MAX668EUB+T Allicdata Electronics
Allicdata Part #:

MAX668EUB+TTR-ND

Manufacturer Part#:

MAX668EUB+T

Price: $ 0.60
Product Category:

Integrated Circuits (ICs)

Manufacturer: Maxim Integrated
Short Description: IC REG CTRLR MULT TOP 10UMAX
More Detail: Boost, Flyback, SEPIC Regulator Positive, Isolatio...
DataSheet: MAX668EUB+T datasheetMAX668EUB+T Datasheet/PDF
Quantity: 5000
1 +: $ 0.60000
10 +: $ 0.58200
100 +: $ 0.57000
1000 +: $ 0.55800
10000 +: $ 0.54000
Stock 5000Can Ship Immediately
$ 0.6
Specifications
Frequency - Switching: 100kHz ~ 500kHz
Base Part Number: MAX668
Supplier Device Package: 10-uMAX
Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Operating Temperature: -40°C ~ 85°C (TA)
Control Features: Enable, Frequency Control
Serial Interfaces: --
Clock Sync: Yes
Synchronous Rectifier: No
Duty Cycle (Max): 90%
Series: --
Voltage - Supply (Vcc/Vdd): 3 V ~ 28 V
Output Phases: 1
Number of Outputs: 1
Topology: Boost, Flyback, SEPIC
Output Configuration: Positive, Isolation Capable
Function: Step-Up, Step-Up/Step-Down
Output Type: Transistor Driver
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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MAX668EUB+T Application Field and Working Principle

MAX668EUB+T belongs to the category of PMIC -- Voltage Regulators -- DC DC Switching Controllers. It’s a monolithic controller with dual power MOSFETs, and featuring overvoltage/undervoltage protection, current limiting, and thermal protection, etc. It provides a high-performance, cost-effective solution for a wide range of applications.

Applications

MAX668EUB+T is suitably used in a wide range of applications such as non-isolated synchronous buck converters, secondary side active clamps, bias supply sequencers, and PWM and DCM high current control loops. It is especially used when the output voltage is lower than the source voltage. For instance, it is used as a post-regulation module to achieve high-precision output voltage regulation without high-side power MOSFETs in VRM. Furthermore, it is also applied in server and other system platform which requires stringent transient response and tight line/load regulation.

Working principle

MAX668EUB+T operates in one switching mode and compliant with the conventional voltage-mode control architecture. Under this kind of architecture, it monitors and controls the inductor current which is provided by a sense resistor. The sensed inductor current and a reference voltage are compared with the comparator in the IC. Based on the comparison result, it adapts its duty ratio to form a closed-loop control so as to achieve stable and fast transient response with small output voltage ripple.

Apart from providing accurate power delivery, MAX668EUB+T also has many outstanding protection features. It has built-in undervoltage and overvoltage protection as well as current-limit and thermal protection, which greatly enhances the safety of application environment. On the other hand, the existing logic input pins enable autonomous operation in the form of on-off or PWM control.

Conclusion

In conclusion, MAX668EUB+T MMIC functions as a synchronous buck controller which provides a high-performance and cost-effective solution for various applications such as VRM post-regulation, secondary side active clamps, PWM and DCM high current control loops, etc. With its protection features and accuracy advantages, MAX668EUB+T is suitable to be used in various operating environment.

The specific data is subject to PDF, and the above content is for reference

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