3A High Performance Step-Up DC-DC Converter


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The RT9297 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 RT9297 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) 4
SW Current Limit (typ) (A) 3.8
Freq (typ) (kHz) 1240;640
Freq (min) (kHz) 500
Freq (max) (kHz) 1500
Ron (typ) (Ohm) 0.125
Features Adjustable Soft-Start;Enable Input;OCP;OVP;UVP
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
  • Small 10-Lead WDFN Package
  • RoHS Compliant and Halogen Free
TitleLast UpdateShareDownload
3A High Performance Step-Up DC-DC Converter2008/09/25
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3A High Performance Step-Up DC-DC Converter 2015/05/19
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Additional Documents
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Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT9297GQWWDFN3x3-101500 Not available Buy from Distributor
RT9297GQWWDFN3x3-102500 Not available Buy from Distributor