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LT8645SIV#PBF
IC REG BUCK ADJUSTABLE 8A 32LQFN
- Manufacturer
- Mfr. Part #LT8645SIV#PBF
- Package 32-TFQFN
- Datasheet LT8645SIV#PBF DataSheet
- In Stock6232
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Specifications
| Package | Tray |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.4V |
| Voltage-Input(Max) | 65V |
| Voltage-Output(Min/Fixed) | 0.97V |
| Voltage-Output(Max) | 12V |
| Current-Output | 8A |
| Frequency-Switching | 200kHz ~ 2.2MHz |
| SynchronousRectifier | Yes |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 32-TFQFN Exposed Pad |
Overview
Description
Key features include a fast transient response, low quiescent current, and low dropout operation, which are crucial for battery-powered applications. The LT8645SIV#PBF operates at a user-programmable fixed frequency or can be synchronized to an external clock, providing design flexibility and the ability to optimize electromagnetic interference (EMI) performance.
The integrated MOSFETs and current-mode architecture allow for a compact solution with fewer external components, simplifying the design process. Additional features like overcurrent protection, thermal shutdown, and a precision enable pin further enhance its reliability and ease of use. The device comes in a compact 4mm x 4mm LQFN package, making it suitable for space-constrained applications.
Features
1. Input Voltage Range: Operates from a 3.4V to 65V input voltage range, making it suitable for automotive and industrial applications.
2. Output Current: Capable of delivering up to 8A of continuous output current.
3. Switching Frequency: Offers a programmable switching frequency from 200kHz to 3MHz, allowing optimization for efficiency or component size.
4. Low Quiescent Current: Features low quiescent current, enhancing battery life in battery-powered applications.
5. Burst Mode® Operation: Supports Burst Mode operation to improve efficiency at light loads.
6. Fast Transient Response: Designed with a fast transient response to changes in load or input voltage.
7. Low Dropout: Features low dropout operation, extending the effective voltage range in low-voltage applications.
8. Protection Features: Includes overvoltage, overcurrent, and thermal shutdown protections.
9. Compact Package: Comes in a thermally enhanced 4mm x 6mm LQFN package, enabling compact designs.
These features make the LT8645SIV#PBF suitable for applications requiring efficient power conversion with wide input voltage ranges and high output currents.
Package
Pinout
The primary function of the LT8645SIV#PBF is to provide efficient step-down voltage conversion, capable of delivering up to 8A of continuous output current. It operates from an input voltage range of 3V to 65V, making it suitable for various applications, including automotive, industrial, and communications systems. The regulator features a fast minimum on-time of 40ns, allowing high switching frequencies even at high step-down ratios. It also includes features like a silent switcher architecture for reduced EMI emissions, internal compensation, and a low dropout mode to improve efficiency.
Manufacturer
Application
Equivalent
1. Texas Instruments: TPS543B20 – A synchronous buck converter.
2. Microchip Technology: MCP16311/2 – A high-efficiency buck converter.
3. STMicroelectronics: L6983 – A synchronous step-down regulator.
4. Maxim Integrated: MAX20096 – A synchronous buck controller.
When choosing an equivalent, verify the specifications like input voltage, output current, switching frequency, and package to ensure compatibility with your application.
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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