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MAX1802 - Digital Camera Step-Down Power Supply

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General Description

The MAX1802 provides a complete power-supply solution for digital still cameras and video cameras by integrating two high-efficiency step-down DC-DC converters and three auxiliary step-up controllers.

This complete solution is targeted for applications that use either three to four alkaline cells or two lithium-ion (Li+) cells.

The main step-down DC-DC controller accepts inputs from 2.5V to 11V and regulates a resistor-adjustable output from 2.7V to 5.5V.

Overview

19-1850; Rev 0; 10/00 Digital Camera Step-Down Power Supply General.

Key Features

  • expandability by supplying power, an oscillator signal, and a reference to the MAX1801, a low-cost slave DC-DC controller that supports step-up, single-ended primary inductance converter (SEPIC), and fly-back configurations. The MAX1802 is available in a space-saving 32-pin TQFP package (5mm x 5mm body), and the MAX1801 is available in an 8-pin SOT-23 package. An evaluation kit (MAX1802EVKIT) featuring both devices is available to expedite designs. o 2.5V to 11V Input Voltage Range o Main DC-DC.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX180 Complete / 8-Channel / 12-Bit Data-Acquisition Systems
MAX1800 Digital Camera Step-Up Power Supply
MAX1804 External Four-Input Feedback Integrator for Power Supplies
MAX1805 Multichannel Remote / Local Temperature Sensor
MAX1809 3A / 1MHz / DDR Memory Termination Supply
MAX181 Network Interface Card Smart Regulator
MAX1810 Network Interface Card Smart Regulator
MAX1811 USB-Powered Li+ Charger
MAX1812 Dual USB Switch with Fault Blanking
MAX1813 Dynamically-Adjustable / Synchronous Step-Down Controller with Integrated Voltage Positioning