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    • 參數(shù)資料
      型號(hào): R1221N33AA
      廠商: Ricoh Co., Ltd.
      英文描述: Step-down DC/DC Converter with Voltage Detector
      中文描述: 降壓直流/直流電壓檢測(cè)器
      文件頁(yè)數(shù): 6/21頁(yè)
      文件大小: 218K
      代理商: R1221N33AA
      12345
      Rev. 1.11 - 6 -
      n
      TEST CIRCUITS
      Inductor L : 27
      m
      H(Sumida Electronic, CD104) Diode SD : RB491D (Rohm, Schottky type)
      Capacitor CL: 47
      m
      F(Tantalum type) C
      IN
      : 22
      m
      F(Tantalum type)
      Power MOS PMOS : HAT1020R(Hitachi) Resistor R : 100k
      W
      C)
      +
      --
      +
      -
      A)
      4
      3
      6
      5
      V
      OSCILLOSCOPE
      SD
      L
      C
      L
      V
      IN
      1
      PMOS
      C
      IN
      2
      +
      -
      +
      -
      F)
      4
      3
      6
      5
      V
      OSCILLOSCOPE
      SD
      L
      C
      L
      1
      PMOS
      V
      IN
      C
      IN
      2
      A
      3
      4
      6
      5
      1
      V
      IN
      2
      3
      4
      6
      5
      1
      G)
      OSCILLOSCOPE
      V
      IN
      V
      OUT
      2
      E)
      A
      3
      4
      6
      5
      1
      V
      IN
      2
      A
      3
      4
      6
      5
      1
      D)
      V
      EXT
      V
      IN
      V
      OUT
      2
      A
      3
      4
      6
      5
      1
      H)
      V
      IN
      V
      OUT
      2
      A
      I)
      V
      DOUT
      3
      4
      6
      5
      1
      V
      IN
      2
      3
      4
      6
      5
      1
      OSCILLOSCOPE
      J)
      V
      IN
      V
      OUT
      2
      R
      +
      -
      B)
      A
      3
      4
      6
      5
      1
      C
      IN
      2
      V
      IN
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      相關(guān)代理商/技術(shù)參數(shù)
      參數(shù)描述
      R1221N33AA-TR 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:Step-down DC/DC Converter with Voltage Detector
      R1221N33AB 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
      R1221N33AB-TR 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:Voltage-Mode SMPS Controller
      R1221N33AC 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:Step-down DC/DC Converter with Voltage Detector
      R1221N33AC-TR 制造商:RICOH 制造商全稱(chēng):RICOH electronics devices division 功能描述:Step-down DC/DC Converter with Voltage Detector