JAJSEW5 March   2018 TPS62243-Q1 , TPS62244-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      標準アプリケーション回路図
      2.      効率と出力電流との関係
  4. 4 改訂履歴
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Undervoltage Lockout
      2. 8.3.2 Enable
      3. 8.3.3 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Soft Start
      2. 8.4.2 Power Save Mode
        1. 8.4.2.1 100% Duty Cycle Low Dropout Operation
      3. 8.4.3 Short-Circuit Protection
  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 Output Filter Design (Inductor and Output Capacitor)
          1. 9.2.2.1.1 Inductor Selection
          2. 9.2.2.1.2 Output Capacitor Selection
          3. 9.2.2.1.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 デベロッパー・ネットワークの製品に関する免責事項
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報
    1. 13.1 Package Option Addendum
      1. 13.1.1 Packaging Information
      2. 13.1.2 Tape and Reel Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.2.3 Application Curves

The conditions for below application curves are VIN = 3.0V, VOUT= 1.25V and the components listed in Table 2, unless otherwise noted.

TPS62243-Q1 TPS62244-Q1 SLVSEK3_eff_1p25V.gifFigure 8. Efficiency vs Output Current, VOUT = 1.25V
TPS62243-Q1 TPS62244-Q1 SLVSEK3_eff_1p8V.gif
Figure 10. Efficiency vs Output Current, VOUT = 1.8V
TPS62243-Q1 TPS62244-Q1 Startup_100R_1p25V_3V.gif
1.
VIN = 3V RLoad = 100Ω VOUT = 1.25V
Figure 12. Start-Up Timing
TPS62243-Q1 TPS62244-Q1 SP_3V_1p25V_25mA_PFM.gif
VIN = 3V IOUT = 25mA VOUT = 1.25V
Figure 14. Typical PFM Mode Operation
TPS62243-Q1 TPS62244-Q1 loadt_5mA_150mA_3V_1p25V.gif
VIN = 3V IOUT = 5mA to 150mA to 5mA VOUT = 1.25V
Rise / Fall Time 1µs
Figure 16. Load Transient PFM / PWM Mode
TPS62243-Q1 TPS62244-Q1 SLVSEK3_VO_1p25V_25DC.gifFigure 9. Output Voltage vs Output Current 1.25V VOUT
TPS62243-Q1 TPS62244-Q1 SLVSEK3_VO_1p8V25DC.gif
Figure 11. Output Voltage vs Output Current, VOUT = 1.8V
TPS62243-Q1 TPS62244-Q1 SP_3V_1p25V_150mA_PWM.gif
VIN = 3V IOUT = 150mA VOUT = 1.25V
Figure 13. Typical PWM Mode Operation
TPS62243-Q1 TPS62244-Q1 loadt_1mA_25mA_3V_1p25V.gif
VIN = 3V IOUT = 1mA to 25mA to 1mA VOUT = 1.25V
Rise / Fall Time 1µs
Figure 15. Load Transient PFM Mode
TPS62243-Q1 TPS62244-Q1 linetr_2p3V_2p7V_25mA.gif
VIN = 2.3V to 2.7V to 2.3V IOUT = 25mA VOUT = 1.25V
Rise / Fall Time 10µs
Figure 17. Line Transient PFM Mode