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RT8092URWSC 15-UFBGA, WLCSP
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  • RT8092URWSC
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RT8092URWSC

Ic Reg Buck Prog 4A Sync

Manufacturer :
Richtek Technology Corporation
Package/Case :
15-UFBGA, WLCSP
Product Categories :
PMIC - Voltage Regulators - DC DC Switching Regulators
Datasheet:
RT8092URWSC PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
838

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RT8092URWSC Product Details

The RT8092URWSC is a Peak-Current Mode Pulse-Width-Modulated (PWM) step-down DC/DC converter with I2C control interface. Capable of delivering 4A continuing output current over a wide input voltage range from 2.5V to 5.5V, the RT8092URWSC is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and handy-terminals. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky barrier diode is required in practical application. The RT8092URWSC enters low-dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper P-MOSFET. The RT8092URWSC enters shut-down mode and consumes less than 5μA when the EN pin is pulled low. The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency of 3MHz. The small WL-CSP-15B 1.2x2 (BSC) and WQFN-14L 3.5x3.5 packages are ideal for small PCB area applications. To increase battery life time, the RT8092URWSC provides low power mode with IQ < 15μA in standby and light-load applications. The RT8092URWSC also includes Dynamic Voltage Scaling (DVS) for system low power applications. The I2C interface let the RT8092URWSC controllable flexibly to select VOUT voltage level, peak current limit level, PWM control mode, and so on. Other features include soft-start, auto discharge, lower internal reference voltage, over-temperature, and over-current protection.

Feature

  • 2.5V to 5.5V Input Range
  • Low Operation Quiescent Current► Normal Mode IQ < 60μA► Low Power Mode IQ < 15μA
  • Output range From 0.3V to 5.5V► Bank 0 : 0.3V to 0.7V► Bank 1 : 0.6V to 1.4V► Bank 2 : 1.2V to 2.8V► Bank 3 : 2.4V to 5.5V► The Default Value is 2.8V (VSEL = High) and 1V (VSEL = Low)
  • 4A Continuing Output Current
  • Support DVS in the Same Bank ► VOUT Adjusting Range (max, min) is Settable
  • High Efficiency► 90% at 5V→2.8V with 1.5A Load
  • 3MHz Fixed-Frequency PWM Operation► Auto-PSM/PWM or Force-PWM Selectable
  • Support Remote Ground Sensing for Accurate Output Voltage
  • Dedicated Hardware Pin to Immediately Switch Nominal Output Voltage Setting
  • Output Discharging when Turning Off
  • Over-Current Protection► OC Level Settable
  • Over-Temperature Protection
  • Integrated Soft-Start Function
  • Enabling Control by Enable Pin and I2C Register Setting by Software
  • I2C Interface► I2C Communication Allowed Even in Off-State (EN = L)► Support Fast Mode (400kbps)► Registers Setting Retained in Off-State (EN = L)
  • RoHS Compliant and Halogen Free

Applications

  • Cellular Telephones
  • Personal Information Appliances
  • Wireless and DSL Modems
  • MP3 Players
  • Portable Instruments
  • Mobile Phone
  • Tablet, Notebook, Pad

RT8092URWSC Block Diagram
(Picture: Diagram)

Technical Parameters

Function Step-Down Voltage Output (Max) 5.5V
Output Configuration Positive Current Output 4A
Topology Buck Frequency Switching 3MHz
Output Type Programmable Synchronous Rectifier Yes
Number of Outputs 1 Operating Temperature -40??C ~ 85??C (TA)
Voltage Input (Min) 2.5V Mounting Type Surface Mount
Voltage Input (Max) 5.5V Package / Case 15-UFBGA, WLCSP
Voltage Output (Min/Fixed) 0.3V Supplier Device Package 15-WLCSP (1.2x2)

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Richtek is an international analog IC design company specializing in providing customers with diverse and competitive products and complete power management solutions. Since its establishment, Rich...

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