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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP3907 датащи(PDF) 1 Page - Texas Instruments |
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LP3907 датащи(HTML) 1 Page - Texas Instruments |
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1 / 58 page  LP3907 VINLDO1 SDA GND_L LDO1 ENLDO1 SCL VIN1 LDO2 SW2 FB2 VIN2 GND_SW2 ENSW1 ENSW2 VINLDO2 EN_T ENLDO2 GND_C AVDD VINLDO12 DAP 0.47 PF 1 PF 1 PF 0.47 PF 2.2 PH 10 PF 10 PF 1 PF 1 PF 10 PF GND_SW1 SW1 FB1 10 PF 2.2 PH nPOR VDD 100k Copyright © 2016, Texas Instruments Incorporated Product Folder Sample & Buy Technical Documents Tools & Software Support & Community 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. LP3907 SNVS511S – JUNE 2007 – REVISED APRIL 2016 LP3907 Dual High-Current Step-Down DC-DC and Dual Linear Regulator With I2C Interface 1 1 Features 1 • Input Voltage Range: 2.8 V to 5.5 V • Compatible with Advanced Applications Processors and FPGAs • 2 LDOs for Powering Internal Processor Functions and I/Os • High-Speed Serial Interface for Independent Control of Device Functions and Settings • Precision Internal Reference • Thermal Overload Protection • Current Overload Protection • Software Programmable Regulators • External Power-On-Reset Function for Buck1 and Buck2 (Power Good with Delay Function) • Undervoltage Lockout Detector to Monitor Input Supply Voltage • Step-Down DC-DC Converter (Buck) – Programmable VOUT from: – Buck1 : 0.8 V–2 V at 1 A – Buck2 : 1 V–3.5 V at 600 mA – Up to 96% Efficiency – 2.1-MHz PWM Switching Frequency – PWM-to-PFM Automatic Mode Change Under Low Loads – ±3% Output Voltage Accuracy – Automatic Soft Start • Linear Regulators (LDO) – Programmable VOUT of 1 V to 3.5 V (except JJ11, FX6W, and JX6X options) – ±3% Output Voltage Accuracy – 300-mA Output Current – 30-mV (typical) Dropout 2 Applications • FPGA, DSP Core Power • Applications Processors • Peripheral I/O Power • Hearing Aids • Electronic Measurement Units • Equipment Run-Off of Battery Backup 3 Description The LP3907 is a multi-function, programmable power management unit (PMU) optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A/600-mA step-down DC-DC converters with dynamic voltage management (DVM), two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907 additionally features programmable power-on sequencing. Device Information(1) PART NUMBER PACKAGE BODY SIZE LP3907 WQFN (24) 4.00 mm × 4.00 mm (NOM) DSBGA (25) 2.521 mm × 2.521 mm (MAX) (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Circuit |
Аналогичный номер детали - LP3907 |
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Аналогичное описание - LP3907 |
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