IC reference design search
IC manufacturers Texas Instruments

IC manufacturers (104)

reference designLM5149-Q1 | Demoboard LM5149-Q1EVM-2100

Texas Instruments LM5149-Q1 | Demoboard LM5149-Q1EVM-2100

3.5-V to 80-V Synchronous Buck DC/DC Controller

Overview

TopologyBuck Converter
Input voltage3.5-80 V
Output 15 V / 8 A
IC revisionA

Description

The LM5149-Q1EVM-2100 evaluation module (EVM) is a synchronous buck DC/DC regulator that employssynchronous rectification to achieve high conversion efficiency in a small footprint. It operates over a wide input voltage range of V to 80 V, providing a regulated output of 5 V. The output voltage has better than 1% setpoint accuracy and are adjustable by modifying the feedback resistor values, permitting the user to customize the output voltage from 2.5 V to 12 V as needed.

Features

  • Wide input voltage (wide VIN) range of 3.5 V to 80 V
  • Spread spectrum modulation and active EMI filtering for lower EMI
  • Wide duty cycle range with low tON(min) and tOFF(min)
  • Ultra-low shutdown and no-load standby quiescent currents
  • Multiphase capability
  • Peak current-mode control loop architecture
  • Integrated, high-current MOSFET gate drivers
  • Cycle-by-cycle overcurrent protection with programmable hiccup
  • Functional-safety capable

Typical applications

  • High-current automotive electronic systems, Automotive HEV/EV powertrain systems

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
ISAT,10%(A)
RDC max.(mΩ)
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
744373490056
SPECWE-LHMI SMT Power Inductor, 0.56 µH, 17.6 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance0.56 µH
Performance Rated Current17.6 A
Saturation Current @ 30%36.4 A
DC Resistance3.6 mΩ
Self Resonant Frequency85 MHz
Operating Voltage120 V
MountSMT 
Saturation Current @ 10%19.9 A
DC Resistance4.2 mΩ
–Check availability
744383560068
SPECWE-MAPI SMT Power Inductor, 0.68 µH, 13.15 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance0.68 µH
Performance Rated Current13.15 A
Saturation Current @ 30%12.7 A
DC Resistance7.5 mΩ
Self Resonant Frequency75 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%5.8 A
DC Resistance9 mΩ
–Check availability