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  • TLV6208x 1.2-A and 2-A High-Efficiency Step-Down Converter in 2-mm × 2-mm WSON Package

    • SLVSAK9H October   2011  – January 2017 TLV62080 , TLV62084 , TLV62084A

      UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  • CONTENTS
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  • TLV6208x 1.2-A and 2-A High-Efficiency Step-Down Converter in 2-mm × 2-mm WSON Package
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5  Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 100% Duty-Cycle Low-Dropout Operation
      2. 8.3.2 Enabling and Disabling the Device
      3. 8.3.3 Output Discharge
      4. 8.3.4 Soft Start
      5. 8.3.5 Power Good
      6. 8.3.6 Undervoltage Lockout
      7. 8.3.7 Thermal Shutdown
      8. 8.3.8 Inductor Current-Limit
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Save Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Custom Design With WEBENCH® Tools
        2. 9.2.2.2 Output Filter Design
        3. 9.2.2.3 Inductor Selection
        4. 9.2.2.4 Capacitor Selection
        5. 9.2.2.5 Setting the Output Voltage
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
      2. 12.1.2 Development Support
        1. 12.1.2.1 Custom Design With WEBENCH® Tools
    2. 12.2 Documentation Support
    3. 12.3 Related Links
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Receiving Notification of Documentation Updates
    7. 12.7 Community Resources
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
  14. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DSG|8
    • MPDS308C
Thermal pad, mechanical data (Package|Pins)
  • DSG|8
    • QFND141I
Orderable Information
  • slvsak9h_oa
  • slvsak9h_pm
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DATA SHEET

TLV6208x 1.2-A and 2-A High-Efficiency Step-Down Converter in 2-mm × 2-mm WSON Package

1 Features

  • DCS-Control™ Architecture for Fast Transient Regulation
  • 2.5 to 6-V Input Voltage Range (TLV62080)
  • 2.7 to 6-V Input Voltage Range (TLV62084, TLV62084A)
  • 100% Duty Cycle for Lowest Dropout
  • Power Save Mode for Light Load Efficiency
  • Output Discharge Function
  • Power Good Output
  • Thermal Shutdown
  • Available in 2 mm × 2 mm 8-Terminal WSON Package
  • For Improved Features Set, see the TPS62080
  • Create a Custom Design Using the TLV6208x With the WEBENCH® Power Designer

2 Applications

  • Battery-Powered Portable Devices
  • Point-of-Load Regulators
  • PC, Notebook, Server
  • Set Top Box
  • Solid State Drive (SSD), Memory Supply

3 Description

The TLV6208x family devices are small buck converters with few external components, enabling cost effective solutions. They are synchronous step-down converters with an input voltage range of 2.5 and 2.7 (2.5 V for TLV62080, 2.7 V for TLV62084x) to 6 V. The TLV6208x devices focus on high-efficiency step-down conversion over a wide output current range. At medium to heavy loads, the TLV6208x converters operate in PWM mode and automatically enter power save mode operation at light-load currents to maintain high efficiency over the entire load current range.

To address the requirements of system power rails, the internal compensation circuit allows a wide range of external output capacitor values. With the DCS-Control™ (Direct Control with Seamless transition into Power save mode) architecture excellent load transient performance and output voltage regulation accuracy are achieved. The devices are available in 2-mm × 2-mm WSON package with Thermal Pad.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TLV62080 WSON (8) 2.00 mm × 2.00 mm
TLV62084, TLV62084A
  1. For all available packages, see the orderable addendum at the end of the datasheet.

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Typical Application Schematic

Efficiency vs Output Current, VOUT = 1.2V

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TLV62080 TLV62084 TLV62084A SLVSAK9_simplified_62084.gif
TLV62080 TLV62084 TLV62084A D002_SLVSAK9.gif

4 Revision History

Changes from G Revision (September 2016) to H Revision

  • Added WEBENCH® information to Features, Detailed Design Procedure, and Device Support sectionsGo
  • Added SW (AC, less than 10 ns) to the Absolute Maximum Rating tableGo

Changes from F Revision (January 2015) to G Revision

  • Added TLV62084A device and Applications Go
  • Added Power Good Pin Logic Table (TLV62080/84) and Power Good Pin Logic Table (TLV62084A) Go
  • Added scale factors in Figure 14 Go
  • Changed PCB Layout Image Go
  • Added Receiving Notification of Documentation Updates and Community Resources sections.Go

Changes from E Revision (February 2014) to F Revision

  • Changed Device Information table. Go
  • Renamed the Configuration and Functions section Go
  • Added new TI-Legal note to Application and Implementation section.Go
  • Renamed "Thermal Information" to Thermal ConsiderationsGo

Changes from D Revision (June 2013) to E Revision

  • Added the Device Information table, Power Supply Recommendations, Device and Documentation Support, and Mechanical, Packaging, and Orderable Information sectionsGo
  • Clarified the input voltage ranges of 2.5 V to 5.5 V for the TLV62080 device and 2.7 V to 5.5 V for the TLV62084 deviceGo
  • Changed the Ordering Information table to the Device Comparison table and removed the Package Marking, TA, and Package columns from the table Go
  • Changed the word pin to terminal in most cases throughout the document Go
  • Added the Handling Ratings table which now contains the storage temperature range and ESD ratings Go
  • Added ILIM range for TLV62084 in Electrical Characteristics tableGo
  • Added the higher output voltage graphs "Output Voltage vs Load Current", Figure 6, Figure 7 in the Typical Characteristics sectionGo
  • Replaced the "Switching Frequency vs Load Current" graph to the new "Switching Frequency vs Output Current" graph in the Typical Characteristics sectionGo
  • Replaced the TLV62080 typical application circuit with the circuit for the TLV62084Go
  • Deleted the Parameter Measurement Information Section and moved image and list of components to Typical Application sectionGo
  • Added Table 4 to the Design Requirements section Go
  • Added Moved Waveforms from the Typical Characteristics section into the Application Curves section. Changed LCOIL (coil inductance) to ICOIL (coil current) in the Typical Application (PWM Mode and PFM Mode), Load Transient, Line Transient, and Startup waveformsGo
  • Added the output capacitance and inductance conditions to the first (original) Load Transient graphGo
  • Added the second Load Transient graph (Figure 14)Go

Changes from C Revision (May 2013) to D Revision

  • Deleted TLV62084 device number from datasheetGo

Changes from B Revision (July 2012) to C Revision

  • Changed the Thermal Information table valuesGo

Changes from A Revision (November 2011) to B Revision

  • Changed QFN to SON in ORDERING INFORMATIONGo
  • Changed QFN to SON in DEVICE INFORMATIONGo
  • Changed Thermal Pad description in Pin FunctionsGo
  • Changed TJ in the Absolute Maximum Ratings From: –40 to 125°C To: -40 to 150°CGo
  • Changed several instances of DSC to DCS in DEVICE OPERATION sectionGo
  • Changed DSC to DCS in Functional Block DiagramGo

Changes from * Revision (October 2011) to A Revision

  • Changed pin VSNS to VOS in Figure 9Go
  • Changed pin VSNS to VOS in Figure 10Go

5 Device Comparison Table

PART NUMBER(1) INPUT VOLTAGE OUTPUT CURRENT Power Good Logic Level (EN=Low)
TLV62080 2.5 V to 6 V 1.2 A High Impedance
TLV62084 2.7 V to 6 V 2 A High Impedance
TLV62084A 2.7 V to 6 V 2 A Low
(1) For detailed ordering information please check the Mechanical, Packaging, and Orderable Information section at the end of this datasheet.

6 Pin Configuration and Functions

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8-Pin WSON With Thermal Pad
DSG Package
(Top View)
TLV62080 TLV62084 TLV62084A SLVSAK9_pinout.gif

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Pin Functions

PIN I/O DESCRIPTION
NO. NAME
1 EN IN Device enable logic input. Do not leave floating.
Logic HIGH enables the device, logic LOW disables the device and turns it into shutdown.
2, 3 GND PWR Power and signal ground.
4 FB IN Feedback terminal for the internal control loop.
Connect this terminal to the external feedback divider to program the output voltage.
5 VOS IN Output voltage sense terminal for the internal control loop. Must be connected to output.
6 PG OUT Power Good open drain output.
This terminal is pulled to low if the output voltage is below regulation limits. This terminal can be left floating if not used.
7 SW PWR Switch terminal connected to the internal MOSFET switches and inductor terminal.
Connect the inductor of the output filter here.
8 VIN PWR Power supply voltage input.
Exposed Thermal Pad — Must be connected to GND. Must be soldered to achieve appropriate power dissipation and mechanical reliability.

7 Specifications

7.1 Absolute Maximum Ratings(1)

MIN MAX UNIT
Voltage range(2) VIN, PG, VOS – 0.3 7 V
SW – 0.3 VIN + 0.3 V
SW (AC, less than 10 ns)(3) – 3.0 10 V
FB – 0.3 3.6 V
EN – 0.3 VIN + 0.3 V
Power Good Sink Current PG 1 mA
Operating junction temperature range, TJ – 40 150 °C
Storage temperature range, Tstg – 65 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
(3) While switching.

7.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM) ESD stress voltage(1) ±2000 V
Charged device model (CDM) ESD stress voltage(2) ±500 V
(1) Level listed above is the passing level per ANSI/ESDA/JEDEC JS-001. JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) Level listed above is the passing level per EIA-JEDEC JESD22-C101. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions(1)

MIN TYP MAX UNIT
VIN Input voltage range, TLV62080 2.5 6 V
VIN Input voltage range, TLV62084, TLV62084A 2.7 6 V
TJ Operating junction temperature –40 125 °C
(1) Refer to the Application Information section for further information.

7.4 Thermal Information

THERMAL METRIC(1) TLV6208x
DSG
(8 PINS)		 UNITS
θJA Junction-to-ambient thermal resistance 59.7 °C/W
θJCtop Junction-to-case (top) thermal resistance 70.1 °C/W
θJB Junction-to-board thermal resistance 30.9 °C/W
ψJT Junction-to-top characterization parameter 1.4 °C/W
ψJB Junction-to-board characterization parameter 31.5 °C/W
θJCbot Junction-to-case (bottom) thermal resistance 8.6 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.

7.5 Electrical Characteristics

Over recommended free-air temperature range, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted), VIN= 3.6 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SUPPLY
VIN Input voltage range,TLV62080 2.5 6 V
VIN Input voltage range,TLV62084, TLV62084A 2.7 6 V
IQ Quiescent current into VIN IOUT = 0 mA, Device not switching 30 uA
ISD Shutdown current into VIN EN = LOW 1 µA
VUVLO Under voltage lock out Input voltage falling 1.8 2 V
Under voltage lock out hysteresis Rising above VUVLO 120 mV
TJSD Thermal shutdown Temperature rising 150 °C
Thermal shutdown hysteresis Temperature falling below TJSD 20 °C
LOGIC INTERFACE (EN)
VIH High level input voltage 2.5 V ≤ VIN ≤ 6 V 1 V
VIL Low level input voltage 2.5 V ≤ VIN ≤ 6 V 0.4 V
ILKG Input leakage current 0.01 0.5 µA
POWER GOOD
VPG Power good threshold VOUT falling referenced to VOUT nominal –15 –10 –5 %
Power good hysteresis 5 %
VOL Low level voltage Isink = 500 µA 0.3 V
IPG,LKG PG Leakage current VPG = 5.0 V 0.01 0.1 µA
OUTPUT
VOUT Output voltage range 0.5 4 V
VFB Feedback regulation voltage VIN ≥ 2.5 V and VIN ≥ VOUT + 1 V 0.438 0.45 0.462 V
IFB Feedback input bias current VFB = 0.45 V 10 100 nA
RDIS Output discharge resistor EN = LOW, VOUT = 1.8 V 1 kΩ
RDS(on) High side FET on-resistance ISW = 500 mA 120 mΩ
Low side FET on-resistance ISW = 500 mA 90 mΩ
ILIM High side FET switch current-limit, TLV62080 Rising inductor current 1.6 2.8 4 A
ILIM High side FET switch current-limit, TLV62084, TLV62084A Rising inductor current 2.3 2.8 4 A

7.6 Typical Characteristics

See Typical Application for characterization setup.

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Table 1. Table of Graphs

FIGURE
Efficiency Load current, VOUT = 0.9 V Figure 1
Load current, VOUT = 1.2 V Figure 2
Load current, VOUT = 2.5 V Figure 3
Output Voltage Accuracy Input Voltage, VOUT = 0.9 V Figure 4
Input Voltage, VOUT = 2.5 V Figure 5
Load current, VOUT = 0.9 V Figure 6
Load current, VOUT = 2.5 V Figure 7
Switching Frequency Load current, VOUT = 2.5 V Figure 8
TLV62080 TLV62084 TLV62084A D001_SLVSAK9.gif
VOUT = 0.9 V
Figure 1. Efficiency vs Load Current
TLV62080 TLV62084 TLV62084A D003_SLVSAK9.gif
VOUT = 2.5 V
Figure 3. Efficiency vs Load Current
TLV62080 TLV62084 TLV62084A D002_SLVSAK9.gif
VOUT = 1.2 V
Figure 2. Efficiency vs Load Current
TLV62080 TLV62084 TLV62084A D004_SLVSAK9.gif
VOUT = 0.9 V
Figure 4. Output Voltage vs Input Voltage
TLV62080 TLV62084 TLV62084A D005_SLVSAK9.gif
VOUT = 2.5 V
Figure 5. Output Voltage vs Input Voltage
TLV62080 TLV62084 TLV62084A D007_SLVSAK9.gif
VIN = 3.6 V
Figure 7. Output Voltage vs Load Current
TLV62080 TLV62084 TLV62084A D006_SLVSAK9.gif
VIN = 3.6 V
Figure 6. Output Voltage vs Load Current
TLV62080 TLV62084 TLV62084A D008_SLVSAK9.gif
VOUT = 2.5 V
Figure 8. Switching Frequency vs Output Current

 
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