LM3671 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

LM3671
Manufacturer

TI
ChipWorker Part#

CW392826690
Description

2MHz, 600mA Step-Down DC-DC Converter
Documentation

Datasheet

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LM3671 Specifications

Attribute	Attribute Value

Part Number	LM3671
Manufacturer	TI
ChipWorker Part#	CW392826690
Documentation	Datasheet
Case/Package	DSBGA-5
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RoHS	See ti.com
Lead-Free Status	Lead Free

Product Description

The LM3671 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version range from 1.1 V to 3.3 V.
The device offers superior features and performance for mobile phones and similar portable systems. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system control. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typical). Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typical) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typical).
A high-switching frequency of 2 MHz (typical) allows use of tiny surface-mount components. Only three external surface-mount components, an inductor, and two ceramic capacitors, are required.
For all available packages, see the orderable addendum at the end of the datasheet.
LM3671-Q1 is Qualified for Automotive Applications
AEC Q100-Qualified With the Following Results
Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
16-µA Typical Quiescent Current
600-mA Maximum Load Capability
2-MHz PWM Fixed Switching Frequency (Typical)
Automatic PFM-PWM Mode Switching
Internal Synchronous Rectification for High Efficiency
Internal Soft Start
0.01-µA Typical Shutdown Current
Operates from a Single Li-Ion Cell Battery
Only Three Tiny Surface-Mount External Components Required (One Inductor, Two Ceramic Capacitors)
Current Overload and Thermal Shutdown Protection
Available in Fixed Output Voltages and Adjustable Version

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