Document
AIC1630A
HIGH-EFFICIENCY STEP-UP DC/DC CONVERTER CONTROLLER
SPEC NO: DS-1630A-04
FEATURES
Default +5V Output Voltage. Adjustable Output Voltage with Two Resistors. Power-Saving Shutdown Mode (7µA typical). 120KHz Switching Rate. On-Chip Low Battery Detector.
APPLICATIONS
Palmtop & Notebook Computers. Battery Charger Supply. Cellular Telephone. LCD Contrast Supply. Flash Memory Programmer. Battery Backup Supplies. Portable Instruments.
TYPICAL APPLICATION CIRCUIT
DESCRIPTION
The AIC1630A is a DC-DC converter designed to drive an external power switch for more flexibility, especially in higher voltage and larger power applications. Typically six components are required to set up a step up configuration easily achieving efficiency beyond 80%. A few more components are required to set up a step down configuration delivering 4A load current with 83% typical efficiency, 86% at 2A load, and 300µA quiescent current.
The output voltage can be internally set to 5V or externally set to an arb.