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LM25116MH
6-42V Wide Vin, Current Mode Synchronous Buck Controller 20-HTSSOP -40 to 125LM25116MH
6-42V Wide Vin, Current Mode Synchronous Buck Controller 20-HTSSOP -40 to 125
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Manufacturer Part # : LM25116MH
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Package/Case: HTSSOP-20
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Brand: Texas Instruments
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Product Categories : DC DC Switching Controllers
Quality Assurance
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Service & Packaging
Service & Packaging
About After Sales Service
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Initiate the application within 90 days from the shipment date.
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LM25116MH DataSheet
Pricing (USD)
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1 | $11.322 | $11.32 |
| 200 | $4.383 | $876.60 |
| 500 | $4.228 | $2,114.00 |
| 1000 | $4.152 | $4,152.00 |
These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.
Details
Ideal for step-down regulator applications from a high voltage or widely varying input supply, the LM25116MH is a synchronous buck controller that employs current mode control using an emulated current ramp. This method offers various advantages including inherent line feedforward, cycle-by-cycle current limiting, and ease of loop compensation. These features make the LM25116MH reliable for controlling very small duty cycles necessary in high input voltage applications. The device has a programmable operating frequency from 50 kHz to 1 MHz and drives external high-side and low-side NMOS power switches with adaptive dead-time control. It also includes a user-selectable diode emulation mode for discontinuous mode operation, a low quiescent current shutdown, high voltage bias regulator, automatic switch-over to external bias, thermal shutdown, frequency synchronization, cycle-by-cycle current limit, and adjustable line undervoltage lockout. With a power enhanced 20-pin HTSSOP package featuring an exposed die attach pad, the LM25116MH facilitates efficient thermal dissipation
Key Features
- Precision Control and Flexibility
- Wide Operating Temperature Range
- Small Size and Low Profile
Application
- Energy-efficient solutions
- Battery charging devices
- Portable power delivery
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | Yes | Rohs Code | No |
| Part Life Cycle Code | Not Recommended | Part Package Code | TSSOP |
| Pin Count ! | 20 | Reach Compliance Code | not_compliant |
| ECCN Code | EAR99 | HTS Code ! | 8542.39.00.01 |
| Analog IC - Other Type | SWITCHING CONTROLLER | Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION | Input Voltage-Max | 42 V |
| Input Voltage-Min | 6 V | Input Voltage-Nom | 24 V |
| JESD-30 Code | R-PDSO-G20 | JESD-609 Code | e0 |
| Length | 6.5 mm | Moisture Sensitivity Level | 1 |
| Number of Functions | 1 | Number of Outputs | 1 |
| Number of Terminals | 20 | Operating Temperature-Max | 125 °C |
| Operating Temperature-Min | -40 °C | Output Current-Max | 20 A |
| Output Voltage-Max | 36 V | Output Voltage-Min | 1.215 V |
| Package Body Material | PLASTIC/EPOXY | Package Code | HTSSOP |
| Package Shape | RECTANGULAR | Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 | Qualification Status ! | Not Qualified |
| Seated Height-Max | 1.1 mm | Surface Mount ! | YES |
| Switcher Configuration | PUSH-PULL | Switching Frequency-Max | 1000 kHz |
| Temperature Grade ! | AUTOMOTIVE | Terminal Finish | TIN LEAD |
| Terminal Form ! | GULL WING | Terminal Pitch ! | 0.65 mm |
| Terminal Position | DUAL | Width | 4.4 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM25116MH?
The LM25116MH is a high-voltage, wide-input synchronous step-down DC-DC converter designed by Texas Instruments. It is suitable for various industrial and automotive applications requiring efficient power conversion with high input voltage capability.
How Does LM25116MH Work?
The LM25116MH operates by efficiently converting a higher input voltage to a lower output voltage with synchronous rectification. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage and provide high efficiency power conversion. The converter also features integrated power MOSFETs for reduced component count and compact design.
How Many Pins does LM25116MH have and What are the Functions of the Pinout Configuration?
The LM25116MH is housed in a 16-lead VQFN (Very Thin Quad Flat No-Lead) package. The pinout configuration includes:
- VIN: Input voltage pin.
- SW: Switching node for the power MOSFETs.
- FB: Feedback pin for output voltage regulation.
- COMP: Compensation pin for loop stability.
- SS/TR: Soft-start/tracking pin.
- PGND, GND: Power and signal ground pins, respectively.
- PWM, PGOOD: Pulse-width modulation and power-good pins.
- VOUT: Output voltage pin.
What are the Pros and Cons of LM25116MH?
Pros:
- High Voltage Operation: Capable of handling high input voltages for versatile applications.
- Efficiency: Provides high efficiency power conversion with synchronous rectification.
- Integrated MOSFETs: Features integrated power MOSFETs for simplified design and reduced external components.
- Compact Package: Housed in a space-saving VQFN package suitable for compact board layouts.
Cons:
- Complexity: Requires careful design considerations for high voltage applications.
- Thermal Management: High voltage operation may require attention to thermal dissipation for reliable operation.
- External Components: May need additional external components for specific performance optimization.
Are There Any Equivalents/Alternatives to LM25116MH for Recommendation?
- The LM25117 from Texas Instruments is a similar high-voltage synchronous step-down converter.
- Alternatives to the LM25116MH include the LT8631 from Analog Devices and the TPS51362 from Texas Instruments.
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