LM62440CPPQRJRRQ1
ActiveAUTOMOTIVE 3-V TO 36-V, 4-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER
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LM62440CPPQRJRRQ1
ActiveAUTOMOTIVE 3-V TO 36-V, 4-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LM62440CPPQRJRRQ1 |
|---|---|
| Current - Output | 4 A |
| Frequency - Switching [Max] | 2.2 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Grade | Automotive |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | 14-PowerVFQFN |
| Qualification | AEC-Q100 |
| Supplier Device Package | 14-VQFN-HR (4x3.5) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 3 V |
| Voltage - Output (Max) [Max] | 34.2 V |
| Voltage - Output (Min/Fixed) | 1 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 3000 | $ 2.13 | |
| Texas Instruments | LARGE T&R | 1 | $ 3.21 | |
| 100 | $ 2.81 | |||
| 250 | $ 1.97 | |||
| 1000 | $ 1.59 | |||
Description
General part information
LM62440-Q1 Series
The LM62440-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 4 A of output current is delivered over a wide input range of 3.0 V to 36 V; 42-V tolerance supports load dump for durations of 400 ms. The LM62440-Q1 implements soft recovery from dropout, eliminating overshoot on the output.
The LM62440-Q1 is specifically designed for minimal EMI. The device incorporates pseudorandom spread spectrum, adjustable SW node rise time, a low-EMI VQFN-HR package featuring low switch node ringing, and an optimized pinout for ease of use. The switching frequency can be synchronized between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands. In addition, either 2.1-MHz or 400-kHz frequency factory options can be selected for improved efficiency at low operating frequency or smaller solution size at high operating frequency.
Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7 µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, provides exceptional efficiency across the entire load range.
Documents
Technical documentation and resources