My Inquiry
My Account
Texas Instruments LM2575HVS-5.0/NOPB
- Part No.:
- LM2575HVS-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
LM2575HVS-5.0/NOPB.pdf
- Description:
- IC REG BUCK 5V 1A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:2,610
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2575HVS-5.0/NOPB from Texas Instruments is a monolithic 1A step-down (buck) switching voltage regulator in a 5-lead surface-mount TO-263 (DDPAK) package, delivering a fixed 5.0V output with ±4% tolerance over 8V–60V input, 0.2A–1A load, and −40°C to +125°C junction temperature. It integrates oscillator, PWM control, thermal shutdown, cycle-by-cycle current limiting, and TTL-compatible shutdown - enabling compact, high-efficiency DC/DC conversion for industrial power rails.
For engineers reviewing the LM2575HVS-5.0/NOPB datasheet, LM2575HVS-5.0/NOPB pinout, LM2575HVS-5.0/NOPB application, or LM2575HVS-5.0/NOPB equivalent, this device serves as a drop-in replacement for linear regulators in space-constrained, thermally demanding applications requiring wide-input, fixed-output buck conversion without external compensation.
Technical Context
The LM2575HVS-5.0/NOPB implements a fixed-frequency (52 kHz) current-mode PWM architecture with internal 1.23V feedback reference, integrated 3.0A peak-current switch, and built-in thermal shutdown. Its high-voltage rating (60V max input) and robust protection suite - including cycle-by-cycle current limit and thermal foldback - enable reliable operation in automotive and industrial environments where input transients exceed standard 40V regulators.
Unlike adjustable variants, the LM2575HVS-5.0/NOPB uses factory-trimmed internal resistor dividers to set output at 5.0V, eliminating external feedback components. The TO-263 package provides low θJA = 37°C/W (with ≥1 in² copper), supporting 1A continuous output without forced air or heatsink under typical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±4% over full operating range (8V–60V input, 0.2A–1A load, −40°C to +125°C) |
| Input Voltage Range | 8V to 60V - supports 24V/36V/48V industrial buses and automotive cold-crank scenarios |
| Output Current | 1A continuous - sufficient for powering microcontrollers, sensors, and logic rails without derating |
| Switching Frequency | 52 kHz fixed - enables use of low-cost, high-saturation-current inductors (e.g., 330 µH) and reduces EMI filtering complexity |
| Efficiency | 77% at VIN = 12V, IOUT = 1A - reduces thermal load vs. linear regulators (e.g., ~4W less dissipation than 7805 at same condition) |
| Shutdown Current | 50 µA typical - enables low-power standby modes in battery-backed or energy-conscious systems |
| Thermal Resistance | θJA = 37°C/W (with ≥1 in² PCB copper) - allows full 1A output at +85°C ambient without heatsink |
Pinout & Package
LM2575HVS-5.0/NOPB is housed in a 5-lead DDPAK/TO-263 surface-mount package (package code KTT0005B), featuring an exposed thermal pad for enhanced heat transfer to the PCB. Pin numbering follows standard TO-263 orientation (top view, tab left, pin 1 bottom-left).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Input | VIN supply connection | Accepts 8–60V unregulated DC; requires local 47–100 µF aluminum/tantalum bypass capacitor |
| 2 - Output | Regulated 5.0V switching node | Drives external inductor and catch diode; connects to output capacitor (≥220 µF) and load |
| 3 - Ground | Power and signal reference | Common return for internal circuitry, switch, and feedback; must be tied directly to thermal pad |
| 4 - Feedback | Internal voltage sense point | Internally connected to 5.0V divider; no external components required - distinguishes fixed from adjustable versions |
| 5 - ON/OFF | TTL-compatible enable control | Logic-high (>2.2V) enables regulation; logic-low (<0.8V) disables output and reduces quiescent current to 50 µA |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3.0A peak-current switch | Supports 1A continuous output with margin for transient loads and thermal headroom |
| Wide 8–60V input range | Eliminates need for pre-regulator in 24V/36V/48V systems and withstands automotive load-dump events |
| Fixed 5.0V output with no external resistors | Reduces BOM count, layout area, and calibration risk vs. adjustable buck controllers |
| 52 kHz fixed-frequency oscillator | Enables predictable EMI spectrum and simplifies filter design using off-the-shelf inductors |
| Thermal shutdown + current limiting | Prevents damage during overload, short-circuit, or inadequate heatsinking - no external protection needed |
| TTL shutdown with 50 µA standby | Allows system-level power sequencing and ultra-low-power sleep states in portable/remote devices |
Applications
| Industrial PLC I/O Power | Automotive Body Control Module |
|---|---|
|
Use Scenario: Providing isolated 5V rail for digital I/O expansion cards in programmable logic controllers operating from 24V DC field bus. IC Role / Device Role / Timing Role: Primary buck converter generating stable 5V for microcontroller, optocouplers, and level-shifters. Use Value: Withstands 60V transients per ISO 7637-2; 1A output powers up to 8 isolated channels; TO-263 thermal performance eliminates heatsink in convection-cooled enclosures. |
Use Scenario: Generating 5V supply for microcontroller, CAN transceiver, and sensor interfaces in body control units powered from 12V vehicle battery. IC Role / Device Role / Timing Role: Main DC/DC regulator converting battery voltage to logic rail, with shutdown controlled by MCU wake signal. Use Value: 8V minimum input supports cold-crank down to 6.5V; 50 µA standby enables <100 µA system sleep current; integrated protection avoids discrete fuse/diode overhead. |
| Medical Point-of-Care Instrument | Telecom Remote Radio Unit |
|
Use Scenario: Delivering clean 5V to FPGA, ADCs, and display controller in portable diagnostic equipment powered by 24V Li-ion pack. IC Role / Device Role / Timing Role: High-efficiency intermediate regulator stepping down from main battery to logic voltage domain. Use Value: 77% efficiency minimizes self-heating in sealed enclosure; fixed 5V output ensures consistent timing margins for high-speed digital interfaces. |
Use Scenario: Supplying 5V to RF front-end ICs and baseband processors in outdoor small-cell radios powered from 48V PoE or telecom rectifier. IC Role / Device Role / Timing Role: Primary buck stage converting 48V backplane to 5V intermediate rail before LDO post-regulation. Use Value: 60V absolute max input accommodates 48V +20% surge; TO-263 package enables direct thermal coupling to metal chassis for passive cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2575T-5.0/NOPB | TO-220 through-hole package; higher θJA = 65°C/W (no heatsink); identical electrical specs | Preferred for prototyping, manual assembly, or legacy through-hole designs; requires heatsink above ~0.5A | Select when mechanical compatibility with existing TO-220 footprints is required and thermal budget permits heatsink use. |
| LM2596S-5.0 | Higher 150 kHz switching frequency; 3A output capability; different pinout and external compensation | Better suited for size-sensitive designs needing smaller inductors/caps; not pin-compatible or drop-in | Choose when board space is constrained and higher efficiency at light loads is critical - but expect layout redesign and new component selection. |
Compared with LM2575T-5.0/NOPB, LM2575HVS-5.0/NOPB delivers identical regulation performance in a surface-mount package with superior thermal resistance (37 vs. 65°C/W), enabling higher ambient operation without heatsink; versus LM2596S-5.0, it trades higher frequency for proven ruggedness, simpler design, and direct compatibility with legacy LM2575 layouts.
Availability
LM2575HVS-5.0/NOPB is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, medical instrumentation, and telecom infrastructure requiring stable component supply across extended temperature and voltage ranges.
Supply support for LM2575HVS-5.0/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-reliability power conversion ICs.
The LM2575HV product line was designed specifically for industrial and automotive applications demanding wide-input voltage operation (up to 60V), robust fault protection, and minimal external component count in cost-sensitive, thermally challenging environments.
FAQ
What is the maximum input voltage rating for LM2575HVS-5.0/NOPB?
The LM2575HVS-5.0/NOPB has an absolute maximum input voltage of 63V and a recommended operating maximum of 60V. This high-voltage rating enables use in 48V industrial systems and automotive applications subject to load-dump transients, while maintaining full 1A output capability across the 8V–60V operating range specified in the datasheet.
Does LM2575HVS-5.0/NOPB require external feedback resistors?
No, LM2575HVS-5.0/NOPB does not require external feedback resistors. It is a fixed-output variant with internal resistor dividers trimmed to deliver 5.0V ±4%. Pin 4 (Feedback) is internally connected and must remain unconnected - unlike the adjustable LM2575HV-ADJ version, which requires external R1/R2 to set VOUT.
What package type is used for LM2575HVS-5.0/NOPB?
LM2575HVS-5.0/NOPB uses a 5-lead DDPAK/TO-263 surface-mount package (TI package code KTT0005B), featuring an exposed thermal pad for efficient heat transfer to the PCB. This package offers θJA = 37°C/W with ≥1 in² copper, significantly better than the TO-220 variant's 65°C/W, enabling higher power density and reduced thermal management overhead.
Can LM2575HVS-5.0/NOPB be used in automotive applications?
Yes, LM2575HVS-5.0/NOPB is suitable for automotive applications due to its −40°C to +125°C operating junction temperature range, 60V input capability (covering cold-crank and load-dump conditions per ISO 7637-2), integrated thermal shutdown, and cycle-by-cycle current limiting. It is commonly deployed in body control modules, infotainment power supplies, and sensor hubs.
What is the typical efficiency of LM2575HVS-5.0/NOPB at full load?
LM2575HVS-5.0/NOPB achieves 77% typical efficiency at VIN = 12V, VOUT = 5.0V, and IOUT = 1A. Efficiency rises with higher input-to-output voltage ratios - e.g., 88% at VIN = 15V for 12V output versions - and remains stable across temperature and load due to its current-mode control architecture and low RDS(on) internal switch.
LM2575HVS-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 52kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-5)
LM2575HVS-5.0/NOPB FAQ
1.How can I place an order for LM2575HVS-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2575HVS-5.0/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM2575HVS-5.0/NOPB reliable?
The price and inventory of LM2575HVS-5.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2575HVS-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM2575HVS-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2575HVS-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2575HVS-5.0/NOPB?
LM2575HVS-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2575HVS-5.0/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM2575HVS-5.0/NOPB?
For technical support, including LM2575HVS-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2575HVS-5.0/NOPB requirements.
6.How does Aetrix verify that LM2575HVS-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2575HVS-5.0/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM2575HVS-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM2575HVS-5.0/NOPB?
All LM2575HVS-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2575HVS-5.0/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM2575HVS-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM2575HVS-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2575HVS-5.0/NOPB Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
