ZHCS484H October   2011  – January 2017 TLV62080 , TLV62084 , TLV62084A

UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 修订历史记录
  5. 5  Device Comparison Table
  6. 6 Pin Configurations 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. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 Third-Party Products Disclaimer
      2. 12.1.2 开发支持
        1. 12.1.2.1 使用 WEBENCH® 工具定制设计方案
    2. 12.2 文档支持
    3. 12.3 相关链接
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 接收文档更新通知
    7. 12.7 社区资源
    8. 12.8 Glossary
  13. 13机械、封装和可订购信息

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.

space

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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