IC manufacturers Texas Instruments

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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

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
MountISAT,10%
(A)
RDC max.
(mΩ)
Samples
744373490056SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-LHMI SMT Power Inductor 0.56 17.6 36.4 85 SMT 19.9 4.2
744383560068SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-MAPI SMT Power Inductor 0.68 13.15 12.7 7.5 75 80 SMT 5.8 9
Order Code Data­sheet Simu­lation
744373490056SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

744383560068SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT,30%
(A)
RDC typ.
(mΩ)
fres
(MHz)
VOP
(V)
MountISAT,10%
(A)
RDC max.
(mΩ)
Samples