LM25117PMHE/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LM25117PMHE/NOPB is a wide input voltage current-mode synchronous buck controller from Texas Instruments supporting 4.5V to 42V input for high-efficiency step-down power conversion. It features programmable output voltage from 0.8V, output tracking, and PWM current-mode control in a 20-pin SOIC package. Ideal for industrial, telecom, and server power supplies requiring precise, regulated low-voltage rails.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- LM25117PMHE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1600(MOQ 45)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide input voltage range 4.5V to 42V for industrial and telecom power supplies
- Current-mode PWM control for fast transient response and inherent current limiting
- Synchronous buck topology with integrated gate drivers for high efficiency
- Programmable output voltage from 0.8V for flexible power rail design
- Output tracking capability for sequenced multi-rail power systems
- 20-pin SOIC package balances integration and thermal dissipation
Applications
The LM25117PMHE/NOPB is widely used in industrial power supplies, server power management modules, and telecom equipment requiring efficient DC-DC step-down conversion from 12V, 24V, or 48V bus inputs. Its current-mode control and output tracking features make it suitable for multi-rail power sequencing in FPGAs, DSPs, and complex SoC-based designs. The device also serves point-of-load converter designs in test and measurement equipment where precise, low-noise power rails are critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | SEATED HGT-NOM, PROGRAMMABLE OUTPUT FROM 0.8V |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 24V |
| 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 | 41V |
| Output Voltage-Min | 0.8V |
| 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 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 750kHz |
| 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 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Taiwan |
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 LM25117PMHE/NOPB?
The LM25117PMHE/NOPB accepts input voltages from 4.5V to 42V, with a nominal operating point of 24V. This wide range supports designs powered from unregulated 12V, 24V, or 48V bus rails commonly found in industrial, server, and telecommunications power systems.
What control mode does the LM25117PMHE/NOPB use?
The LM25117PMHE/NOPB uses current-mode pulse width modulation (PWM) control, which provides excellent line and load transient response. Current-mode control also simplifies compensation design and provides inherent cycle-by-cycle current limiting for improved fault protection in synchronous buck converter designs.
Does the LM25117PMHE/NOPB support output voltage tracking?
Yes, the LM25117PMHE/NOPB includes an output tracking feature that allows the output voltage to follow a reference or another supply rail during power-up and power-down sequencing. This is particularly useful in FPGA and multi-processor systems where specific power sequencing is required to prevent latch-up or damage to core logic.
What package is the LM25117PMHE/NOPB available in?
The LM25117PMHE/NOPB is housed in a 20-pin SOIC (Small Outline Integrated Circuit) package, which provides adequate pin count for all control and gate driver connections while maintaining a compact, standard surface-mount footprint. The SOIC-20 is compatible with standard PCB assembly and reflow soldering processes.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 45+ | $4.4965 | $202.34 |
| 58+ | $4.3466 | $252.10 |
| 77+ | $3.8969 | $300.06 |
| 500+ | $3.2900 | $1645.00 |
| 1000+ | $3.1900 | $3190.00 |
| 2500+ | $3.1600 | $7900.00 |
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