LTC3731IG The LTC3731IG is a PolyPhase® series DC-DC switching controller from Linear Technology/Analog Devices. It functions as a step-down buck regulator with positive output configuration.
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LTC3731IG

Available from 1 distributors
Mfr Name: LT
LT
The LTC3731IG is a PolyPhase® series DC-DC switching controller from Linear Technology/Analog Devices. It functions as a step-down buck regulator with positive output configuration.
✓ Total Stock: 2,446 pcs

LTC3731IG Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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2,446 pcs
2446 pcs On Request 1 On Request On Request 0441+ On Request On Request

LTC3731IG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
SVHC Present

LTC3731IG Description

Short technical summary and product information.

The LTC3731IG#PBF is an active DC-DC switching controller IC manufactured by Linear Technology/Analog Devices, part of the PolyPhase® series. This device is designed for step-down (buck) regulator applications with a positive output configuration. It operates with a supply voltage ranging from 3.8V to 7V and features a switching frequency between 225kHz and 680kHz.

 

The controller supports up to 3 outputs and 3 output phases, with a maximum duty cycle of 98.5%. It includes control features such as Enable, Phase Control, Power Good, and Soft Start. The LTC3731IG is housed in a 36-SSOP package, measuring 5.30mm in width.

 

This IC is suitable for various power management applications requiring efficient step-down voltage conversion. Its synchronous rectifier capability enhances efficiency. The operating temperature range is -40°C to 85°C (TA).

LTC3731IG Quick Information

Product Type: DC DC Switching Controller
Series: PolyPhase®
Canonical Name: LTC3731IG Buck Regulator DC-DC Controller IC
Subcategory: Power Management ICs

LTC3731IG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LTC3731IG Features

  • Step-down buck regulator IC.
  • Operates from 3.8V to 7V supply.
  • Switching frequency 225kHz to 680kHz.
  • Supports 3 outputs and 3 phases.
  • Packaged in 36-SSOP.

LTC3731IG Applications

  • 3-phase buck controller for high-current supplies
  • Used in point-of-load (POL) converters
  • Ideal for low-voltage CPU/GPU VRM designs
  • Suitable for telecom and networking power systems

LTC3731IG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the LTC3731IG?

The operating voltage range is 3.8 V to 7 V.

What is the switching frequency of the LTC3731IG?

The switching frequency ranges from 225 kHz to 680 kHz.

What is the maximum duty cycle for the LTC3731IG?

The maximum duty cycle is 98.5%.

What is the operating temperature range for the LTC3731IG?

The operating temperature range is -40°C to 85°C.

What package type is the LTC3731IG supplied in?

The LTC3731IG is supplied in a 36-SSOP package, typically in tube packaging.

What is the RoHS status of the LTC3731IG?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the LTC3731IG?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

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