page - Texas Instruments |
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LP8731-Q1 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 51 page  LP8731 VINLDO1 SDA GND_L LDO1 ENLDO1 SCL VIN1 LDO2 SW2 FB2 VIN2 GND_SW2 ENSW1 ENSW2 VINLDO2 EN_T ENLDO2 GND_C AVDD VINLDO12 0.47 2F 1 2F 1 2F 0.47 2F 2.2 2H 10 2F 10 2F 1 2F 1 2F 10 2F GND_SW1 SW1 FB1 10 2F 2.2 2H nPOR VDD 100k I/O Voltage Domain Advanced Power Controller Core ADAS Domain Block Peripheral ADAS Blocks Application System or SoC LDO1 LDO1 Buck1 Buck2 LDO2 SCL SDA Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP8731-Q1 SNVSA28 – DECEMBER 2014 LP8731-Q1 Dual High-Current Step-Down DC-DC And Dual Linear Regulators with I2C Interface 1 Features 3 Description The LP8731-Q1 is a multi-function, programmable 1 • Two LDOs for Powering Internal Processor Power Management Unit (PMU), optimized for low Functions and I/Os power FPGAs, microprocessors, and DSPs. This • High-Speed Serial Interface for Independent device integrates two highly efficient 1.2-A step-down Control of Device Functions and Settings DC-DC converters with dynamic voltage management (DVM), two 300-mA linear regulators, and a 400-kHz • Precision Internal Reference I2C-compatible interface to allow a host controller • Thermal Overload Protection access to the internal control registers of the LP8731- • Current Overload Protection Q1. The LP8731-Q1 device additionally features • Software Programmable Regulators programmable power-on sequencing. • External Power-On-Reset Function for Buck1 and Device Information(1) Buck2 (Power Good with Delay Function) PART NUMBER PACKAGE BODY SIZE (MAX) • Undervoltage Lockout (UVLO) LP8731-Q1 DSBGA (25) 2.52 mm x 2.52 mm • LP8731-Q1 is an Automotive-Grade Product: (1) For all available packages, see the orderable addendum at AECQ-100 Grade-1 Qualified the end of the datasheet. • Step-Down DC/DC Converter (2xBuck) space – Programmable VOUT from: space – Buck1 : 0.8875 V – 1.675 V at 1.2 A – Buck2 : 0.8875 V – 1.675 V at 1.2 A space – Up to 96% Efficiency Simplified Schematic – PWM Switching Frequency of 2.1 MHz – ±2% Output Voltage Accuracy – Automatic Soft Start • Linear Regulators (2xLDO) – Programmable VOUT of 0.8 V to 3.3 V – ±3% Output Voltage Accuracy – 300-mA Output Current – 30-mV (Typical) Dropout 2 Applications • Configurable Output PMU for ADAS (Advanced Driver Assistance Systems) • FPGA, DSP Core Power • Applications Processors 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
Similar Part No. - LP8731-Q1_15 |
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Similar Description - LP8731-Q1_15 |
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