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Name: LTM4644MPY
Brand: Analog Devices Inc.
SKU: LTM4644MPY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. LTM4644MPY

Part No.:: LTM4644MPY

Manufacturer:: Analog Devices Inc.

Package:: 77-BBGA Module

Datasheet:: LTM4644MPY.pdf

Description:: DC DC CONVERTER 4X0.6-5.5V

In Stock:: 147

Quantity:: Add To Cart

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LTM4644MPY Specifications

Package/Case:
77-BBGA Module
Packaging:
Tray
Series:
µModule®
ProductStatus:
Active
Type:
Non-Isolated PoL Module
NumberofOutputs:
4
Voltage-Input(Min):
4V
Voltage-Input(Max):
14V
Voltage-Output1:
0.6 ~ 5.5V
Voltage-Output2:
0.6 ~ 5.5V
Voltage-Output3:
0.6 ~ 5.5V
Voltage-Output4:
0.6 ~ 5.5V
Current-Output(Max):
4A, 4A, 4A, 4A
Power(Watts):
-
Voltage-Isolation:
-
Applications:
ITE (Commercial)
Features:
OCP, OTP, OVP
OperatingTemperature:
-55°C ~ 125°C
Efficiency:
-
MountingType:
Surface Mount
Size/Dimension:
0.59 L x 0.35 W x 0.20 H (15.0mm x 9.0mm x 5.0mm)
ControlFeatures:
ApprovalAgency:

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LTM4644MPY information

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LTM4644MPY Typical application Circuitry

LTM4644MPY

The LTM4644MPY is a quad DC/DC step-down micro-module regulator designed for high efficiency and compact power conversion. It integrates four independent step-down regulators in a single package, making it ideal for applications that require multiple regulated voltages with high performance and minimal board space.

Typical applications for the LTM4644MPY include telecommunications systems, industrial automation, data center servers, and medical equipment where multiple voltage rails are needed for various components such as processors, memory, and sensors.

Key features and specifications of the LTM4644MPY include a wide input voltage range (typically from 4.5V to 15V), an adjustable output voltage range (typically from 0.6V to 5.5V per channel), high efficiency, integrated switching components, and the ability to synchronize multiple modules for parallel operation.

Designing a circuit with the LTM4644MPY for a telecommunications system requires careful attention:

1. Input Voltage Connection: Connect the VIN pins of the LTM4644MPY to the input voltage source, ensuring that it is within the specified input voltage range for optimal performance.

2. Output Voltage Setting: Connect resistor divider networks from each VOUT pin to the ground to set the desired output voltages for each channel. The values of the resistors can be calculated based on the recommended formula provided in the datasheet.

3. Output Capacitor Connection: Attach output capacitors between each VOUT pin and the ground to stabilize the output voltages and reduce ripple. The value of each capacitor should be selected based on the desired ripple voltage and the load current for each channel.

4. Input Capacitor Connection: Connect an input capacitor between the VIN pins and the ground to filter the input voltage and improve transient response. The value of the capacitor should be chosen based on the input voltage ripple and the switching frequency.

5. Grounding: Ensure that the GND pin of the LTM4644MPY is properly connected to the ground of the circuit. This provides a reference point for the voltage levels and ensures stable operation.

6. Thermal Consideration: Consider the thermal performance of the LTM4644MPY in the circuit design, especially in applications with high ambient temperatures or high power dissipation. To avoid overheating, appropriate cooling techniques like ventilation or heatsinks might be required.

7. Synchronization: If multiple LTM4644MPY modules are used in parallel for higher current capability or load sharing, connect the SYNC pins together and to an external clock source to ensure synchronized switching and minimize noise.

By following these guidelines, designers can effectively integrate the LTM4644MPY into telecommunications systems, leveraging its quad-channel capability and high-efficiency power conversion for compact and reliable power delivery to multiple voltage rails.

LTM4644MPY FAQ

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6. What is the process for return or replacement of LTM4644MPY?

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 LTM4644MPY we delivered, we will accept the replacement or return of the LTM4644MPY 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 LTM4644MPY.

(3)The PartNo 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