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R1230D001B Datasheet

Part Number R1230D001B
Manufacturers RICOH
Logo RICOH
Description PWM/VFM step-down DC/DC converter
Datasheet R1230D001B DatasheetR1230D001B Datasheet (PDF)

2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a drive.

  R1230D001B   R1230D001B






Part Number R1230D001D
Manufacturers RICOH
Logo RICOH
Description PWM/VFM step-down DC/DC converter
Datasheet R1230D001B DatasheetR1230D001D Datasheet (PDF)

2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a drive.

  R1230D001B   R1230D001B







Part Number R1230D001C
Manufacturers RICOH
Logo RICOH
Description PWM/VFM step-down DC/DC converter
Datasheet R1230D001B DatasheetR1230D001C Datasheet (PDF)

2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a drive.

  R1230D001B   R1230D001B







Part Number R1230D001A
Manufacturers RICOH
Logo RICOH
Description PWM/VFM step-down DC/DC converter
Datasheet R1230D001B DatasheetR1230D001A Datasheet (PDF)

2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a drive.

  R1230D001B   R1230D001B







PWM/VFM step-down DC/DC converter

2001. Sep. 8 s OUTLINE PWM/VFM step-down DC/DC converter with Synchronous Rectifier R1230D Series The R1230D Series are PWM step-down DC/DC Converters with synchronous rectifier, low supply current by CMOS process. Each of these ICs consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, protection circuits, a protection against miss operation under low voltage (UVLO), PWM/VFM alternative circuit, a chip enable circuit, and a driver transistor. A low ripple, high efficiency step-down DC/DC converter can be easily composed of this IC with only a few kinds of external components, or an inductor and capacitors. (As for R1230D001C/D types, divider resistors are also necessary.) In terms of Output Voltage, it is fixed internally in the R1230DXX1A/B types. While in the R1230D001C/D types, Output Voltage is adjustable with external divider resistors. PWM/VFM alternative circuit is active with Mode Pin of the R1230D Series. Thus,.


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