Product category:
Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX1565
Edited by the Electronicstalk Editorial
Team on 18 February 2003
Five-channel chip has all the supplies
for cameras
The MAX1565 is heralded as the smallest and highest efficiency power supply solution for digital still cameras and video cameras.
The MAX1565 is heralded as the smallest and highest efficiency power supply solution for digital still cameras and video cameras The MAX1565 integrates high-efficiency step-up and step-down DC/DC convertors with three step-up controllers, providing a five-channel power management IC
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
Related stories
Speedy DAC claims dynamic superiority for comms
The MAX5195 is a 14bit 260Msample/s DAC claimed to provide the world's best dynamic performance in spurious-free dynamic range, intermodulation distortion and signal to noise ratio.
Low-power serial ADC runs up to 200Ksample/s
New from Maxim Integrated Products, the MAX1162 serial-interface 16bit A/D convertor connects directly to SPI, QSPI and Microwire devices without additional interface logic.
The MAX1565 provides all voltage outputs required in most digital camera designs.
The internal switch step-up and step-down DC/DC convertors include synchronous rectifiers to give 95% efficient conversion for the logic and core supplies (which use over 60% of the camera's power).
They provide complete power for the 3.3V logic, and 1.5 or 1.8V core supply.
The three step-up controllers supply power for a white LED (W-LED) or CCFL backlight module, positive and negative CCD biases, motor drivers, and positive and negative LCD biases.
All supplies have independent on/off control.
The MAX1565's 5 x 5mm thin QFN package is 70% smaller than existing solutions using all controllers.
This device also eliminates 27 external components such as diodes, external power switches, resistors and capacitors, and saves 63% board space.
The DC/DC convertor's switching frequency is adjustable up to 1MHz, permitting optimum size, cost, and efficiency.
The input voltage range is 0.7 to 5.5V, and it is intended for single-cell, lithium-ion (Li+), and two- or three-cell alkaline battery inputs.
If more voltages are required in the system, the MAX1565 can be expanded with minimal cost.
It supplies power, an oscillator signal, and a reference to one or more MAX1801 slave controllers.
The MAX1801 is a low-cost SOT, low-side DC/DC controller for step-up, SEPIC, and fly-back configurations for accessories such as motor drives for zooming and focusing.
Up to five slave controllers can be added.
The MAX1565 is screened for the extended-industrial temperature range (-40 to +85C).
The MAX1565ETJ price starts at $2.60 (1000-up, FOB USA).
An evaluation kit is available to speed designs.
• Maxim Integrated Products: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
