LM3281YFQR - TI

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

Part No

LM3281YFQR
Manufacturer

TI
ChipWorker Part#

CW14553266
Category

DC to DC Converter
Package

UFBGA-6
Description

Conv DC-DC 3V to 5.5V Step Down Single-Out 3.3V 1.2A 6Pin DSBGA T/R
Documentation

Datasheet

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LM3281YFQR Specifications

Attribute	Attribute Value

Part Number	LM3281YFQR
Manufacturer	TI
ChipWorker Part#	CW14553266
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	6 Pin
Case/Package	UFBGA-6
Number of Outputs	1 Output
Output Voltage	3.3 V
Output Current	1.2 A
Quiescent Current	15.0 µA
Number of Regulated Outputs	1 Output
Switching Frequency	6 MHz
Topology	Buck
Input Voltage (Max)	5.5 V
Input Voltage (Min)	3 V
Output Voltage (Min)	3.3 V
Output Current (Max)	1.2 A
Operating Temperature (Max)	90 ℃
Operating Temperature (Min)	-30 ℃
Input Voltage	5.5 V
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Size-Length	1.33 mm
Size-Width	0.956 mm
Size-Height	0.4 mm
Operating Temperature	-30℃ ~ 90℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The LM3281 is a high-efficiency low-noise miniature DC-DC converter optimized for powering noise-sensitive wireless connectivity chipsets and RF Front End Modules (FEMs) from a single Lithium-Ion cell. The LM3281 is ideal for “always on” applications with very low unloaded quiescent current of 16 µA (typ.).
The LM3281 steps down an input supply voltage to a fixed output voltage of 3.3 V with output current up to 1200 mA. Five different modes of operation are used to optimize efficiency and minimize battery drain. In Pulse Width Modulation (PWM) mode, the device operates at a fixed frequency of 6 MHz which minimizes RF interference when driving medium-to-heavy loads. At light load, the device automatically enters into Economy (ECO) mode with reduced quiescent current. In a low-battery voltage condition, a bypass mode reduces the voltage dropout to 60 mV (typ.) at 600 mA. If very low output voltage ripple is desired at light loads, the device can also be forced into PWM mode. Shutdown mode turns the device off and reduces battery consumption to 0.1 µA (typ.).

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