AAT1351

www.DataSheet4U.com Advanced Analog Technology, Inc. AAT1351 Details are subject to change without notice 2-CHANNEL SWITCHING REGULATOR FEATURES z Complete PWM Power Control Circuitry GENERAL DESCRIPTION The AAT1351 provides an integrated two-channel pulse-width-modulation (PWM) solution for the z Under-Voltage Lockout (UVLO) Protection power supply of DC-DC system; this device offers z Open Drain Output the systems engineer flexibility to tailor-make the z Output Short Circuit Protection power supply circuitry for specific applications. z Low Dissipation Current¡G 1.6mA Each channel contains its own error amplifier, z Dead-Time Control¡G 0% to 100% PWM comparator, dead–time control (DTC) and z Wide Operating Frequency¡G output driver. The under-voltage protection, oscillator, short circuit protection and voltage 10 kHz to 800 kHz reference circuit are the common features for the z VDD Range¡G 4.0V to 14.0V two channels. DataSheet4U.com Shee Both channels of AAT1351 can be used for DC-DC Data PIN CONFIGURATION converter operations including step-up, step-down, and inverting. Dead-time control can be set to TOP VIEW provide 0% to 100% dead-time through a resistive Ct VREF 1 16 divider network. Soft-start can be implemented by 15 Rt SCP 2 paralleling the DTC resistor with a capacitor. Two 3 14 NE1 NE2 dead-time control inputs are assigned for channel 1 13 IE1 IE2 (CH1) and channel 2 (CH2) individually, and dead4 time control inputs can be used to control on / off 5 12 OE1 O...