LM2642MTCX/NOPB
Active4.5-V TO 30-V, TWO-PHASE PEAK CURRENT MODE SYNCHRONOUS BUCK CONTROLLER
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LM2642MTCX/NOPB
Active4.5-V TO 30-V, TWO-PHASE PEAK CURRENT MODE SYNCHRONOUS BUCK CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2642MTCX/NOPB |
|---|---|
| Applications | Embedded systems, Console/Set-Top boxes |
| Current - Supply | 1 mA |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 28-TSSOP |
| Package / Case | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 28-TSSOP |
| Voltage - Supply [Max] | 30 VDC |
| Voltage - Supply [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 152 | $ 1.99 | |
| Cut Tape (CT) | 1 | $ 3.68 | ||
| 10 | $ 3.31 | |||
| 25 | $ 3.12 | |||
| 100 | $ 2.71 | |||
| 250 | $ 2.57 | |||
| 500 | $ 2.31 | |||
| 1000 | $ 1.94 | |||
| Digi-Reel® | 1 | $ 3.68 | ||
| 10 | $ 3.31 | |||
| 25 | $ 3.12 | |||
| 100 | $ 2.71 | |||
| 250 | $ 2.57 | |||
| 500 | $ 2.31 | |||
| 1000 | $ 1.94 | |||
| Tape & Reel (TR) | 2500 | $ 1.85 | ||
| 5000 | $ 1.78 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.78 | |
| 100 | $ 2.43 | |||
| 250 | $ 1.71 | |||
| 1000 | $ 1.38 | |||
Description
General part information
LM2642 Series
The LM2642 consists of two current mode synchronous buck regulator controllers with a switching frequency of 300kHz.
The two switching regulator controllers operate 180° out of phase. This feature reduces the input ripple RMS current, thereby significantly reducing the required input capacitance. The two switching regulator outputs can also be paralleled to operate as a dual-phase single output regulator.
The output of each channel can be independently adjusted from 1.3 to VIN• maximum duty cycle. An internal 5V rail is also available externally for driving bootstrap circuitry.
Documents
Technical documentation and resources
