loading
About Richtek | Contact Us |

The RT8298A is a synchronous step-down DC/DC converter with an integrated high side internal power MOSFET and a gate driver for a low side external power MOSFET. It can deliver up to 6A output current from a 4.5V to 24V input supply. The RT8298A's current mode architecture allows the transient response to be optimized over a wider input voltage and load range. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. The RT8298A is synchronizable to an external clock with frequency ranging from 300kHz to 1.5MHz.

The RT8298A is available in SOP-8 (Exposed Pad) packages.

Applications

  • Point of Load Regulator in Distributed Power System
  • Digital Set top Boxes
  • Personal Digital Recorders
  • Broadband Communications
  • Flat Panel TVs and Monitors
Key Spec.
RT8298A
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 24
Number of Outputs 1
Vout (min) (V) 0.8
Vout (max) (V) 15
Output Adj. Method Resistor
Iout (max) (A) 6
Current Limit (typ) (A) 10
Freq (typ) (kHz) 600
Freq (min) (kHz) 300
Freq (max) (kHz) 1500
Ext Sync Yes
Ron_HS (typ) (mOhm) 45
Iq (typ) (mA) 0.9
Features Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;External Synchronization;Force PWM;Internal Compensation;OCP;OTP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type PSOP-8
Features
  • 4.5V to 24V Input Voltage Range
  • 6A Output Current
  • 45mΩ Internal High Side N-MOSFET
  • Current Mode Control
  • 600kHz Switching Frequency
  • Adjustable Output from 0.8V to 15V
  • Up to 95% Efficiency
  • Internal Compensation
  • Stable with Ceramic Capacitors
  • Synchronous External Clock : 300kHz to 1.5MHz
  • Cycle-by-Cycle Current Limit
  • Input Under Voltage Lockout
  • Output Under Voltage Protection
  • Power Good Indicator
  • Thermal Shutdown Protection
  • Force PWM Turn On
  • RoHS Compliant and Halogen Free
Reference Design
TitleLast UpdateDownload
Richtek Load Transient Tool2022/07/25
Please confirm with our distributor or sales representative for actual stock status.
TOP