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LT8640S

Name: LT8640S
Brand: ADI
SKU: JT24-LT8640S
Price: 0.0001 USD
Availability: InStock
Rating: 5 (1 reviews)

42V, 6A Synchronous Step-Down Silent Switcher 2 with 2.5μA Quiescent Current

Manufacturer :	Analog Devices, Inc
Package/Case :	24-Lead LQFN (4mm x 4mm x 0.94mm w/ EP)
Product Categories :	Step-Down (Buck) Regulators ; Micropower Buck Regulators
Datasheet:	LT8640S Datasheet (PDF)
RoHs Status:	Lead free / RoHS Compliant
In-stock:	3891

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LT8640S Product Details

The LT�8640S synchronous step-down regulator features second generation Silent Switcher architecture designed to minimize EMI/EMC emissions while delivering high efficiency at high switching frequencies. This includes the integration of bypass capacitors to optimize all the fast current loops inside and make it easier to achieve advertised EMI performance by reducing layout sensitivity. This performance makes the LT8640S ideal for noisesensitive 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 30ns minimum on-time allows high stepdown ratios even at high switching frequencies. Burst Mode operation enables ultralow standby current consumption, forced continuous mode can control frequency harmonics across the entire output load range, or spread spectrum operation can further reduce EMI/EMC emissions. Soft-start and tracking functionality is 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 LT8640S.

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 96% Efficiency at 1MHz, 12VIN to 5VOUT
Up to 95% Efficiency at 2MHz, 12VIN to 5VOUT

Wide Input Voltage Range: 3.4V to 42V
6A Maximum Continuous, 7A Peak Output
Ultralow Quiescent Current Burst Mode® Operation

2.5μA IQ Regulating 12VIN to 3.3VOUT (LT8640S)
Output Ripple < 10mVP-P

External Compensation: Fast Transient Response and Current Sharing (LT8643S)
Fast Minimum Switch On-Time: 30ns
Low Dropout Under All Conditions: 100mV at 1A
Forced Continuous Mode
Adjustable and Synchronizable: 200kHz to 3MHz
Output Soft-Start and Tracking
Small 24-Lead 4mm × 4mm LQFN Package

Applications

Automotive and Industrial Supplies
General Purpose Step-Down

Technical Parameters

Number of Outputs
1
Vinmin | V
3.4
Vinmax | V
42
Output Currenttyp | A
6
Isupplytyp | A
1.7µ
Monolithic
Yes
Synchronous
Yes

LT8640S Datasheet

LT8640S Technical Documentation/Data sheet

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LT8640S Related Products

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Estimated Delivery Time: Dec 10 - Dec 15 days (choose Expedited at checkout).

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Shipping

Shipping Type
Ship Fee
Lead Time
DHL
$20.00-$40.00 (0.50 KG)
2-5 days
Fedex
$20.00-$40.00 (0.50 KG)
3-7 days
UPS
$20.00-$45.00 (0.50 KG)
2-5 days
TNT
$25.00-$65.00 (0.50 KG)
2-5 days
EMS
$25.00-$45.00 (0.50 KG)
5-14 days
REGISTERED AIR MAIL
$2.00-$3.00 (0.10 KG)
7-30 days

Processing Time：Shipping fee depend on different zone and country.

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Terms of payment
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Credit Card
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We provide high quality products, thoughtful service and after sale guarantee

We have rich products, can meet your various needs.
Minimum order quantity starts from 1pcs.
Lowest international shipping fee starts from US$2.00.
90 days quality guarantee for all products.

Packing

Step1: Products
Step2: Vacuum Packaging
Step3: Anti-Static Bag
Step4: Individual Packaging
Step5: Packaging Boxes
Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Guarantees

1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

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 LT8640S is the original manufacturer or agent of ADI?: We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their LT8640S devices; we pay more attention to the channels and quality of LT8640S products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LT8640S chips? Including ADI original factory information, Step-Down (Buck) Regulators ; Micropower Buck Regulators application, LT8640S 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 ADI's LT8640S price and stock displayed on the platform accurate?: The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT8640S, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?: Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?: TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?: Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
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 LT8640S?: 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 LT8640S we delivered, we will accept the replacement or return of the LT8640S 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 LT8640S.
(3)The LT8640S 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 LT8640S datasheet pdf, LT8640S pin diagram?: Need any After-Sales service, please feel free contact us: sales@jotrin.com

Analog Devices, Inc

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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