ADP3025 Datasheet - Analog Devices

ADP3025, High Efficiency Dual Output Power Supply Controller

High Efficiency Dual Output Power Supply Controller ADP3025 .
The ADP3025 is a highly efficient, dual synchronous buck switching regulator controller optimized for converting a battery or adapter input into the s.

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 driv

Applications

* Portable instruments General-purpose dc-to-dc converters SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM VIN 5.5V TO 25V PFO 5V LINEAR REGULATOR REF Q1 L1 5V SWITCHING CONTROLLER 3.3V SWITCHING CONTROLLER 3.3V Q2 800mV Q3 L2 5V Q4 SS5 SS3 Q5 LINEAR CONTROLLER POWER-ON RESET PWRGD 2.5V ADP3025 Figure 1.

ADP3025_AnalogDevices.pdf