MAX1800 Datasheet - Maxim

MAX1800, Digital Camera Step-Up Power Supply

19-1833; Rev 0; 10/00 KIT ATION EVALU E L B AVAILA Digital Camera Step-Up Power Supply

Features

* o +0.7V to +5.5V Input Voltage Range o Main DC-DC Converter 95% Efficiency +2.7V to +5.5V Adjustable Output Voltage 1.5A Load Current o Uncommitted Gain Block for Linear Regulator o Three Independent Auxiliary Step-Up Controllers Adjustable Maximum Duty Cycle o Oscillator and Reference Outputs to Dr

Applications

* that use either two or three primary cells or a single lithium-ion (Li+) battery. The main DC-DC converter accepts inputs from +0.7V to +5.5V and regulates a resistor-adjustable output from 2.7V to 5.5V. It uses an internal synchronous rectifier to regulate the output with 95% efficiency. An adjusta

MAX1800_MaximIntegratedProducts.pdf