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LMR51603Y3DBVR

The Texas Instruments LMR51603Y3DBVR is a synchronous buck converter designed for industrial applications. It operates with a wide input voltage range and provides up to 300mA of continuous output current.

✓ Total Stock: 45 pcs

$ Price Range: $0.35

LMR51603Y3DBVR 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
MW.FEP S.p.A. ✓ Non-Authorised Inventory information	45 pcs On Request	45 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

LMR51603Y3DBVR Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments

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LMR51603Y3DBVR Description

Short technical summary and product information.

The LMR51603Y3DBVR from Texas Instruments is a versatile synchronous buck converter suitable for rugged industrial applications. It accepts a wide input voltage range from 4V to 65V, making it adaptable for various power conditioning needs from unregulated sources.

This device delivers up to 300mA of continuous output current and features integrated synchronous rectification for improved efficiency. It operates at fixed switching frequencies of 400kHz and 1.1MHz, allowing for smaller inductor sizes and a compact design. The converter includes essential protection features such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown.

Designed for ease of use, the LMR51603Y3DBVR has internal compensation and supports monotonic start-up with a prebiased output. It is available in a pin-to-pin compatible SOT-23 package, measuring 2.90mm x 2.80mm, facilitating small design sizes.

Key electrical characteristics include a wide input voltage range, a maximum output current of 300mA, and a junction temperature range of -40°C to 150°C. The device also offers options for Pulse Frequency Modulation (PFM) for light-load efficiency and Forced Pulse Width Modulation (FPWM) for constant frequency operation and reduced output voltage ripple.

LMR51603Y3DBVR Quick Information

Product Type: Synchronous Buck Converter

Canonical Name: LMR51603Y3DBVR Synchronous Buck Converter

Subcategory: Synchronous Buck Converter

LMR51603Y3DBVR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

LMR51603Y3DBVR Estimated Pricing

Qty	Low	High
1+	$0.35	$0.35

Estimated market price range - modelled values for guidance only, not live distributor offers.

LMR51603Y3DBVR Features

Wide 4V to 65V input voltage range.
300mA continuous output current capability.
Integrated synchronous rectification for efficiency.
Short-circuit and thermal shutdown protection.
Compact SOT-23 package for small designs.

LMR51603Y3DBVR Applications

Suitable for major appliances.
Used in PLC, DCS, and PAC systems.
Ideal for smart meter power delivery.
Designed for industrial power conditioning.

LMR51603Y3DBVR FAQs

6 frequently asked questions generated from this part’s specifications.

What is the input voltage range for the LMR51603Y3DBVR?

The input voltage range is from 4V to 65V.

What is the maximum continuous output current of the LMR51603Y3DBVR?

The LMR51603Y3DBVR can provide up to 300mA of continuous output current.

What is the operating junction temperature range for this buck converter?

The operating junction temperature range is -40°C to 150°C.

What package type is the LMR51603Y3DBVR supplied in?

It is supplied in a SOT-23-6 package.

Does the LMR51603Y3DBVR have short-circuit protection?

Yes, it features short-circuit protection with hiccup mode.

What are the switching frequencies available for the LMR51603Y3DBVR?

The device operates at fixed switching frequencies of 400kHz and 1.1MHz.