| Description & Applications | PWM/VFM step-down DC/DC converter with Synchronous Rectifier • Built-in Driver ON Resistance P-channel 0.35Ω, N-channel 0.45Ω (at VIN=3V) • Built-in Soft-start Function (TYP. 1.5ms), and Latch-type Protection Function (Delay Time; TYP. 1.5ms) • Two choices of Oscillator Frequency 500kHz, 800kHz • PWM/VFM alternative with MODE pin PWM operation; MODE pin at “L”, •VFM operation; MODE pin at “H” High Efficiency TYP. 90% Output Voltage Stepwise Setting with a step of 0.1V in the range of 1.2V ∼ 4.0V(XX1A/B Type) or adjustable in the range of 0.8V to VIN(001C/D Type) • High Accuracy Output Voltage ±2.0%(XX1A/B Type) • Package • • • • • SON8 (Max height 0.9mm, thin type) • Power source for portable equipment. |