FEATURES
Input Range : 2.7V to 5.5V Drives up to 5 LEDs at 25mA Each 1MHz Internal Oscillator Thermal Protection Shutdown Output Short-circuit Current Limit and DESCRIPTION
The 1MHz fix-frequency switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple. Internal soft-start circuitry effectively reduces the in-rush current. YB1313 also provides short circuit protection, over-temperature protection and over-voltage protection. In shutdown mode, the shutdown current is less than 1μA. YB1313 is available in a TQFN-16 3x3 package. Over-voltage Protection Under-Voltage Lockout With Hysteresis Automatic Soft-Start Reduces In-Rush Current Three Charge Pump Mode：1x/1.5x/2x 3mm x 3mm TQFN package APPLICATIONS
White LED Backlighting Handheld PCs and PDAs Mobile Phone Typical Application Circuit VIN VIN = 2.7V To 5.5V 0. 47 µF C1C2+ 0. 47 µF C2EN1 1 µF EN2 C1+ VOUT D1 D2 2.2uF YB 1313 D3 D4 D5 ISET GND PGND Figure 1.
Yobon
