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RT9992 - 5+2 Channel DC/DC Converters

Description

This is a 5+2 CH integrated PMIC for DV application.

There are 5 DC/DC converters : one synchronous step-up, one selectable synchronous step-up/step-down, two synchronous step-downs, and one WLED driver in either asynchronous step-up or current source mode, selectable by VOUT6 initial voltage.

Features

  • All Power MOSFETs Integrated.
  • 5 Channels with Internal Compensation.
  • Flexible Enabling Control  Enabled Independently or in Preset Power On/ Off Sequences.
  • CH2 Synchronous Converter in Step-Up or StepDown Mode Selectable by SEL Pin.
  • Synchronous Step-Down DC/DC Converter  Up to 95% Efficiency  100% (max) Duty Cycle.
  • Synchronous Step-Up DC/DC Converter  Adjustable Output Voltage  Up to 95% Efficiency.
  • Asynchronous Step-Up Converter to Drive WLED, Selectable.

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Datasheet Details

Part number RT9992
Manufacturer Richtek
File Size 364.11 KB
Description 5+2 Channel DC/DC Converters
Datasheet download datasheet RT9992 Datasheet

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Full PDF Text Transcription

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® RT9992 5+2 CH DC/DC Converters for DV General Description This is a 5+2 CH integrated PMIC for DV application. There are 5 DC/DC converters : one synchronous step-up, one selectable synchronous step-up/step-down, two synchronous step-downs, and one WLED driver in either asynchronous step-up or current source mode, selectable by VOUT6 initial voltage. In addition, there are 2 LDO regulators : one RTC LDO and one generic LDO. The generic LDO can choose internal feedback loop for fixed output 2.5V or external feedback loop for customized output voltage. Both low voltage synchronous step-up converters are with load disconnect function. All power MOSFETs and compensation networks are integrated. There is a power good indicator to monitor FB2, FB3, and FB4 voltage status.
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