TPS82085 Modules Datasheet

TPS82085 Datasheet PDF, Equivalent


Part Number

TPS82085

Description

High Efficiency Step-Down Converter MicroSiP Modules

Manufacture

etcTI

Total Page 25 Pages
Datasheet
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TPS82085
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TPS82085, TPS82084
SLVSCN4D – OCTOBER 2014 – REVISED JUNE 2019
TPS82084 (2-A) / TPS82085 (3-A) High Efficiency Step-Down Converter MicroSiP™
Modules with Integrated Inductor
1 Features
1 Low Profile MicroSiP™ Power Module
• DCS-control topology
• Up to 95% efficiency
• 17-µA operating quiescent current
• -40°C to 125°C operating temperature range
• Hiccup short circuit protection
• 2.5-V to 6-V input voltage range
• 0.8-V to VIN adjustable output voltage
• Power save mode for light load efficiency
• 100% duty cycle for lowest dropout
• Output discharge function
• Power good output
• Integrated soft startup, and support pre-biased
startup
• Over temperature protection
• CISPR11 class B compliant
• 2.8-mm x 3.0-mm x 1.3-mm 8-Pin µSiL package
2 Applications
• Optical module
• Single board computer
• Solid state drive
• Metro data center
• Audio/video control system
• Radar
space
VIN
2.5V to 6V C1
10µF
1.8 V Output Application
TPS82085
VIN VOUT
EN
FB
GND
PG
R1 R3
200k 499k
R2
160k
C2
22µF
VOUT
1.8V/3A
POWER GOOD
3 Description
The TPS82084/5 are 2-A/3-A step-down converter
MicroSiP™ modules optimized for small solution size
and high efficiency. The power module integrates a
synchronous step-down converter and an inductor to
simplify design, reduce external components and
save PCB area. The low profile and compact solution
is suitable for automated assembly by standard
surface mount equipment.
To maximize efficiency, the converter operates in
PWM mode with a nominal switching frequency of
2.4MHz and automatically enters Power Save Mode
operation at light load currents. In Power Save Mode,
the device operates with typically 17-µA quiescent
current. Using the DCS-Control topology, the device
achieves excellent load transient performance and
accurate output voltage regulation. The EN and PG
pins, which support sequencing configurations, bring
a flexible system design. An integrated soft startup
reduces the inrush current required from the input
supply. Over temperature protection and Hiccup short
circuit protection deliver a robust and reliable solution.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS82085
µSiL (8)
2.8 mm x 3.0 mm
TPS82084
µSiL (8)
2.8 mm x 3.0 mm
Device Comparison
PART NUMBER
OUTPUT CURRENT
TPS82084
2A
TPS82085
3A
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
1.8 V Output Efficiency
100
90
80
70
60
1m
VIN = 3.0 V
VIN = 3.5 V
VIN = 4.0 V
VIN = 5.0 V
10m
100m
Load (A)
15
D002
1
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.

TPS82085
TPS82085, TPS82084
SLVSCN4D – OCTOBER 2014 – REVISED JUNE 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3
6.2 ESD Ratings.............................................................. 3
6.3 Recommend Operating Conditions........................... 3
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics.......................................... 4
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes.......................................... 9
8 Application and Implementation ........................ 10
8.1 Application Information............................................ 10
8.2 Typical Applications ................................................ 10
9 Power Supply Recommendations...................... 16
10 Layout................................................................... 16
10.1 Layout Guidelines ................................................. 16
10.2 Layout Example .................................................... 16
10.3 Thermal Consideration.......................................... 16
11 Device and Documentation Support ................. 17
11.1 Device Support...................................................... 17
11.2 Related Links ........................................................ 17
11.3 Community Resources.......................................... 17
11.4 Trademarks ........................................................... 17
11.5 Electrostatic Discharge Caution ............................ 17
11.6 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
12.1 Tape and Reel Information ................................... 18
4 Revision History
Changes from Revision C (September 2018) to Revision D
Page
• Correct the part number in the title ........................................................................................................................................ 1
• Add the input voltage range for the output voltage discharge feature in Enable and Disable. ............................................. 9
Changes from Revision B (April 2015) to Revision C
Page
• Added TPS82084 device into this data sheet ....................................................................................................................... 1
• Changed from –40 ºC to –55 ºC for storage temperature range ........................................................................................... 3
• Added thermal information for TPS82085EVM-672. Updated thermal metric value. ............................................................ 4
• Added power save mode waveform diagram to Power Save Mode (PSM) .......................................................................... 8
• Added typical value of the EN pin high/low level input voltage in Enable and Disable.......................................................... 9
• Added pg pin logic table in Power Good Output ................................................................................................................... 9
• Added integrated inductor information in Application Information ....................................................................................... 10
• Added additional efficiency curves and a reference hyperlink to the BOM, Table 3 ........................................................... 12
• Added radiated emission performance graph ..................................................................................................................... 14
Changes from Revision A (April 2015) to Revision B
Page
• Changed the ESD Ratings Charged device model (CDM) From: ±500 V To: ±1000 V......................................................... 3
Changes from Original (October 2014) to Revision A
Page
• Changed the data sheet From: 3-page Product Preview To: Production data ..................................................................... 1
2 Submit Documentation Feedback
Copyright © 2014–2019, Texas Instruments Incorporated
Product Folder Links: TPS82085 TPS82084


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPS82085, TPS82084 SLVSCN4D – OCTOBER 2014 – REVISED JUNE 2019 TPS 82084 (2-A) / TPS82085 (3-A) High Effic iency Step-Down Converter MicroSiP™ M odules with Integrated Inductor 1 Feat ures •1 Low Profile MicroSiP™ Power Module • DCS-control topology • Up to 95% efficiency • 17-µA operating quiescent current • -40°C to 125°C operating temperature range • Hiccup short circuit protection • 2.5-V to 6-V input voltage range • 0.8-V to VI N adjustable output voltage • Power s ave mode for light load efficiency • 100% duty cycle for lowest dropout • Output discharge function • Power goo d output • Integrated soft startup, a nd support pre-biased startup • Over temperature protection • CISPR11 clas s B compliant • 2.8-mm x 3.0-mm x 1.3 -mm 8-Pin µSiL package 2 Applications • Optical module • Single board com puter • Solid state drive • Metro data center • Audio/video control system • Radar space VIN 2.5V to 6V C1 10µ.
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