LMS3655MQURNLRQ1
Active5.5-A, 36-V SYNCHRONOUS, 400-KHZ, STEP-DOWN CONVERTER
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LMS3655MQURNLRQ1
Active5.5-A, 36-V SYNCHRONOUS, 400-KHZ, STEP-DOWN CONVERTER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LMS3655MQURNLRQ1 |
|---|---|
| Current - Output | 5.5 A |
| Frequency - Switching | 400 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 | 22-PowerVFQFN |
| Qualification | AEC-Q100 |
| Supplier Device Package | 22-VQFN-HR |
| Supplier Device Package [x] | 5 |
| Supplier Device Package [y] | 4 |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 36 V |
| Voltage - Input (Min) [Min] | 3.9 V |
| Voltage - Output (Max) [Max] | 20 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 | Cut Tape (CT) | 1 | $ 6.55 | |
| 10 | $ 5.92 | |||
| 25 | $ 5.64 | |||
| 100 | $ 4.90 | |||
| 250 | $ 4.68 | |||
| 500 | $ 4.27 | |||
| 1000 | $ 3.72 | |||
| Digi-Reel® | 1 | $ 6.55 | ||
| 10 | $ 5.92 | |||
| 25 | $ 5.64 | |||
| 100 | $ 4.90 | |||
| 250 | $ 4.68 | |||
| 500 | $ 4.27 | |||
| 1000 | $ 3.72 | |||
| Tape & Reel (TR) | 3000 | $ 3.58 | ||
| Texas Instruments | LARGE T&R | 1 | $ 5.02 | |
| 100 | $ 4.09 | |||
| 250 | $ 3.21 | |||
| 1000 | $ 2.73 | |||
Description
General part information
LMS3655-Q1 Series
The LMS3635-Q1 and LMS3655-Q1 synchronous buck regulators are optimized for high performance applications, providing an output voltage of 3.3 V, 5 V, or an adjustable output of 1 V to 20 V. Seamless transition between PWM and PFM modes, along with a low quiescent current, ensures high efficiency and superior transient responses at all loads.
Advanced high-speed circuitry allows the LMS3655-Q1 to regulate an input of 24 V to an output of 3.3 V at a fixed frequency of 400 kHz while also enabling a continuous load current of 5.5 A. An innovative frequency foldback architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.5 V. The input voltage can range up to 36 V, with transient tolerance up to 42 V, easing input surge protection design.
An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space.
Documents
Technical documentation and resources
