Ricoh RH5RH12B Manuales de usuario

Tabla de contenidos

• OUTLINE

  1
• FEATURES

  1
• APPLICATIONS

  1
• BLOCK DIAGRAM

  2
• SELECTION GUIDE

  2
• PIN CONFIGURATION

  3
• PIN DESCRIPTION

  3
• ABSOLUTE MAXIMUM RATINGS

  4
• ELECTRICAL CHARACTERITICS

  5
• OPERATION OF STEP-UP DC/DC CONVERTER

  10
• TYPICAL CHARACTERISTICS

  13
• 1) Output Voltage vs. Output Current

  13
• 2) Efficiency vs. Output Current

  14
• 3) Supply Current (No Load) vs. Input Voltage

  15
• 4) Output Current vs. Ripple Voltage

  15
• 5) Start-up/Hold-on Voltage vs. Output Current (Topt=25˚C)

  16
• 6) Output Voltage vs. Temperature

  17
• 7) Start-up Voltage vs. Temperature

  18
• 8) Hold-on Voltage vs. Temperature

  18
• 9) Supply Current 1 vs. Temperature

  18
• 11) Lx Switching Current vs. Temperature

  18
• 13) Oscillator Frequency vs. Temperature

  19
• 15) Vlx Voltage Limit vs. Temperature

  20
• 17) EXT “L” Output Current vs. Temperature

  20
• 19) Distribution of Output Voltage

  22
• • CE pin Drive Circuit

  22
• TYPICAL APPLICATIONS

  23
• • RH5RH ×× 2B

  23
• APPLICATION CIRCUITS

  26
• • Step-down Circuit

  26
• PACKAGE DIMENSIONS

  28
• TAPING SPECIFICATIONS

  28