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National Semiconductor LM3671 2MHz 600mA Step-Down DC-DC Converter in SOT23-5 Handbook
The LM3671 is a 2 MHz fixed‑frequency step‑down DC‑DC converter optimized for low‑noise PWM and low‑current PFM operation. It delivers up to 600 mA from an input range of 2.8 V to 5.5 V, features internal synchronous rectification, and requires only three external surface‑mount components (one inductor and two ceramic capacitors).\n\nThe document includes typical application circuits, pin descriptions, ordering information, absolute maximum and electrical ratings, performance graphs, and board‑layout recommendations. It also contains regulatory notices such as life‑support policy and banned‑substance compliance, plus contact details for National Semiconductor support centers worldwide.
Read onlineNational Semiconductor LM3671 specifications
| Input Voltage Range | 2.8 V to 5.5 V |
|---|---|
| Maximum Load Current | 600 mA |
| Switching Frequency | 2 MHz (typ) |
| Package | SOT23‑5 |
| Operating Temperature Range | -25 °C to +125 °C |
Source: National Semiconductor LM3671 2MHz 600mA Step-Down DC-DC Converter in SOT23-5 Handbook
All National Semiconductor LM3671 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the recommended input voltage range for the LM3671?
The LM3671 operates with an input voltage from 2.8 V to 5.5 V.
From: National Semiconductor LM3671 2MHz 600mA Step-Down DC-DC Converter in SOT23-5 Handbook
Which package does the LM3671 use?
The device is supplied in a SOT23‑5 package.
From: National Semiconductor LM3671 2MHz 600mA Step-Down DC-DC Converter in SOT23-5 Handbook
What is the typical quiescent current of the LM3671?
The LM3671 has a typical quiescent current of 16 pA.
From: National Semiconductor LM3671 Step-Down DC-DC Converter Datasheet
What input voltage range does the LM3671 support?
It operates with an input voltage from 2.7 V to 5.5 V.
From: National Semiconductor LM3671 Step-Down DC-DC Converter Datasheet
What is the input voltage range for the LM3671?
The LM3671 operates from 2.7 V to 5.5 V input.
How much quiescent current does the LM3671 draw in shutdown mode?
In shutdown mode the device draws a typical 0.01 pA.