The RTQ9297 includes a high performance step-up DC-DC converter that provides a regulated supply voltage for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs).

The Boost Converter incorporates current mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in N-Channel power MOSFET to achieve high efficiency and fast transient response.

The RTQ9297 is available in a WDFN -10L 3x3 package.


  • Notebook Computer Displays
  • LCD Monitor Panels
  • LCD TV Panels
Key Spec.
Status Active
Vin (min) (V) 2.6
Vin (max) (V) 5.5
Vout (min) (V) 2.6
Vout (max) (V) 24
Output Adj. Method Resistor
Iq (typ) (mA) 0.5
SW Current Limit (typ) (A) 3.8
Freq (typ) (kHz) 1240;640
Freq (min) (kHz) 640
Freq (max) (kHz) 1240
Ron (typ) (Ohm) 0.125
Features AEC-Q100;Adjustable Soft-Start;Current Mode Control;Cycle-by-Cycle Current Limit;Enable Input;OCP;Stable with Ceramic Capacitor
Package Type WDFN3x3-10
  • High Efficiency Up to 90%
  • Adjustable Output Voltage : VDD to 24V
  • Wide Input Supply Voltage : 2.6V to 5.5V
  • Input Under Voltage Lockout
  • Pin-Programmable Switching Frequency 640kHz/1.2MHz
  • Programmable Soft-Start
  • AEC-Q100 Grade 2 Qualified
  • Small 10-Lead WDFN Package
  • RoHS Compliant and Halogen Free
TitleLast UpdateDownload
3A High Performance Step-Up DC-DC Converter2019/11/11
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Featured Product Tree [Aug., 2023] Selection Guide2023/08/07