LM5122MH/NOPBIn StockTexas Instruments
LM5122MH/NOPB is a current-mode PWM boost controller from Texas Instruments, supporting 3V–65V input, up to 100V output, in a 20-pin SOIC package. From $1.42 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- LM5122MH/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.4214(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control with pulse-by-pulse current limiting for robust overcurrent protection
- Wide input voltage range of 3V to 65V, output voltage up to 100V for versatile boost designs
- 20-pin Small Outline (SOIC) package with seated height optimization for compact board layouts
- Supports adjustable switching frequency via external resistor for noise-sensitive applications
- Pb-free (RoHS compliant) packaging with 15-year estimated time of obsolescence (YTEOL)
Applications
The LM5122MH/NOPB is widely used in industrial power supplies, telecom equipment, and automotive pre-boost stages requiring high output voltages up to 100V. It is also suitable for LED driver circuits, battery-powered systems needing voltage step-up, and point-of-load regulators in harsh environments. Its wide input range and robust current-mode control make it ideal for designs demanding tight regulation and high reliability.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | SEATED HGT-NOM, AVAILABLE OUTPUT VOLTAGE IS UP TO 100V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 65V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 20A |
| Output Voltage-Max | 100V |
| Output Voltage-Min | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 8mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LM5122MH/NOPB Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM5122MH/NOPB:
Switching Controller, Current-mode, 20A, 1000kHz Switching Freq-Max, PDSO20
suggested
suggested
Frequently Asked Questions
What is the input and output voltage range of the LM5122MH/NOPB?
The LM5122MH/NOPB supports an input voltage range of 3V to 65V (nominal 12V), and the available output voltage can reach up to 100V, making it suitable for high-voltage boost converter designs in industrial and telecom applications.
What control mode and technique does the LM5122MH/NOPB use?
The LM5122MH/NOPB uses current-mode control combined with pulse width modulation (PWM). This technique provides fast transient response, inherent cycle-by-cycle current limiting, and simplified loop compensation, which improves system stability across varying load conditions.
What package does the LM5122MH/NOPB come in and is it RoHS compliant?
The LM5122MH/NOPB is packaged in a 20-pin Small Outline Integrated Circuit (SOIC) package optimized for seated height. It is fully Pb-free and RoHS compliant (Pbfree Code: Yes), with an estimated time of obsolescence (YTEOL) of 15 years.
What are typical applications for the LM5122MH/NOPB?
Typical applications include industrial boost power supplies, automotive pre-regulators, LED drivers requiring voltages above 60V, telecom infrastructure power modules, and battery-powered devices that need efficient step-up conversion from a wide input voltage range.
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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.
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