LM21212MH-2/NOPB Texas Instruments Integrated Circuit (Other) In Stock
The LM21212MH-2/NOPB is a voltage-mode synchronous buck regulator from Texas Instruments delivering up to 12 A from a 2.95 V to 5.5 V input. It uses PWM control with adjustable switching frequency and is housed in a 20-pin SOIC package, suited for high-current point-of-load power conversion.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- LM21212MH-2/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.0300(MOQ 292)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High 12 A continuous output current capability in a compact 20-pin package for dense power designs
- Wide 2.95 V to 5.5 V input voltage range covers standard 3.3 V and 5 V power distribution rails
- Adjustable switching frequency via external resistor allows optimization of efficiency vs. component size
- Voltage-mode PWM control with internal compensation simplifies loop design and reduces external component count
- Synchronous rectification minimizes conduction losses and improves efficiency at heavy loads above 6 A
Applications
The LM21212MH-2/NOPB is designed for point-of-load (POL) power conversion in servers, FPGA boards, and network switches requiring 12 A from a 5 V bus. It is well suited for powering high-current digital processors, memory arrays, and DSP cores where tight output voltage regulation and fast transient response are critical. The adjustable switching frequency also makes it compatible with noise-sensitive communication equipment where frequency spreading or synchronization is needed.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.95V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 12A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1500kHz |
| Technology | MOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current LM21212MH-2/NOPB can supply and for which load types?
The LM21212MH-2/NOPB provides up to 12 A of continuous output current, making it suitable for high-current digital loads such as FPGAs, multi-core processors, and DDR memory rails. The synchronous buck topology ensures low dropout losses even at full 12 A load, maintaining high efficiency across a 2.95 V to 5.5 V input range.
How does the adjustable switching frequency of LM21212MH-2/NOPB benefit system-level design?
By setting an external resistor, designers can tune the PWM switching frequency to balance inductor and capacitor sizes against switching losses, optimizing efficiency for a given application. This flexibility also allows the LM21212MH-2/NOPB to be synchronized away from sensitive frequency bands in RF or precision analog systems operating alongside the 5 V power bus.
Which input voltage rails is LM21212MH-2/NOPB compatible with in a typical server or networking system?
The device accepts input voltages from 2.95 V to 5.5 V with a nominal 5 V rail, covering the standard 3.3 V and 5 V distribution buses common in servers, routers, and network switches. This range makes it directly compatible with industry-standard intermediate bus architectures where a centralized 5 V or 3.3 V rail feeds multiple point-of-load regulators.
What control topology does LM21212MH-2/NOPB use and how does it simplify the power supply design?
LM21212MH-2/NOPB uses voltage-mode PWM control with internal loop compensation, which reduces the number of external passive components needed compared to current-mode designs that require a sense resistor and additional compensation network. This simplification shortens design time and shrinks BOM cost, particularly important for 12 A point-of-load converters deployed in large-volume server and communications hardware.
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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 |
|---|---|---|
| 292+ | $5.2900 | $1544.68 |
| 511+ | $5.1800 | $2646.98 |
| 1022+ | $5.0300 | $5140.66 |
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