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Step-Down Converter. TPS62865 Datasheet







TPS62865 Converter. Datasheet pdf. Equivalent






Part

TPS62865

Description

4-A and 6-A Synchronous Step-Down Converter

Manufacture

Texas Instruments

Datasheet
Download TPS62865 Datasheet


Texas Instruments TPS62865

TPS62865; TPS62865, TPS62867 SLUSDN8 – MARCH 202 1 TPS62865/TPS62867 2.4-V to 5.5-V Inpu t, 4-A and 6-A Synchronous Step-Down Co nverter in 1.5-mm × 2.5-mm QFN Package 1 Features • DCS-Control topology f or fast transient response • 11-mΩ a nd 10.5-mΩ internal power MOSFETs • 1% output voltage accuracy • 4-µA op erating quiescent current • 2.4-V to 5.5-V input voltage range • 0.6-V .


Texas Instruments TPS62865

to VIN output voltage range • Fixed (s electable by external resistor) and adj ustable output voltage versions • 2.4 -MHz switching frequency • Forced PWM or power save mode • Output voltage discharge • 100% duty cycle mode • Hiccup short-circuit protection • Pow er good indicator with window comparato r • Thermal shutdown • Solution siz es down to 30 mm2 possible • Availab le in 1.5-mm × 2.5-mm QFN with 0.5-mm p itch • Create a custom design using t he TPS62865 with the WEBENCH® Power De signer • Create a custom design using the TPS62867 with the WEBENCH® Power Designer 2 Applications • Core suppl y for FPGAs, CPUs, ASICs, or video chip sets • Machine vision cameras • IP network cameras • Solid-state drives • Optical modules • Multifunction.



Part

TPS62865

Description

4-A and 6-A Synchronous Step-Down Converter

Manufacture

Texas Instruments

Datasheet
Download TPS62865 Datasheet




 TPS62865
TPS62865, TPS62867
SLUSDN8 – MARCH 2021
TPS62865/TPS62867 2.4-V to 5.5-V Input, 4-A and 6-A Synchronous Step-Down
Converter in 1.5-mm × 2.5-mm QFN Package
1 Features
• DCS-Control topology for fast transient response
• 11-mΩ and 10.5-mΩ internal power MOSFETs
• 1% output voltage accuracy
• 4-µA operating quiescent current
• 2.4-V to 5.5-V input voltage range
• 0.6-V to VIN output voltage range
• Fixed (selectable by external resistor) and
adjustable output voltage versions
• 2.4-MHz switching frequency
• Forced PWM or power save mode
• Output voltage discharge
• 100% duty cycle mode
• Hiccup short-circuit protection
• Power good indicator with window comparator
• Thermal shutdown
• Solution sizes down to 30 mm2 possible
• Available in 1.5-mm × 2.5-mm QFN with 0.5-mm
pitch
• Create a custom design using the TPS62865 with
the WEBENCH® Power Designer
• Create a custom design using the TPS62867 with
the WEBENCH® Power Designer
2 Applications
Core supply for FPGAs, CPUs, ASICs, or video
chipsets
Machine vision cameras
IP network cameras
Solid-state drives
Optical modules
Multifunction printers
VIN
2.4 V to 5.5 V
VIN
L1
0.22 µH
VOUT
0.9 V
SW
R3
C1, C2 EN
2×10 µF
VOS
C3, C4
2×22 µF
R1
PG
PG
FB
VSET/MODE
R2
PGND AGND
3 Description
The TPS62865 and TPS62867 devices are high-
frequency synchronous step-down converters which
provide an efficient, flexible, and high power-density
solution. At medium to heavy loads, the converters
operate in PWM mode and automatically enter Power
Save Mode operation at light load to maintain high
efficiency over the entire load current range. The
devices can also be forced in PWM mode operation
to minimize output voltage ripple. Together with
its DCS-control architecture, excellent load transient
performance and tight output voltage accuracy are
achieved. The devices feature a Power Good signal
and an internal soft start circuit. The devices are able
to operate in 100% mode. For fault protection, the
devices incorporate a HICCUP short circuit protection
as well as a thermal shutdown.
Device Information
PART NUMBER
PACKAGE(1)
BODY SIZE (NOM)
TPS62865
TPS62867
QFN (9)
1.5 × 2.5 × 1 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
2.4 V to 5.5 V
VIN
R3
C1, C2 EN
2×10 µF
SW
VOS
FB
L1
0.22 µH
VOUT
1.8 V
C3, C4
2×22 µF
PG
PG VSET/MODE
PGND AGND
R4
133 k¡
Typical Application Schematics - Adjustable
Output Voltage
Typical Application Schematics - Fixed Output
Voltage
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.





 TPS62865
TPS62865, TPS62867
SLUSDN8 – MARCH 2021
www.ti.com
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Device Options................................................................ 3
6 Pin Configuration and Functions...................................3
7 Specifications.................................................................. 4
7.1 Absolute Maximum Ratings ....................................... 4
7.2 ESD Ratings .............................................................. 4
7.3 Recommended Operating Conditions ........................4
7.4 Thermal Information ...................................................5
7.5 Electrical Characteristics ............................................6
7.6 Typical Characteristics................................................ 7
8 Detailed Description........................................................8
8.1 Overview..................................................................... 8
8.2 Functional Block Diagram........................................... 8
8.3 Feature Description.....................................................8
8.4 Device Functional Modes..........................................10
9 Application and Implementation.................................. 12
9.1 Application Information............................................. 12
9.2 Typical Application.................................................... 12
10 Power Supply Recommendations..............................19
11 Layout........................................................................... 20
11.1 Layout Guidelines................................................... 20
11.2 Layout Example...................................................... 20
12 Device and Documentation Support..........................22
12.1 Device Support....................................................... 22
12.2 Documentation Support.......................................... 22
12.3 Support Resources................................................. 22
12.4 Trademarks............................................................. 22
12.5 Electrostatic Discharge Caution..............................22
12.6 Glossary..................................................................23
13 Mechanical, Packaging, and Orderable
Information.................................................................... 23
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
March 2021
REVISION
*
NOTES
Initial Release
2
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Product Folder Links: TPS62865 TPS62867
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