MAX1845EEI

Name: MAX1845EEI
Brand: Maxim Integrated
Rating: 4.5 (10 reviews)
Author: Lisleapex

MAX1845EEI+ ROHS Certified Converters

5,935 Effective Inventory

MAX1845EEI

Effective Inventory5,935

MAX1845EEI+ ROHS Certified Converters

Manufacturer Part # : MAX1845EEI
Package/Case: SSOP-28
Brand: Maxim Integrated
Product Categories : DC DC Switching Controllers
Series : MAX1845

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All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

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About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

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Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

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MAX1845EEI DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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MAX1845EEI Details

The MAX1845EEI is a high-efficiency synchronous step-down DC-DC converter from Maxim Integrated, designed for powering various electronic devices. This converter offers a wide input voltage range and high output current capability, making it suitable for a wide range of applications. It features integrated MOSFETs for increased efficiency and compact PCB design.

Pinout

1 (VIN): Input Voltage
2 (SW): Switch Node
3 (GND): Ground
4 (FB): Feedback Voltage
5 (EN): Enable
6 (PG): Power Good
7 (VOUT): Output Voltage

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

High Efficiency: Provides high efficiency conversion for optimized power management.
Wide Input Voltage Range: Accepts a wide range of input voltages for versatile applications.
High Output Current: Capable of delivering high output current for powering various loads.
Integrated MOSFETs: Integrated MOSFETs improve efficiency and reduce external component count.
Compact Design: Compact package and layout for space-constrained applications.

Application

Portable Devices: Ideal for powering portable electronic devices due to its high efficiency and compact size.
Embedded Systems: Used in embedded systems for efficient power conversion and distribution.
Industrial Applications: Suitable for industrial applications requiring stable and efficient power supplies.

Where to Use

The MAX1845EEI is recommended for applications that demand high efficiency power conversion, such as portable devices, embedded systems, and industrial equipment. Its wide input voltage range and high output current capability make it versatile for various electronics applications.

How to Use

Connect the MAX1845EEI to your circuit by supplying the VIN pin with the input voltage. Ensure proper ground connection to the GND pin. The SW pin is the switch node for power transfer, and the FB pin provides feedback for regulating the output voltage. Use the EN pin to enable or disable the converter. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the MAX1845EEI demonstrates how to connect the DC-DC converter to your system for efficient power conversion. It includes connections for input voltage, output voltage, feedback, and enable pins, ensuring proper operation and performance.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LTC3639: A comparable synchronous step-down converter with similar features and performance.
TPS54360: An alternative DC-DC converter offering equivalent functionality and efficiency.

Complementary

The MAX1845EEI can be complemented by the MAX1856, which provides additional features such as higher output current and voltage range, suitable for more demanding power requirements.

When selecting complementary components, ensure compatibility and consider overall system power needs for efficient operation.

Frequently Asked Questions

Q: What is the efficiency rating of the MAX1845EEI?

A: The MAX1845EEI offers high efficiency conversion, typically above 90%. For precise efficiency values under different load conditions, please refer to the datasheet.

Q: Can the MAX1845EEI be used in battery-powered devices?

A: Yes, the MAX1845EEI is well-suited for battery-powered applications due to its high efficiency and wide input voltage range, making it ideal for maximizing battery life.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Package	Tube	Product Status	Obsolete
Output Type	Transistor Driver	Function	Step-Down
Output Configuration	Positive	Topology	Buck
Number of Outputs	2	Output Phases	1
Voltage - Supply (Vcc/Vdd)	4.5V ~ 5.5V	Frequency - Switching	200kHz, 300kHz, 420kHz, 540kHz
Synchronous Rectifier !	Yes	Clock Sync !	No
Control Features	Current Limit, Enable, On Time Control, Power Good	Operating Temperature !	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Package / Case	28-SSOP (0.154", 3.90mm Width)
Supplier Device Package	28-QSOP	Base Product Number	MAX1845

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification MAX1845EEI PDF Download

FAQs

What is MAX1845EEI?

The MAX1845EEI is a high-efficiency, quad-output, step-down DC-DC converter designed by Maxim Integrated. It is ideal for applications requiring multiple power supply rails with high efficiency and low quiescent current, such as networking equipment, industrial automation, and embedded systems.

How Does MAX1845EEI Work?

The MAX1845EEI works by efficiently converting a higher input voltage to multiple lower output voltages using a step-down (buck) topology. It features integrated power MOSFETs and a high switching frequency to minimize external component count and reduce board space. The converter provides stable, regulated output voltages for powering various components within a system.

How Many Pins does MAX1845EEI have and What are the Functions of the Pinout Configuration?

The MAX1845EEI is housed in a 28-pin QSOP (Quarter Size Outline Package) package. The pinout configuration includes:

VIN: Input voltage supply pin.
PGND: Power ground pin.
SW1, SW2, SW3, SW4: Switching node pins for the four buck converters.
FB1, FB2, FB3, FB4: Feedback pins for voltage regulation.
EN1, EN2, EN3, EN4: Enable pins for each converter.
BOOT1, BOOT2, BOOT3, BOOT4: Bootstrap capacitors connection pins.
POR: Power-on reset output pin.
SYNC: Synchronization input pin.
PGOOD: Power good output pin.

What are the Pros and Cons of MAX1845EEI?

Pros:

Quad-Output: Provides four regulated output voltages, reducing the need for additional converters.
High Efficiency: Offers high efficiency conversion, minimizing power dissipation and reducing thermal concerns.
Integrated MOSFETs: Integrated power MOSFETs simplify the external component count and PCB layout.
Power Good Output: Monitors the status of the outputs, providing a signal to the system when the outputs are within regulation.
Synchronization: Allows for external synchronization to reduce EMI concerns in sensitive applications.

Cons:

Complexity: Quad-output converters may require careful consideration of load sharing and output voltage accuracy.
External Components: Although integrated, some external components such as inductors and capacitors are still required.

Are There Any Equivalents/Alternatives to MAX1845EEI for Recommendation?

A similar alternative to the MAX1845EEI is the TPS54620 from Texas Instruments, which also offers quad-output capability.
Alternatives to the MAX1845EEI include the LT8614 from Analog Devices and the ISL95836 from Renesas Electronics.