LM62440APPQRJRRQ1
ActiveAUTOMOTIVE 3-V TO 36-V, 4-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER
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LM62440APPQRJRRQ1
ActiveAUTOMOTIVE 3-V TO 36-V, 4-A, LOW-NOISE SYNCHRONOUS STEP-DOWN CONVERTER
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | LM62440APPQRJRRQ1 | LM62440-Q1 Series |
|---|---|---|
| Current - Output | 4 A | 4 A |
| Frequency - Switching | - | 400 kHz |
| Frequency - Switching [Max] | 2.2 MHz | 2.2 MHz |
| Frequency - Switching [Min] | 200 kHz | 200 kHz |
| Function | Step-Down | Step-Down |
| Grade | Automotive | Automotive |
| Mounting Type | Surface Mount, Wettable Flank | Surface Mount, Wettable Flank |
| Number of Outputs | 1 | 1 |
| Operating Temperature [Max] | 150 C | 150 C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Output Type | - | 27.03 °C/W |
| Package / Case | 14-PowerVFQFN | 14-PowerVFQFN |
| Qualification | AEC-Q100 | AEC-Q100 |
| Supplier Device Package | 14-VQFN-HR | 14-VQFN-HR |
| Supplier Device Package [x] | 4 | 4 |
| Supplier Device Package [y] | 3.5 | 3.5 |
| Synchronous Rectifier | True | True |
| Topology | Buck | Buck |
| Voltage - Input (Max) [Max] | 36 V | 36 V |
| Voltage - Input (Min) [Min] | 3 V | 3 V |
| Voltage - Output (Max) [Max] | 34.2 V | 34.2 V |
| Voltage - Output (Min/Fixed) | - | 3.3 V |
| Voltage - Output (Min/Fixed) [Min] | 1 V | 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 | Cut Tape (CT) | 1 | $ 4.25 | |
| 10 | $ 3.82 | |||
| 25 | $ 3.61 | |||
| 100 | $ 3.13 | |||
| 250 | $ 2.97 | |||
| 500 | $ 2.66 | |||
| 1000 | $ 2.25 | |||
| Digi-Reel® | 1 | $ 4.25 | ||
| 10 | $ 3.82 | |||
| 25 | $ 3.61 | |||
| 100 | $ 3.13 | |||
| 250 | $ 2.97 | |||
| 500 | $ 2.66 | |||
| 1000 | $ 2.25 | |||
| Tape & Reel (TR) | 3000 | $ 2.13 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.21 | |
| 100 | $ 2.81 | |||
| 250 | $ 1.97 | |||
| 1000 | $ 1.59 | |||
LM62440-Q1 Series
Automotive 3-V to 36-V, 4-A, low-noise synchronous step-down converter
| Part | Voltage - Input (Max) [Max] | Voltage - Output (Max) [Max] | Package / Case | Voltage - Input (Min) [Min] | Grade | Current - Output | Topology | Voltage - Output (Min/Fixed) [Min] | Output Configuration | Frequency - Switching [Max] | Frequency - Switching [Min] | Qualification | Supplier Device Package [y] | Supplier Device Package [x] | Supplier Device Package | Mounting Type | Synchronous Rectifier | Output Type | Operating Temperature [Max] | Operating Temperature [Min] | Function | Number of Outputs | Frequency - Switching | Output Type | Voltage - Output (Min/Fixed) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM62440BPPQRJRRQ1 | 36 V | 34.2 V | 14-PowerVFQFN | 3 V | Automotive | 4 A | Buck | 1 V | Positive | 2.2 MHz | 200 kHz | AEC-Q100 | 3.5 | 4 | 14-VQFN-HR | Surface Mount, Wettable Flank | Adjustable | 150 C | -40 °C | Step-Down | 1 | ||||
Texas Instruments LM62440APPQRJRRQ1 | 36 V | 34.2 V | 14-PowerVFQFN | 3 V | Automotive | 4 A | Buck | 1 V | Positive | 2.2 MHz | 200 kHz | AEC-Q100 | 3.5 | 4 | 14-VQFN-HR | Surface Mount, Wettable Flank | Adjustable | 150 C | -40 °C | Step-Down | 1 | ||||
Texas Instruments LM62440BLPQRJRRQ1 | 36 V | 14-PowerVFQFN | 3 V | Automotive | 4 A | Buck | Positive | AEC-Q100 | 3.5 | 4 | 14-VQFN-HR | Surface Mount, Wettable Flank | 150 C | -40 °C | Step-Down | 1 | 400 kHz | 27.03 °C/W | 3.3 V | ||||||
Texas Instruments LM62440CPPQRJRRQ1 | 36 V | 34.2 V | 14-PowerVFQFN | 3 V | Automotive | 4 A | Buck | 1 V | Positive | 2.2 MHz | 200 kHz | AEC-Q100 | 3.5 | 4 | 14-VQFN-HR | Surface Mount, Wettable Flank | Adjustable | 150 C | -40 °C | Step-Down | 1 |
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