My Inquiry
My Account
Texas Instruments LM2593HVT-5.0/NOPB
- Part No.:
- LM2593HVT-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-7 Formed Leads
- Datasheet:
-
LM2593HVT-5.0/NOPB.pdf
- Description:
- IC REG BUCK 5V 2A TO220-7
- Quantity:
- Payment:
- Shipping:
Inventory:2,144
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2593HVT-5.0/NOPB from Texas Instruments is a monolithic 150-kHz non-synchronous buck DC-DC converter delivering up to 2 A output current with ±4% output voltage accuracy, 5-V fixed output, and input voltage support up to 60 V. It integrates internal frequency compensation, soft-start, shutdown control, and out-of-regulation error flag - used in industrial power supplies requiring high-input-voltage step-down regulation.
For engineers reviewing the LM2593HVT-5.0/NOPB datasheet, LM2593HVT-5.0/NOPB pinout, LM2593HVT-5.0/NOPB application, or LM2593HVT-5.0/NOPB equivalent, key selection criteria include guaranteed 2-A load capability, 90-μA standby current in shutdown mode, 150-kHz fixed-frequency operation enabling compact magnetics, thermal shutdown protection, and TO-263-7 package suitability for high-power density PCB layouts.
Technical Context
The LM2593HVT-5.0/NOPB implements a voltage-mode controlled buck topology with an integrated 2-A N-channel DMOS switch, fixed 150-kHz oscillator, and internal compensation network. Its feedback loop references a precision 1.23-V bandgap, with the 5-V fixed version internally connecting the Feedback (Pin 6) directly to Output (Pin 2).
Functional modes include active regulation (SD/SS ≥2 V), shutdown (SD/SS ≤0.6 V, IQ ≈90 μA), and programmable soft-start via external capacitor on SD/SS (Pin 7). The Error Flag (Pin 3) provides open-collector power-good signaling with user-defined delay via capacitor on Delay (Pin 5), clamped to 1.3 V threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±4% over full line (7–60 V), load (0.2–2 A), and temperature (–40°C to +125°C) range - ensures stable rail for downstream logic or analog circuitry without external resistor divider. |
| Max Input Voltage | 60 V - supports wide-input applications including 48-V industrial buses, automotive transients, and unregulated AC/DC front-ends. |
| Switching Frequency | 150 kHz (±15%) - enables use of smaller, lower-cost inductors and capacitors versus lower-frequency alternatives (e.g., 50–100 kHz), reducing solution footprint. |
| Output Current | 2 A DC continuous - delivers sufficient power for FPGA I/O banks, microcontroller cores, or sensor signal chains without external current boosting. |
| Standby Quiescent Current | 90 μA typical at VIN = 60 V - minimizes system-level power loss during sleep or standby modes in battery-backed or energy-sensitive equipment. |
| Thermal Protection | Internal thermal shutdown - automatically disables switching if junction temperature exceeds 150°C, preventing permanent damage under overload or poor heatsinking conditions. |
| Oscillator Accuracy | ±15% over –40°C to +125°C - ensures predictable ripple frequency and EMI profile across operating temperature, critical for EMC-compliant designs. |
Pinout & Package
LM2593HVT-5.0/NOPB is housed in a thermally enhanced 7-pin TO-263 (KTW) surface-mount package (10.10 mm × 8.89 mm), featuring an exposed thermal pad for direct PCB copper connection to improve heat dissipation. Pin numbering follows standard top-view orientation with Pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Positive input supply | Accepts 7–60 V DC; requires low-ESR input capacitor (≥470 µF) placed adjacent to minimize switching noise and transient voltage drop. |
| 2 - Output | Internal switch node | Drives external diode and inductor; swings between ~VIN–1.3 V (ON) and ~–0.5 V (OFF); must be routed with short, low-inductance traces. |
| 3 - Flag | Open-collector error flag | Asserts low (≤0.3 V @ 3 mA sink) when output falls below 95% of 5 V; requires external pull-up (e.g., 4.7 kΩ to VOUT) and clamp if pulled above 45 V. |
| 4 - Ground | Circuit reference | Common return for VIN, Output, Feedback, and thermal pad; must connect to large PCB copper pour for low-impedance path and thermal conduction. |
| 5 - Delay | Power-up delay timing | Charged by 3-μA internal current source; sets Flag assertion delay after regulation; 0.1 µF yields ~43 ms delay (t = C × 1.3 V / 3 μA). |
| 6 - Feedback | Voltage sense input | Internally tied to Output for 5-V fixed version; not user-accessible - eliminates external resistor network and associated tolerance errors. |
| 7 - SD/SS | Shutdown/Soft-start control | Drives low (≤0.6 V) for shutdown (IQ ≈90 μA); floats or rises ≥2 V for operation; adding capacitor enables linear output ramp (soft-start) to limit inrush current. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2-A power switch | Eliminates need for external MOSFET and gate driver, reducing BOM count and layout complexity while maintaining 1.3-V typical saturation voltage at full load. |
| Fixed 5-V output with ±4% tolerance | Guarantees accurate regulation across full operating range - avoids calibration overhead in systems requiring precise 5-V logic or analog supply rails. |
| Programmable soft-start | Enables controlled output voltage ramp using single capacitor on SD/SS pin - prevents input inrush, output overshoot, and false triggering of downstream reset circuits. |
| Out-of-regulation error flag with delay | Provides reliable power-good status with user-configurable hold-off time - supports safe sequencing in multi-rail systems and fault logging in industrial controllers. |
| Thermal shutdown + current limiting | Two-stage protection: peak current limit (2.4–3.7 A) prevents switch destruction during short-circuit; thermal shutdown (150°C) guards against sustained overload or poor heatsinking. |
Applications
| Industrial PLC Power Supply | Automotive Body Control Module |
|---|---|
|
Use Scenario: Converting 24-V vehicle battery or 48-V industrial bus to stable 5-V rail for microcontroller, CAN transceiver, and sensor interface circuitry. IC Role / Device Role / Timing Role: Primary non-isolated buck regulator providing regulated 5-V supply with high input voltage tolerance and robust fault protection. Use Value: Delivers 2 A continuously at 60-V max input, withstands load dump transients, and maintains regulation during cold-crank (down to 6 V), ensuring system uptime in harsh environments. |
Use Scenario: Powering 5-V logic and communication peripherals in body electronics modules where space, reliability, and thermal performance are constrained. IC Role / Device Role / Timing Role: Compact, thermally efficient step-down converter replacing discrete solutions or less rugged linear regulators. Use Value: TO-263-7 package enables direct thermal pad soldering to 2.5-in² copper area (θJA = 30°C/W), supporting 2-A load without external heatsink in sealed enclosures. |
| Telecom Remote Radio Unit | Test & Measurement Equipment |
|
Use Scenario: Generating clean 5-V bias for RF amplifiers and ADCs in outdoor base station radios powered from 48-V DC plant. IC Role / Device Role / Timing Role: High-efficiency preregulator preceding low-noise LDOs, minimizing heat generation in thermally limited enclosures. Use Value: 81% efficiency at 12-V input/2-A load reduces thermal load vs. linear regulators; 150-kHz switching allows small 33-µH inductor and 220-µF output capacitor. |
Use Scenario: Providing stable 5-V supply for precision analog front-ends, digital logic, and display controllers in portable bench instruments. IC Role / Device Role / Timing Role: Main DC-DC converter with soft-start and error flag for system-level power monitoring and graceful shutdown. Use Value: Soft-start (via SD/SS capacitor) prevents output overshoot during power-on; error flag enables firmware-driven fault detection and recovery before measurement cycles begin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2593HV-5.0/NOPB | Same core architecture; TO-220-7 package (larger footprint, higher θJA = 50°C/W), no thermal pad. | Better suited for prototyping or low-volume through-hole assembly; requires external heatsink for 2-A continuous operation. | Select when manual soldering, vertical mounting, or legacy board compatibility is required. |
| LM2678-5.0/NOPB | Higher 63-V max input, 5-A output, 260-kHz switching, but larger TO-220-5 package and no error flag or delay function. | Targets higher-current applications (e.g., motor drivers, multi-rail supplies); lacks integrated power-good signaling. | Choose when >2-A load or wider input range is needed, and error flag functionality is handled externally. |
Compared with LM2593HV-5.0/NOPB, the LM2593HVT-5.0/NOPB offers superior thermal performance (30°C/W vs. 50°C/W) and surface-mount compatibility, while LM2678-5.0/NOPB trades integrated supervision features for higher current and input voltage - making LM2593HVT-5.0/NOPB optimal for space-constrained, thermally demanding 2-A applications requiring power-good signaling.
Availability
LM2593HVT-5.0/NOPB is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, telecom infrastructure, and test equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LM2593HVT-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 ICs, with decades of expertise in high-reliability power conversion solutions.
The LM2593HV family was designed for cost-sensitive, high-input-voltage industrial and automotive DC-DC applications where simplicity, thermal robustness, and integrated protection are essential - exemplified by the LM2593HVT-5.0/NOPB's TO-263 package and 2-A capability.
FAQ
What is the maximum input voltage rating for LM2593HVT-5.0/NOPB?
The absolute maximum input voltage for LM2593HVT-5.0/NOPB is 63 V, with recommended operation up to 60 V. This enables use in 48-V industrial systems and automotive applications subject to load dump transients. Exceeding 63 V risks permanent damage per Absolute Maximum Ratings. The device maintains regulation down to 7 V input for 5-V output, supporting cold-crank scenarios.
Does LM2593HVT-5.0/NOPB require external feedback resistors?
No - LM2593HVT-5.0/NOPB is the fixed 5-V output variant, with the Feedback (Pin 6) internally connected to the Output (Pin 2). No external resistor divider is needed, eliminating tolerance errors and simplifying layout. This differs from the adjustable version (LM2593HVS-ADJ), which requires two external resistors to set VOUT.
How does the error flag (Flag pin) operate on LM2593HVT-5.0/NOPB?
The Flag pin (Pin 3) is an open-collector output that pulls low (≤0.3 V, sinking up to 3 mA) when the 5-V output drops below 95% (i.e., <4.75 V), indicating out-of-regulation. It remains high (via external pull-up) when in regulation. A capacitor on the Delay pin (Pin 5) programs the time before Flag asserts high after power-up - preventing premature system enable during voltage ramp.
What thermal performance can be expected from LM2593HVT-5.0/NOPB in a typical PCB layout?
With the TO-263-7 package's thermal pad soldered to 2.5 in² of 1-oz copper on a single-sided PCB, LM2593HVT-5.0/NOPB achieves a junction-to-ambient thermal resistance (θJA) of 30°C/W. At 2-A load and 12-V input, typical power dissipation is ~1.8 W, resulting in ~54°C junction rise above ambient - well within the 125°C max operating temperature, assuming 70°C ambient.
Can LM2593HVT-5.0/NOPB be used in shutdown mode to reduce system power consumption?
Yes - driving the SD/SS pin (Pin 7) to ≤0.6 V places LM2593HVT-5.0/NOPB into shutdown mode, reducing quiescent current to 90 μA typical (max 200 μA) at 60-V input. This enables ultra-low-power standby in battery-operated or energy-harvesting systems. The output is disabled, and the Flag pin goes low, signaling loss of regulation.
LM2593HVT-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- TO-220-7 Formed Leads
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 150kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-7
LM2593HVT-5.0/NOPB FAQ
1.How can I place an order for LM2593HVT-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2593HVT-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 LM2593HVT-5.0/NOPB reliable?
The price and inventory of LM2593HVT-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 LM2593HVT-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM2593HVT-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2593HVT-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2593HVT-5.0/NOPB?
LM2593HVT-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2593HVT-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 LM2593HVT-5.0/NOPB?
For technical support, including LM2593HVT-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2593HVT-5.0/NOPB requirements.
6.How does Aetrix verify that LM2593HVT-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2593HVT-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 LM2593HVT-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM2593HVT-5.0/NOPB?
All LM2593HVT-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2593HVT-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 LM2593HVT-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM2593HVT-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2593HVT-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…
