LM3370SD-3621

$0.74

Description：IC REG BUCK 1.5V/3.3V DL 16WSON
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:55c63b180663 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM3370SD-3621 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK 1.5V/3.3V DL 16WSON. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3370SD-3621

Description：IC REG BUCK 1.5V/3.3V DL 16WSON
Series：-
Mfr：National Semiconductor
Package：Bulk
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：2
Voltage - Input (Min)：2.7V
Voltage - Input (Max)：5.5V
Voltage - Output (Min/Fixed)：1.5V, 3.3V
Voltage - Output (Max)：-
Current - Output：600mA
Frequency - Switching：2MHz
Synchronous Rectifier：Yes
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WFDFN Exposed Pad
Supplier Device Package：16-WSON (5x4)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM3370SD-3621

LM3370SD-3621

Voltage Regulators - DC DC Switching Regulators Overview

The LM3370SD-3621 is a dual synchronous step-down DC-DC converter manufactured by Texas Instruments, continuing the National Semiconductor lineage. It operates with an input voltage range of 2.7 V to 5.5 V and provides two independent outputs. The device features a fixed switching frequency of 2 MHz and delivers up to 600 mA per channel. It utilizes a WSON-16 package and supports an operating temperature range from -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Dual synchronous buck topology for efficient power conversion
Integrated dynamic voltage scaling capability
Compact surface-mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

Single-cell lithium-ion battery powered circuits
Ultra-low voltage digital logic supply
Portable embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation carefully, as the component was originally developed by National Semiconductor and is now produced by Texas Instruments. Confirm the specific suffix indicates the correct output voltage configuration. Ensure compatibility with the WSON-16 footprint during procurement planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring two regulated rails from a single cell source. The 2 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the required output voltages match the fixed options available in the SD-3621 variant.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3370 family of dual synchronous step-down converters. Originally released by National Semiconductor, the product line is now managed by Texas Instruments following their acquisition. The series is designed for applications needing compact, high-efficiency power management from single-cell batteries.