ADP3026 Datasheet | Analog Devices

Features Wide input voltage range: 5.5 V to 25 V High conversion efficiency > 96% Integrated current sense- no external resistor required Low shutdown current: 19 µA (typical) Voltage mode PWM with input feed-forward for fast line transient response Dual synchronous buck controllers Built-in gate drive boost circuit for driving external N-channel MOSFETs 2 fixed output voltages: 3.3 V and 5 V PWM frequency: 200 k Hz Extensive circuit protection functions APPLICATIONS Portable instruments General-purpose dc-to-dc converters High Efficiency Dual Power Supply Controller GENERAL DESCRIPTION The ADP3026 is a highly efficient dual synchronous buck switching regulator controller optimized for converting a battery or adapter input into multiple supply voltages. The ADP3026 provides accurate and reliable short-circuit protection using an internal current sense circuit, which reduces cost and increases overall efficiency. Other protection Features include programmable soft start, UVLO, and integrated output undervoltage/overvoltage protection. The ADP3026 is specified over the 0°C to 70°C mercial temperature range and is available in a 28-lead TSSOP package. VIN 5.5V TO 25V Q3 L2 5V Q4 FUNCTIONAL BLOCK DIAGRAM 5V LINEAR REF 5V SMPS 3.3V SMPS Q1 L1 Q2 3.3V SS5 SS3 02950-001 PWRGD POWER-ON RESET ADP3026 Figure 1. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 .analog....