LT7182SRV#PBF

LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management DESCRIPTION FEATURES n n n n n n n n n n n Silent Switcher®2 Architecture: Enables Compact, Efficient, low EMI Solution PMBus/I2C Serial Interface n Telemetry Read Back Includes V OUT, IOUT, VIN, Die Temperature, Faults n Programmable Voltage, Current Limit, Digital SoftStart/Stop, Sequ...
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Технические характеристики

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Корпус
Тип преобразователя Понижающий DC/DC со встроенным ключом
Входное напряжение
Выходное напряжение
Максимальный выходной ток
Частота преобразования
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LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management DESCRIPTION FEATURES n n n n n n n n n n n Silent Switcher®2 Architecture: Enables Compact, Efficient, low EMI Solution PMBus/I2C Serial Interface n Telemetry Read Back Includes V OUT, IOUT, VIN, Die Temperature, Faults n Programmable Voltage, Current Limit, Digital SoftStart/Stop, Sequencing, UV/OV, Phase, Frequency (Up to 4MHz), Loop Compensation n Integrated EEPROM with Fault Event Log Key Parameters May Be Set by Configuration Resistors for Operation without Programming ±0.25% Output Voltage Accuracy Over Temperature for 0.6V to 1.375V PolyPhase Load Sharing for Up to Eight Phases Wide VIN Range: Down to 2.9V, or 1.5V with EXTVCC Up to 95% Efficiency at 1MHz, 12VIN to 3.3VOUT VOUT Range 0.4V to 5.5V (Up to 0.85 • VIN) Differential Remote VOUT Sense External Frequency Synchronization 40-lead (5mm × 7mm) LQFN Package APPLICATIONS n n Communications, Storage, and Industrial Systems Data Center and Solid State Drive Power Supplies The LT®7182S is a dual-output monolithic PolyPhase DC/DC synchronous step-down regulator that delivers up to 6A of continuous current from both channels simultaneously and supports loads up to 8A from either channel. The LT7182S features the second generation Silent Switcher® architecture with integrated VIN bypass capacitors for fast, clean, low-overshoot switching edges delivering high efficiency at high switching frequencies while minimizing EMI emissions. The I2C-based PMBus 1.3 compliant serial interface enables control of device functions and provides telemetry information for system monitoring. The LT7182S is supported by the LTpowerPlay® graphical user interface tool. Output voltage, frequency, phase, and device address can be configured using resistors for operation without programming. Settings may also be written via the serial interface and/or stored in EEPROM. The controlled on-time valley current mode control architecture with 20ns (typical) minimum on-time enables high switching frequency at low output voltage with excellent transient response in a small overall solution size. All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 8823345. TYPICAL APPLICATION VIN 20V 12VIN to 1.2VOUT Efficiency BOOST0 SW0 EXTVCC VOUT0 4V VSENSE0N BOOST1 SW1 VSENSE1P VOUT1 1.2V VSENSE1N DRVCC EFFICIENCY (%) VSENSE0P 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 7 6 5 EFFICIENCY 0.4MHz, 1µH 1MHz, 0.47µH 2MHz, 0.22µH 4 3 2 1 POWER LOSS 0 1 2 3 4 5 6 7 LOAD CURRENT (A) 8 POWER LOSS (W) PVIN1 SDA PVIN0 SCL ALERT LT7182S WP RUN0 RUN1 PGOOD0 PGOOD1 FAULT0 FAULT1 SHARE_CLK ASEL VOUT0_CFG VOUT1_CFG/ POLYPHASE_CFG SYNC/PWM_CFG ITH0 ITH1 INTVCC 9 0 7182s TA0b VDD18 7182s TA01 Rev. 0 Document Feedback For more information www.analog.com 1 PDF
Документация на серию LT7182S 

LT7182S (Rev. 0) Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management

Дата модификации: 04.08.2022

Размер: 1.85 Мб

38 стр.

    Публикации 1

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    24 января 2022
    статья

    Интерфейсы I2C, SMBus и PMBus

    Мари Грейс Легаспи, Эрик Пенья (Analog Devices) I2C (Inter–Integrated Circuit) – широко используемый последовательный протокол связи между микросхемами. Специалисты компании Analog Devices рассматривают его основные функции и описывают... ...читать

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