♦ 1.8V to 5.5V Input Voltage Range ♦ Input Undervoltage Lockout ♦ 0.5mA Quiescent Current ♦ 640kHz/1.2MHz Current-Mode Step-Up Regulator Fast Transient Response High-Accuracy Output Voltage (1.5%) Built-In 14V, 2.5A, 115mΩ MOSFET High Efficiency Prog...