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reference designLM5121 | Demoboard SNVA726

Texas Instruments LM5121 | Demoboard SNVA726

High Density 72W Battery Powered Synchronous Boost Reference Design

Overview

TopologyBoost Converter
Input voltage5-8.6 V
Switching frequency300 kHz
Output 112 V / 6 A
IC revision1

Description

High Density 72W Battery Powered Synchronous Boost Reference DesignPMP11422 is a synchronous boost power supply using the LM5121 controllers. The design accepts an input voltage of 5Vin to 8.6Vin, and boosts a 12Vout rail capable of sourcing 6A continuous current. The LM5121 integrates an input disconnection switch feature which allows boost short circuit protection, the device turns off the switch when a short circuit event occurs.

Features

High density designIntegrated boost short circuit protection72W capability+/- 5% load transientOvervoltage, and overcurrent protection

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
LR(nH)
IR(A)
SamplesAvailability & Sample
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744302010
SPECWE-HCM SMT High Current Flat Wire Inductor, 105 nH, 76.1 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
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance105 nH
Performance Rated Current76.1 A
Saturation Current @ 10%45 A
Saturation Current @ 30%51 A
DC Resistance0.235 mΩ
Self Resonant Frequency70 MHz
MaterialMnZn 
Packaging Unit1000 
Rated Inductance104 nH
Rated Current30 A
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7443551280
SPECWE-HCI SMT Flat Wire High Current Inductor, 2800 nH, 22.5 A

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.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance2800 nH
Performance Rated Current22.5 A
Saturation Current @ 10%8 A
Saturation Current @ 30%17.5 A
DC Resistance3.3 mΩ
Self Resonant Frequency35 MHz
MaterialWE-PERM 
Packaging Unit400 
Rated Inductance1850 nH
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