LMR61428 SIMPLE SWITCHER® Voltage Regulator



Texas Instruments' SIMPLE SWITCHER®, 14 Vout, 2.85 A, step-up voltage regulator in MSOP


Texas Instruments LMR61428 SIMPLE SWITCHER® Voltage Regulator Texas Instruments' 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 1.2 V to 14 V and a possible regulated output voltage range of 1.24 V to 14 V. It has an internal 0.17 Ω N-Channel MOSFET power switch.

The high switching frequency of up to 2 MHz 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 80 µA because of the BiCMOS process technology.   LMR61428 Datasheet

Features Applications
  • 1.2 V to 14 V input voltage
  • Adjustable output voltage up to 14 V
  • Switch current up to 2.85 A
  • Up to 2 MHz switching frequency
  • Low shutdown Iq, <1 µA
  • Boost/SEPIC conversions from 3.3 V, 5 V, 12 V
  • Space-constrained applications
  • LCD displays
  • LED applications

Buy Now
Digi-Key
Part Number
Texas Instruments
Part Number
Packaging Description  
LMR61428XMM/NOPBTR-ND LMR61428XMM/NOPB Tape & Reel IC REG BOOST ADJ 2.85A 8MSOIC LMR61428 Datasheet
LMR61428XMM/NOPBCT-ND Cut Tape
LMR61428XMM/NOPBDKR-ND Digi-Reel®