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LT3840EUFE#PBF

Part No LT3840EUFE#PBF
Manufacturer Linear Technology
Catalog PMIC - Voltage Regulators - DC DC Switching Controllers
Description IC REG CTRLR BUCK 38QFN / DC/DC Cntrlr Single-OUT Step Down 1000kHz Automotive 38-Pin QFN EP Tube
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Categories Integrated Circuits (ICs)
Manufacturer Linear Technology
Packaging Tube
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive or Negative
Topology Buck
Number of Outputs 1
Output Phases 1
Supply Voltage 2.5 V ~ 60 V
Frequency - Switching 50kHz ~ 1MHz
Duty Cycle (Maximum) 99%
Synchronous Rectifier Yes
Clock Sync Yes
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature Range -40°C ~ 125°C (TJ)
Package 38-WFQFN Exposed Pad
Manufacturer Package 38-QFN (4x6)
Win Source Part Number 781307-LT3840EUFE#PBF
Popularity Medium
Supply and Demand Status Limited
Family Name LT3840
Introduction Date February 10, 2014
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian LT3840EUFE#PBF CAD Model

Description

Product Overview: LT3840EUFE#PBF

The LT3840EUFE#PBF is a high-performance, synchronous step-down DC/DC controller designed by Linear Technology, a leader in the field of analog integrated circuits. This advanced power management component is engineered to meet the stringent requirements of modern electronic devices, providing efficient power conversion and robust feature set in a compact form factor.

The LT3840EUFE#PBF operates over a wide input voltage range of 4V to 60V, making it versatile for use in a variety of applications, from automotive to industrial systems. It can deliver continuous output currents up to several amps, depending on the external components used and thermal conditions, and is capable of generating output voltages as low as 0.8V, which is essential for powering the latest low-voltage digital ICs.

One of the key features of the LT3840EUFE#PBF is its synchronous rectification topology, which enhances efficiency by minimizing diode losses and allows for the use of low RDS(on) MOSFETs. This results in reduced heat generation and improved thermal performance, critical for reliability in high-power and dense PCB layouts.

The controller also includes an integrated boost diode, a feature that simplifies the circuit and saves board space. Its current mode control provides excellent line and load transient response, ensuring stable operation under varying conditions. The LT3840EUFE#PBF also boasts programmable switching frequency, which gives designers the flexibility to optimize their designs for efficiency or component size.

Additional features include a precise 0.8V reference with ±1% accuracy over the full temperature range, programmable soft-start, overcurrent protection, and thermal shutdown. The device comes in a thermally efficient 28-lead TSSOP package with exposed pad for enhanced thermal dissipation.

Whether it's for power supply designs in telecommunications, automotive, industrial control, or computing applications, the LT3840EUFE#PBF by Linear Technology stands as a reliable and efficient solution for high-performance DC/DC conversion.

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Pricing & Ordering

Quantity Unit Price Ext. Price
5+ $10.6631 $53.3155
12+ $8.7493 $104.9916
18+ $8.4758 $152.5644
25+ $8.2024 $205.0600
32+ $7.9290 $253.7280
43+ $7.1088 $305.6784
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
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Availability: 3,537 pieces
MOQ: 5 pcs
Order Increment : 1 pcs
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