HTC LM2576HVT -ADJ

Mfr. Part

LM2576HVT-ADJ

Manufacturer

HTC

Y-IC is a quality distributor of HTC. We supply original parts and deliver the best products and services to our customers.

Detailed Description

High-voltage step-down switching regulator

Adjustable output buck converter with integrated power switch

3 A output current, fixed 52 kHz operation

Simple external parts, stable and proven design

Category Integrated Circuits, Specialized ICs

Key Features

High input voltage handling up to 60 V HV variant

Adjustable output from about 1.23 V to about 37 V

3 A continuous output current capability

Fixed 52 kHz switching frequency for predictable behavior

Built-in thermal shutdown and current limiting for protection

Requires only an inductor, a diode, and output capacitors

On or Off control pin for low power shutdown

Available in standard 5-pin power packages used widely in industry

Broad operating temperature options depending on grade

Large ecosystem of reference designs and application notes

Key Advantages

Easy to design with minimal external components

Handles wide input voltage ranges and industrial transients

Robust, reliable, and widely adopted platform

Cost-effective power solution with high availability across suppliers

Drop-in compatible options exist for many footprints in the LM2576HV family

Good efficiency for non-synchronous architecture, often 75 to 85 percent depending on VIN and VOUT

Supports many rails and loads in industrial and automotive systems

Packaging

Package types commonly used TO-220-5 through-hole and TO-263-5 D2PAK surface-mount

Material epoxy-molded plastic body with copper leadframe and metal tab for heat dissipation

Typical size TO-220 body roughly 10 x 9.7 x 4.7 mm, overall height with leads and tab larger; TO-263-5 D2PAK footprint roughly 10 x 15 mm on PCB

Pin configuration standard 5-pin layout 1 VIN, 2 Switch Output, 3 GND, 4 Feedback, 5 On or Off

Thermal characteristics metal tab aids heat removal; typical junction-to-case thermal resistance for these packages is low and supports heatsink or large copper area; actual values depend on the specific package and board layout

Electrical properties built-in 3 A switch, 52 kHz oscillator, 1.23 V reference, current limit and thermal shutdown; output ripple and regulation depend on chosen inductor and capacitors

Vendor code 799 shown in the input may be a vendor-specific case code; please check our product page or the datasheet to confirm exact package and dimensions for your ordering code

Lifecycle

Status widely available and actively used across many industries. No widely publicized end-of-life notice as of the latest market check

Direct or close equivalents and alternatives

- Texas Instruments LM2576HV-ADJ direct functional and pin-compatible part in the LM2576 HV family

- Texas Instruments LM2596HV-ADJ 3 A buck, 150 kHz switching, similar function with smaller magnetics, check pinout

- Unisonic Technologies UTC LM2576HVT-ADJ HV variant in the same family, check pinout and package

- KEC KIA2576H-ADJ HV family member, often pin-compatible, verify details

- Microchip MIC4576-ADJ 3 A buck regulator with similar function; verify input voltage rating and pinout for your design

- Newer 60 V synchronous buck regulators from TI, ADI, onsemi, and ST can be functional alternatives when higher efficiency or smaller magnetics are needed; these typically are not pin-compatible

If you need strict drop-in compatibility or have special lifecycle requirements, please contact our sales team via the Y-IC website for the latest options and cross-reference support

Key Application Areas

Industrial power rails 24 V or 48 V down to 12 V, 9 V, 5 V, 3.3 V

Automotive systems 12 V or 24 V to logic rails and sensor supplies

Telecom and networking equipment intermediate bus to point-of-load

Motor, pump, and valve controllers auxiliary low-voltage rails

LED drivers using buck topology where a constant current stage is added

Test and measurement instruments regulated internal supplies

Appliances and building automation robust power modules

Embedded systems and single-board computers external high to low conversion

Datasheet

Y-IC hosts the most authoritative datasheet for this product model on our website. We recommend downloading the datasheet from the current page for the latest specifications, package details, and design guidelines.

Request for Quotation Now

Get a Quote on Y-IC today. Large stock available now and fast delivery. Learn More on the product page and lock in pricing with our Limited Time Offer. Our team is ready to help with selection, crosses, and technical support.