A4003C Datasheet | AEROSEMI

FEATURES - 2.7V to 5.5V Input Voltage Range - Three Buck Converters Output Voltage Range: 0.6V to Vin CH1, CH2, CH3 Continuous Load Current / Peak Current: 1A, 1A, 1A / 1.2A, 1.5A, 1.2A (3CH total output power consumption must be less than 6W) 180° Phases Shifted Architecture Fixed 1.5MHz Switching Frequency 100% Duty Cycle Low Dropout Operation <1u A Shutdown Current Independent Enable Control Internal pensation Cycle-by-Cycle Current Limit Short Circuit Protection - Auto Recovery OTP Protection - Available in 20-pin 3mm x 3mm QFN Package GENERAL DESCRIPTION The A4003C is a 3CH power management IC for applications powered by one Li-Ion battery or a DC 5V adapter. It integrates three synchronous buck converters and can provide high efficiency output at light load and heavy load operation. The internal pensation architecture simplifies the application circuit design. Besides, the independent enable control makes the designer have the greatest flexibility to optimize timing for power sequencing purposes. The A4003C is available in a 20 pin QFN 3x3 package. APPLICATION - Smart Phone - IP Camera - Digital Camera PIN CONFIGURATIONS (TOP VIEW) AGND FB1 2 GND1 GND1 LX1 15 14 13 12 11 VCC 16 10 VIN1 AGND 17 9 EN1 EN3 18 8 EN2 VIN3 19 7 VIN2 LX3 20 6 LX2 GND3 FB3 FB2 GND2 GND2 QFN 3x3-20 A4003C Rev1.1 .aerosemi. Aerosemi Proprietary Information.Unauthorized Photocopy and Duplication Prohibited. All Rights Reserved. AEROSEMI A4003C 3CH DC/DC ABSOLUTE MAXIMUM RATINGS Parameter Value...