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reference designTPS566242 | Demoboard TPS566242EVM

Texas Instruments TPS566242 | Demoboard TPS566242EVM

TPS566242 and TPS566247 Step-Down Converter

Overview

TopologyBuck Converter
Input voltage3-16 V
Output 16 A

Description

In light-load conditions, the TPS566242 operates in Eco mode to enable higher efficiency by varying its switching frequency. The TPS566247 operates in FCCM to maintain constant switching frequency. The main difference is at light loading, but the other behaviors are similar. This user's guide mainly introduces the TPS566242 and includes some features about the TPS566247 that are different from the TPS566242.

Features

  • Configured for a wide range of applications -3-V to 16-V input voltage range
  • 0.6-V to 7-V output voltage range
  • 0.6-V reference voltage
  • ±1% reference accuracy at 25°C
  • ±1.5% reference accuracy at –40°C to 125°C
  • Integrated 27.7-mΩ and 14.8-mΩ RDSON FET
  • 120-μA low quiescent current
  • 600-kHz switching frequency
  • Supports maximum 98% duty cycle operation
  • Precision EN threshold voltage
  • 1.39-ms fixed typical soft-start time
  • Ease of use and small solution size
  • Eco-mode (TPS566242) and FCCM mode at light loading (TPS566247)
  • Part of a full P2P family including solutions for 4 A, 5 A, and 6 A and FCCM/ECO operation
  • D-CAP3™ control topology
  • Support start-up with prebiased output
  • Non-latch for OV/OT/UVLO protection
  • Hiccup mode for UV protection
  • Cycle-by-cycle OC and NOC limit
  • 6-pin SOT-563 package
  • Create a custom design using the TPS566242 with the WEBENCH® Power Designer
  • Create a custom design using the TPS566247 with the WEBENCH® Power Designer

Typical applications

  • LCD TV, STB and DVR, streaming media player
  • IP network camera, video doorbell, building security gateway, WLAN/Wi-Fi access point, modem (cable/DSL/ GFAST)

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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744373490082
SPECWE-LHMI SMT Power Inductor, 0.82 µH, 15.5 A
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance0.82 µH
Performance Rated Current15.5 A
Saturation Current @ 10%17.4 A
Saturation Current @ 30%31.6 A
DC Resistance4.9 mΩ
Self Resonant Frequency70 MHz
MountSMT 
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