AGREE

This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Cookie Statement.
If you decline, your information won’t be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked. Find out more here.

RT5091D

Power Management Unit Total Power Solution for SSD

RT5091D
New

The RT5091D is a total power management solution for SSDs (Solid State Drive) with dedicated input supply voltages of 3.3V or 5V. The RT5091D incorporates three high-efficiency synchronous buck regulators and one LDO that deliver several output voltages from a single power source. This provides flexibility to support applications of different VIDs with a regulated power-on sequence. The RT5091D can provide configurable output voltages to supply ASIC core, DDR, Flash I/O, and PHY. With a dedicated I2C interface, it supports dynamic voltage scaling (DVS), and PS3.5/PS4 power states for minimized standby power consumption.

Applications

  • Solid State Drives

Key Spec.

RT5091D
Status NRND
Vin (min) (V) 2.8
Vin (max) (V) 5.5
Number of Channels 4
Number of Buck Converters 3
Number of Boost Converters 0
Number of Negative Outputs 0
Number of LED Drivers 0
Number of LDO Regulators 1
Application SSD
Features Built-in Bootstrap Switch;COT Control;Current Mode Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Fast Transient Response;High PSRR;I2C;Internal Compensation;Low Dropout;OCP;OVP;Power Good;SCP;Stable with Ceramic Capacitor;UVP
Package Type WQFN4x4-32

Features

  • Input Supply Voltage Range : 2.8V to 5.5V

  • Three High-Efficiency Configurable Low-Voltage Buck Converters at Default Switching Frequency of 2MHz
    ► CH1 for ASIC Core Power :
    Fixed and Adjustable Output by REFIN, Adaptive Voltage 0.7V to 1.3V in 10mV Step by I2C. 4A Max.
    ► CH2 for DRAM or NAND Core Power :
    Buck Mode : Fixed and Adjustable Output by FB2. 2A Max.
    Bypass Mode : Load Switch and Soft-Start Control, 4A Max.
    ► CH3 for Flash I/O Power :
    Fixed and Adjustable Output by FB3. 2A Max.

  • One LDO of Low Quiescent Current
    ► LDO for Analog and PHY Power :
    Fixed and Adjustable Output by FB4. 300mA Max.

  • Internal Soft-Start and Current Limit Protection for CH1 to CH3 and LDO

  • STANDBY and PS3P5 Pins for PS3.5 and PS4 Power States Control

  • Two Output Pins to Control External Regulators/ Switches

  • One Input Pin to Sense External Regulators/ Switches Output Voltage

  • High-Speed Mode I2C Interface for CH1 Output Voltage Programming

  • PGOOD Indicator for Output Voltages and System Input Brownout Monitor

  • Power Sequence Control During Start-up

  • Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Under-Voltage Lockout (UVLO), and Thermal Shutdown Protection

  • Small 32-Lead WQFN Package

Datasheet

DS5091D-00.pdf

Datasheet

DS5091D-00.pdf

Contact us for more information