LM25117PMH/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The LM25117PMH/NOPB is a 42V synchronous step-down PWM controller in a 20-pin HTTSOP package, supporting up to 20A output current with current-mode control and 230kHz switching frequency. It features programmable output from 0.8V and operates from 4.5V to 42V input, making it ideal for high-current industrial and telecom point-of-load converters.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- LM25117PMH/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2030(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
- Wide 4.5V to 42V input voltage range covering industrial bus standards
- Current-mode PWM control for excellent line and load transient response
- Programmable output voltage from 0.8V for flexible power rail design
- Support for up to 20A output current for high-power applications
- 230kHz switching frequency enabling compact passive component selection
- 20-pin HTTSOP package with exposed thermal pad for efficient heat dissipation
Applications
The LM25117PMH/NOPB is optimized for high-current point-of-load power converters in industrial automation, telecom infrastructure, and server power systems where wide input range and precise output voltage are required. It is commonly used in 12V-to-core voltage converters for FPGAs and processors, 24V bus power conversion in factory automation, and distributed power architectures requiring scalable current output.
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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM25117PMH/NOPB:
Switching Controller, Current-mode, 20A, 750kHz Switching Freq-Max, PDSO20
Switching Controller, Current-mode, 20A, 750kHz Switching Freq-Max, PDSO20
Frequently Asked Questions
What is the input voltage range of the LM25117PMH/NOPB?
The LM25117PMH/NOPB accepts input voltages from 4.5V to 42V with a nominal 24V design center, covering standard 12V and 24V industrial bus voltages as well as telecom 48V bus applications with appropriate pre-regulation stages.
What is the switching frequency and output current capability of the LM25117PMH/NOPB?
The LM25117PMH/NOPB operates at 230kHz switching frequency and supports up to 20A output current, enabling a good balance between efficiency and passive component size. The high current capability makes it suitable for powering processors, FPGAs, memory banks, and other high-current digital loads.
What control scheme does the LM25117PMH/NOPB use?
The LM25117PMH/NOPB uses peak current-mode pulse width modulation (PWM) control, which provides inherent cycle-by-cycle overcurrent limiting and fast transient response to load steps. Current-mode control also simplifies loop compensation compared to voltage-mode topologies.
What is the minimum programmable output voltage of the LM25117PMH/NOPB?
The LM25117PMH/NOPB can be programmed to produce output voltages as low as 0.8V, which covers core voltage requirements for modern FPGA and processor devices. The output is set by an external resistor divider, enabling full design flexibility for any target output within the device's specified range.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.4000 | $4.40 |
| 5+ | $3.9400 | $19.70 |
| 10+ | $3.7600 | $37.60 |
| 84+ | $2.3821 | $200.10 |
| 110+ | $2.2926 | $252.19 |
| 137+ | $2.2030 | $301.81 |
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