MAX1802 Digital Camera Step-Down Power Supply

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. It uses a synchronous Rectifier to regulate the output with up to 94% efficiency. An adjustable operating frequency (up to 1MHz) facilitates designs for optimum size, cost, and efficiency.
The core Step-down DC-DC Converter accepts inputs from 2.7V to 5.5V and regulates a resistor-adjustable output from 1.25V to 5.5V. It delivers 500mA with up to 94% efficiency.
The three auxiliary Step-up controllers CAN be used to power the digital camera's CCD LCD and backlight. The MAX1802 also 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.
By Maxim Integrated Products
MAX1802 's PackagesMAX1802 's pdf datasheet
MAX1802EHJ TQFP
MAX1802EHJ-T TQFP
MAX1802EHJT TQFP




MAX1802 Pinout, Pinouts
MAX1802 pinout,Pin out
This is one package pinout of MAX1802,If you need more pinouts please download MAX1802's pdf datasheet.

MAX1802 Application circuits
MAX1802 circuits
This is one application circuit of MAX1802,If you need more circuits,please download MAX1802's pdf datasheet.


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