Specification	LMR61428XMMX/NOPB

Current - Output	2.85 A
Frequency - Switching [Max]	2 MHz
Frequency - Switching [Min]	300 kHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Synchronous Rectifier	False
Topology	Boost
Voltage - Input (Max) [Max]	14 V
Voltage - Input (Min) [Min]	1.2 V
Voltage - Output (Max) [Max]	14 V
Voltage - Output (Min/Fixed)	1.24 V

LMR61428 Series

Part	Output Type	Package / Case	Package / Case [custom]	Package / Case	Voltage - Input (Min) [Min]	Frequency - Switching [Max]	Frequency - Switching [Min]	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Output Configuration	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Topology	Mounting Type	Voltage - Input (Max) [Max]	Function	Current - Output	Voltage - Input [Min]	Voltage - Input [Max]	Outputs and Type	Outputs and Type	Voltage - Output	Regulator Topology	Frequency - Switching	Board Type	Main Purpose	Supplied Contents	Utilized IC / Part
Texas Instruments LMR61428XMMX/NOPB	Adjustable	8-MSOP 8-TSSOP	0.118 in	3 mm	1.2 V	2 MHz	300 kHz		1.24 V	Positive	14 V	85 °C	-40 °C	1	Boost	Surface Mount	14 V	Step-Up	2.85 A
Texas Instruments LMR61428XMMEVM/NOPB																			500 mA	3.3 V	3.7 V	Non-Isolated	1	5 V	Boost	1.2 MHz	Fully Populated	DC/DC Step Up	Board(s)	LMR61428

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	3500	$ 0.90
		7000	$ 0.86
		10500	$ 0.83
Texas Instruments	LARGE T&R	1	$ 1.47
		100	$ 1.22
		250	$ 0.87
		1000	$ 0.66

Description

General part information

LMR61428 Series

The LMR61428 is a step-up DC-DC switching regulator for battery-powered and low input voltage systems that can achieve efficiencies up to 90%. It has a wide input voltage range from 1.2V to 14V and a possible regulated output voltage range of 1.24V to 14V. It has an internal 0.17Ω N-Channel MOSFET power switch.

The high switching frequency of up to 2MHz of the LMR61428 allows for tiny surface mount inductors and capacitors. Because of the unique constant-duty-cycle gated oscillator topology very high efficiencies are realized over a wide load range. The supply current is reduced to 80µA because of the BiCMOS process technology. In the shutdown mode, the supply current is less than 2.5µA. The LMR61428 is available in a VSSOP-8 package.