LM25122QPWPRQ1
Active3-42-V WIDE VIN, SYNCHRONOUS BOOST CONTROLLER WITH MULTIPHASE CAPABILITY, AEC-Q100 QUALIFIED
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LM25122QPWPRQ1
Active3-42-V WIDE VIN, SYNCHRONOUS BOOST CONTROLLER WITH MULTIPHASE CAPABILITY, AEC-Q100 QUALIFIED
Technical Specifications
Parameters and characteristics for this part
| Specification | LM25122QPWPRQ1 |
|---|---|
| Clock Sync | True |
| Control Features | Frequency Control, Enable, Soft Start |
| Frequency - Switching | 450 kHz |
| Function | Step-Up, Step-Up/Step-Down |
| Grade | Automotive |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 20-PowerTSSOP |
| Package / Case | 0.173 in |
| Package / Case [custom] | 4.4 mm |
| Qualification | AEC-Q100 |
| Supplier Device Package | 20-HTSSOP |
| Synchronous Rectifier | True |
| Topology | Flyback, SEPIC, Boost |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 4.53 | |
| 10 | $ 4.07 | |||
| 25 | $ 3.85 | |||
| 100 | $ 3.34 | |||
| 250 | $ 3.17 | |||
| 500 | $ 2.84 | |||
| 1000 | $ 2.40 | |||
| Digi-Reel® | 1 | $ 4.53 | ||
| 10 | $ 4.07 | |||
| 25 | $ 3.85 | |||
| 100 | $ 3.34 | |||
| 250 | $ 3.17 | |||
| 500 | $ 2.84 | |||
| 1000 | $ 2.40 | |||
| Tape & Reel (TR) | 2500 | $ 2.28 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.42 | |
| 100 | $ 3.00 | |||
| 250 | $ 2.10 | |||
| 1000 | $ 1.69 | |||
Description
General part information
LM25122-Q1 Series
The LM25122 is a multiphase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The control method is based upon peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation.
The switching frequency is programmable up to 600 kHz. Higher efficiency is achieved by two robust N-channel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode emulation mode also enables discontinuous mode operation for improved efficiency at light load conditions.
An internal charge pump allows 100% duty cycle for high-side synchronous switch (Bypass operation). A 180º phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.
Documents
Technical documentation and resources