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reference designTPS563249

Texas Instruments TPS563249

17-V, 3-A, Constant 1.4-MHz Synchronous Step-Down Voltage Regulator

Overview

TopologyBuck Converter
Input voltage6.5-17 V
Switching frequency1250-1550 kHz
Output 13.3 V / 3 A
IC revisionSLVSE54A

Description

The TPS563249 is a simple, easy-to-use, 3 A synchronous step-down converter in SOT-23 package.The device is optimized to operate with minimum external component counts and also optimized to achieve low standby current.This switching regulator employs D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.TPS563249 operates in Forced Continuous Conduction Mode (FCCM), which maintains fixed 1.4 MHz switching frequency during light load operation and eliminates system nterference. The TPS563249 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.

Features

  • 3-A Converter Integrated 70-mΩ and 30-mΩ FETs
  • D-CAP3™ Mode Control with Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.6 V to 7 V
  • Forced Continuous Conduction Mode
  • Constant 1.4-MHz Switching Frequency
  • Low Shutdown Current Less than 10 μA
  • 1% Feedback Voltage Accuracy (25ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.7 ms

Typical applications

  • TV, Set-Top Boxes
  • Broadband Modem / Access Point Networks / Wireless Routers / Surveillance

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)
fres(MHz)
VOP(V)
Mount
ISAT,10%(A)
RDC(mΩ)
Material
Qty.
SamplesAvailability & Sample
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744383560056
SPECWE-MAPI SMT Power Inductor, 0.56 µH, 13.65 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
Inductance0.56 µH
Performance Rated Current13.65 A
Saturation Current @ 30%14.7 A
DC Resistance7 mΩ
Self Resonant Frequency85 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%6.9 A
–
–
Packaging Unit1000 
–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
–
–
Packaging Unit1000 
–Check availability
744311100
SPECWE-HCI SMT Flat Wire High Current Inductor, 1 µH, 16.8 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1 µH
Performance Rated Current16.8 A
Saturation Current @ 30%19 A
–
Self Resonant Frequency85 MHz
–
MountSMT 
Saturation Current @ 10%8 A
DC Resistance4.6 mΩ
MaterialSuperflux 
Packaging Unit1000 
–Check availability
744311150
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 13.8 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.5 µH
Performance Rated Current13.8 A
Saturation Current @ 30%14 A
–
Self Resonant Frequency72 MHz
–
MountSMT 
Saturation Current @ 10%4.5 A
DC Resistance6.6 mΩ
MaterialSuperflux 
Packaging Unit1000 
–Check availability