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1. Describe
RT9293BGJ6 is a high frequency, asynchronous boost converter. Internal MOSFET supports up to 10 White LEDs for backlighting and OLED power applications, And the internal soft-start function can reduce the surge current. The device operates at 1MHz fixed switching frequency to allow for small external components, and Simplify possible EMI issues. For protection, RT9293A provides 50V OVP, RT9293B provides 50V/20V OVP for cheap and small output Capacitors with lower voltage ratings. The LED current is Initially set using an external sense resistor RSET. this RT9293 in tiny package type TSOT-23-6 and WDFN-8L 2x2 package for optimal solution Used to save PCB space and total BOM cost.
2. Feature
1. VIN operating range: 2.5V to 5.5V
2. Internal power N-MOSFET switch
3. Wide-range PWM dimming (100Hz to 200kHz)
4. Minimize the number of external components
5. Internal soft start
6. Internal compensation
7. Undervoltage protection
8. Overvoltage protection
9. Over temperature protection
10. Small TSOT-23-6 and 8-pin WDFN packages
11. RoHS compliant and halogen free
3. Application
1. cell phone
2. digital camera
3. PDAs and smartphones as well as MP3 and OLED.
4. Portable instruments
4. Pin configuration
5. Pin Description
