LM2598S-3.3/NOPBIn StockTexas Instruments
LM2598S-3.3/NOPB is a SIMPLE SWITCHER step-down voltage regulator with 4.5V–40V input, 3.3V fixed output, and 1A load current. Features PWM control, voltage-mode regulation, and high efficiency. From $2.20, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2598S-3.3/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2000(MOQ 500)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output with tight voltage regulation accuracy
- Wide 4.5V to 40V input voltage range for versatile power supply designs
- 1A output current capability with SIMPLE SWITCHER PWM control
- TO-263 (D2PAK) surface-mount package for easy PCB integration
- RoHS compliant (Pb-free, JESD-609 e3) for modern electronics
Applications
The LM2598S-3.3/NOPB is widely used in embedded systems, microcontroller boards, and IoT devices requiring a stable 3.3V supply from higher-voltage rails such as 5V, 12V, or 24V. Its high efficiency and minimal external component count make it ideal for industrial power supplies, automotive electronics, and consumer appliances. The surface-mount D2PAK package suits compact PCB designs where thermal performance and space savings are priorities.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 173kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM2598S-3.3/NOPB?
The LM2598S-3.3/NOPB accepts an input voltage from 4.5V to 40V, making it suitable for a wide range of power sources including 5V, 12V, 24V, and automotive 12V/24V rails. This flexibility allows designers to use it across many different power supply applications.
What output voltage and current does the LM2598S-3.3/NOPB provide?
The LM2598S-3.3/NOPB provides a fixed 3.3V regulated output at up to 1A load current. It uses pulse-width modulation (PWM) in voltage-mode control to maintain tight output regulation, making it ideal for powering microcontrollers, FPGAs, and other 3.3V digital logic.
What package does the LM2598S-3.3/NOPB come in?
The LM2598S-3.3/NOPB is available in a TO-263 (D2PAK) surface-mount package with 7 leads (JESD-30 code R-PSSO-G7). This package offers excellent thermal dissipation and is well-suited for high-density PCB designs. It is RoHS compliant and Pb-free per JESD-609 e3 specification.
What are typical applications for the LM2598S-3.3/NOPB?
Typical applications include step-down DC-DC conversion in embedded systems, industrial control boards, automotive electronics, telecommunications equipment, and consumer devices. The fixed 3.3V output is especially useful for powering ARM microcontrollers, Raspberry Pi-compatible modules, Wi-Fi/Bluetooth SoCs, and other 3.3V peripherals.
Related Guides
Ultra Low Power Microcontroller Comparison 2026: STM32L4 vs MSP430 vs MSP432 vs CC2640
Engineer-grade 2026 comparison of ultra-low-power MCUs — STM32L476, MSP430A139, MSP432P401R, CC2640F128 across standby current, active current, and battery life.
May 5, 2026
BOM Cost Reduction: 7 Strategies for Electronics Manufacturers in 2026
Practical 2026 BOM optimization playbook — 7 proven strategies, ranked by payback time and risk. With realistic per-unit savings and verification steps.
May 5, 2026
STM32F072C8T6 Pin-Compatible Alternatives 2026: Cheaper Drop-In Options Compared
Engineer-grade compatibility analysis for STM32F072C8T6 alternatives in 2026 — pin compatibility, firmware portability, cost and lead time for each option.
May 5, 2026
Top Microcontrollers for IoT 2026: ESP32 vs Arduino vs STM32 vs RPi Pico
The five IoT MCU platforms compared on 2026 pricing, lead time, and use case — ESP32-S3, Arduino, STM32F0, RP2040, TI CC2640/CC1352P.
May 5, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.4800 | $1240.00 |
| 1000+ | $2.3400 | $2340.00 |
| 10000+ | $2.2000 | $22000.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”