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LT8645SIV#PBF

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IC REG BUCK ADJ 7A 65V 32LQFN

  • Package/Case :
  • 32-TFQFN
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  • IC Chips
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  • Lead free / RoHS Compliant
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LT8645SIV#PBF Product Details

Power by Linear / Analog Devices’ LT8645 and LT8646 are 65 V, 8 A synchronous step-down/buck regulators. These regulators feature Silent Switcher® architecture designed to minimize EMI/EMC emissions while delivering high efficiency at high switching frequencies. This architecture includes the integration of bypass capacitors to optimize all the fast-current loops inside and make it easy to achieve advertised EMI performance by eliminating layout sensitivity. This performance makes the LT8645 and LT8646 ideal for noise sensitive applications and environments.The fast, clean, low-overshoot switching edges enable high-efficiency operation even at high switching frequencies, leading to a small overall solution size. Peak current mode control with a 40 ns minimum on-time allows high step down ratios even at high switching frequencies. The LT8646 has external compensation via the VC pin to enable current sharing and fast transient response at high switching frequencies.Burst Mode® operation enables ultra-low standby current consumption, pulse-skipping mode allows full switching frequency at lower output loads, or spread spectrum operation can further reduce EMI/EMC emissions. Soft-start and tracking functionality are accessed via the TR/SS pin, and an accurate input voltage UVLO threshold can be set using the EN/UV pin. A CLKOUT pin enables synchronizing other regulators to the LT8645 and LT8646. The regulators come in a compact 32-lead LQFN package that has an operating temperature range of -40°C to +125°C. The LT8645 and LT8646 are perfect for automotive, industrial, and GSM power supplies.<strong>Features:</strong> Silent Switcher® 2 architecture Eliminates PCB layout sensitivity, Internal bypass capacitors reduce radiated EMI, Optional spread spectrum modulation, Ultra-low EMI/EMC emissions on any PCB, High efficiency at high frequency Up to 95% efficiency at 1 MHz, 12 VIN to 5 VOUT, Up to 94% efficiency at 2 MHz, 12 VIN to 5 VOUT, Wide input voltage range: 3.4 V to 65 V, Output soft-start and tracking, Small 32-lead 6 mm × 4 mm LQFN package, Ultra-low quiescent current Burst Mode® operation Output ripple < 10 mVP-P, 2.5 μA IQ regulating 12 VIN to 3.3 VOUT, Low dropout under all conditions: 60 mV at 1 A, External compensation: fast transient response and current sharing (LT8646S), Peak current mode operation, Fast minimum switch on-time: 40 ns, Adjustable and synchronizable: 200 kHz to 2.2 MHz, Automotive power supplies, Industrial power supplies, GSM power supplies, Step-down/buck

Feature

  • Silent Switcher® 2 Architecture
    • Ultralow EMI/EMC Emissions on Any PCB
    • Eliminates PCB Layout Sensitivity
    • Internal Bypass Capacitors Reduce Radiated EMI
    • Optional Spread Spectrum Modulation
  • High Efficiency at High Frequency
    • Up to 95% Efficiency at 1MHz, 12VIN to 5VOUT
    • Up to 94% Efficiency at 2MHz, 12VIN to 5VOUT
  • Wide Input Voltage Range: 3.4V to 65V
  • Ultralow Quiescent Current Burst Mode® Operation
    • 2.5μA IQ Regulating 12VIN to 3.3VOUT
    • Output Ripple < 10mVP-P
  • External Compensation: Fast Transient Response and Current Sharing (LT8646S)
  • Fast Minimum Switch On-Time: 40ns
  • Low Dropout Under All Conditions: 60mV at 1A
  • Adjustable and Synchronizable: 200kHz to 2.2MHz
  • Peak Current Mode Operation
  • Output Soft-Start and Tracking
  • Small 32-Lead 6mm × 4mm LQFN Package

Applications

  • Automotive and Industrial Supplies
  • General Purpose Step-Down
  • GSM Power Supplies

Technical Parameters

  • Manufacturer
  • Linear Technology/Analog Devices
  • Series
  • -
  • Packaging
  • Tray&nbsp;
  • Part Status
  • Active
  • Function
  • Step-Down
  • Output Configuration
  • Positive
  • Topology
  • Buck
  • Output Type
  • Adjustable
  • Number of Outputs
  • 1
  • Voltage Input (Min)
  • 3.4V
  • Voltage Input (Max)
  • 65V
  • Voltage Output (Min/Fixed)
  • 1.8V
  • Voltage Output (Max)
  • 12V
  • Current Output
  • 8A
  • Frequency Switching
  • 200kHz ~ 2.2MHz
  • Synchronous Rectifier
  • Yes
  • Operating Temperature
  • -40°C ~ 125°C (TJ)
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 32-TFQFN Exposed Pad
  • Supplier Device Package
  • 32-LQFN (6x4)
  • Base Part Number
  • LT8645
  • Standard Package
  • 490

LT8645SIV#PBF Documents

  • LT8645S Technical Documentation/Data sheet

LT8645SIV#PBF Related Products

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    90 days quality guarantee for all products.

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Guarantees

1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

FAQ:

Q: How does Jotrin guarantee that LT8645SIV#PBF is the original manufacturer or agent of AD?
We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their LT8645SIV#PBF devices; we pay more attention to the channels and quality of LT8645SIV#PBF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LT8645SIV#PBF chips? Including AD original factory information, IC Chips application, LT8645SIV#PBF pictures?
You can use Jotrin's intelligent search engine, or filter by Step-Down (Buck) Regulators ; Micropower Buck Regulators category, or find it through Analog Devices, Inc Information page.
Q: Are the AD's LT8645SIV#PBF price and stock displayed on the platform accurate?
The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT8645SIV#PBF, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of LT8645SIV#PBF?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LT8645SIV#PBF we delivered, we will accept the replacement or return of the LT8645SIV#PBF only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of LT8645SIV#PBF.
(3)The LT8645SIV#PBF is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as LT8645SIV#PBF datasheet pdf, LT8645S pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Analog Devices, Inc

AD
Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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