LM3152MH-3.3/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM3152MH-3.3/NOPB is a synchronous step-down switching controller with fixed 3.3 V output, 6 V to 33 V input range, and 500 kHz constant on-time switching frequency in a 14-pin SOIC package. It uses voltage-mode control for stable operation across wide load range. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- LM3152MH-3.3/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Constant on-time voltage-mode control delivering fast transient response without external compensation network at 500 kHz switching frequency
- Fixed 3.3 V output with 6 V to 33 V input range covering 12 V, 24 V, and 28 V industrial input rails
- Synchronous rectification control gate drive for both high-side and low-side MOSFETs improving efficiency above 90% at full load
Applications
The LM3152MH-3.3/NOPB is designed for point-of-load DC-DC conversion in industrial computing, telecom, and networking equipment where a 12 V or 24 V bus must be regulated to 3.3 V for FPGAs, DSPs, and microprocessors. Its 500 kHz switching frequency and constant on-time architecture minimize output filter size while providing fast load-step response without external loop compensation components.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | SEATED HGT-NOM |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | CONSTANT ON TIME |
| Input Voltage-Max | 33V |
| Input Voltage-Min | 6V |
| Input Voltage-Nom | 18V |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 12A |
| Output Voltage-Max | 3.3V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 500kHz |
| 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 |
| 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 LM3152MH-3.3/NOPB:
Frequently Asked Questions
What input voltage range does LM3152MH-3.3/NOPB accept and which bus voltages does that cover?
The LM3152MH-3.3/NOPB accepts input voltages from 6 V to 33 V, covering standard 12 V ATX and telecom supplies, 24 V industrial rails, and 28 V aerospace bus voltages. This wide range allows a single converter design to serve multiple end-product variants without redesigning the power stage.
How does constant on-time control in LM3152MH-3.3/NOPB improve transient response compared to voltage-mode PWM?
Constant on-time control responds to an output voltage drop within one switching cycle (~2 µs at 500 kHz) by immediately extending the on-time, unlike fixed-frequency PWM that must wait for the next clock edge. This reduces the peak voltage deviation during a 5 A load step by approximately 30-50% compared to standard PWM, enabling smaller output capacitors.
What switching frequency does LM3152MH-3.3/NOPB use and how does it affect passive component sizing?
The LM3152MH-3.3/NOPB switches at 500 kHz, which allows the output inductor to be sized below 10 µH and the output capacitor below 100 µF for a 3 A load, compared to a 100 kHz design requiring 47 µH and 470 µF. This reduces inductor footprint by roughly 60% and enables all-ceramic output capacitor designs.
When should a designer choose LM3152MH-3.3/NOPB over an integrated DC-DC converter module for a 3.3 V rail?
When output current exceeds 3 A or when custom switching frequency, external MOSFET selection, or thermal management via board copper is needed, the LM3152MH-3.3/NOPB controller paired with external MOSFETs and a 14-pin SOIC footprint provides greater design flexibility than a fixed integrated module at significantly lower IC cost.
Related Guides
How to Choose a Digital Potentiometer: AD5204, AD5206, and AD8403 Selection Guide
Compare the AD5204, AD5206, and AD8403 multi-channel SPI digipots by channel count, resistance value, and package to choose the right Analog Devices digital potentiometer for your design.
Jun 21, 2026
AD7745 / AD7746 / AD7747 Capacitance-to-Digital Converter Design Guide
Complete application note for the AD774x CDC family: circuit design, shielding, conversion rate selection, and sourcing guidance for the AD7745, AD7746, and AD7747.
Jun 21, 2026
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 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.
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.”