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reference designLM67680-Q1 | Demoboard LM67680-Q1EVM

Texas Instruments LM67680-Q1 | Demoboard LM67680-Q1EVM

LM67680-Q1 60VIN, –12VOUT, –6A, Inverting Buck-Boost DC/DC Regulator Evaluation Module

Overview

TopologyBuck-Boost Converter
Input voltage3.8-60 V
Output 112 V / 6 A
IC revisionA

Description

The LM67680-Q1EVM evaluation module (EVM) is designed to showcase the LM67680-Q1 DC/DC converter configured in an inverting buck-boost (IBB) implementation. The EVM operates over an input voltage range of 3.8V to 60V to deliver a –12V output at up to 6A.

Features

65V synchronous IBB converter with highefficiency over a wide load current range: 93% at48VIN, –12VOUT, –6A

  • Integrated level-shifters on MODE/SYNC, EN, andPG allow easy interface to system control signals
  • Switching frequency of 400kHz synchronizable±20% with an external clock signal
  • ZEN 1 switcher technology– Spread spectrum (DRSS) and switching slewrate control reduce peak emissions– Input π-stage EMI filter helps meet CISPR 25Class 5 and UNECE Reg 10 EMI standards
  • Integrated protection features for robust design:Overcurrent protection (OCP); Power-Good (PG)indicator with 100kΩ pullup to external voltagesource; internal 5.3ms soft-start (SS) timer
  • Fully assembled, tested, and proven PCB layout

Typical applications

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
RDC max.(mΩ)
fres(MHz)
Mount
Z(Ω)
IR(A)
RDC(mΩ)
VR(V (DC))
Winding Style
C
Endurance(h)
IRIPPLE(mA)
RESR(mΩ)
ILeak(µA)
DF(%)
Ø D(mm)
L(mm)
Packaging
SamplesAvailability & Sample
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744393465033
SPECWE-XHMI SMT Power Inductor, 3.3 µH, 20.4 A
Simu­lation
Availability
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Downloads9 files

Status Newi| Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance3.3 µH
Performance Rated Current20.4 A
Saturation Current @ 30%15.6 A
DC Resistance6 mΩ
DC Resistance6.5 mΩ
Self Resonant Frequency21 MHz
MountSMT 
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Length6.6 mm
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744393665068
SPECWE-XHMI SMT Power Inductor, 6.8 µH, 22.2 A
Simu­lation
Availability
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Downloads9 files

Status Newi| Product is new in our portfolio and production is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance6.8 µH
Performance Rated Current22.2 A
Saturation Current @ 30%20 A
DC Resistance7.1 mΩ
DC Resistance9 mΩ
Self Resonant Frequency11 MHz
MountSMT 
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Length11.3 mm
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744237701
SPECWE-CMDC Common Mode Data Line Filter, 9 µH, –
Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMDC Common Mode Data Line Filter
Inductance9 µH
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Impedance700 Ω
Rated Current8 A
DC Resistance6 mΩ
Rated Voltage80 V (DC)
Winding Stylesectional 
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Length12 mm
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875105344009
SPECWCAP-PSLP Aluminum Polymer Capacitors, –, –
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-PSLP Aluminum Polymer Capacitors
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MountV-Chip SMT 
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Rated Voltage16 V (DC)
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Capacitance82 µF
Endurance 2000
Ripple Current2200 mA
ESR35 mΩ
Leakage Current400 µA
Dissipation Factor8 %
Diameter6.3 mm
Length5.8 mm
Packaging15" Tape & Reel 
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