MAX1567

Obsolete

Six-Channel, High-Efficiency, Digital Camera Power Supplies

Six-Channel, High-Efficiency, Digital Camera Power Supplies Improve Performance, Component Count, and Size Compared to Conventional Multichannel Controllers in 2-Cell AA, 1-Cell Li+, and Dual-Battery Designs

Data Sheet (Rev. 1)
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Part Details

  • 95% Efficient Step-Up DC-to-DC Converter
  • 0.7V Minimum Input Voltage
  • Main DC-to-DC Configurable as Either Step-Up or Step-Down
  • Combine Step-Up and Step-Down for 90% Efficient Boost-Buck
  • 95% Efficient Step-Down for DSP Core
  • Regulate LED Current for Four, Six, or More LEDs
  • Open LED Overvoltage Protection
  • Transformerless Inverting Controller (MAX1567)
  • Three Extra PWM Controllers (Two on the MAX1567)
  • Up to 1MHz Operating Frequency
  • 1µA Shutdown Mode
  • Soft-Start and Overload Protection
  • Compact 40-Pin 6mm x 6mm Thin QFN Package
MAX1567
Six-Channel, High-Efficiency, Digital Camera Power Supplies
MAX1566, MAX1567: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

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Hardware Ecosystem

Parts Product Life Cycle Description
LCD/CCD/OLED Bias 1
MAX1585
PRODUCTION 5-Channel Slim DSC Power Supplies
Multitopology DC/DC 1
MAX1565
PRODUCTION Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply
Product 3
MAX1584
5-Channel Slim DSC Power Supplies
MAX1800
Digital Camera Step-Up Power Supply
MAX1802
Digital Camera Step-Down Power Supply
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Evaluation Kits

MAX1567SUMEVKIT

Step-Up Main Evaluation Kit for the MAX1566, MAX1567

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Features and Benefits

  • Up to 95% Efficient
  • 1.5V to 3.2V Input Voltage Range
  • Main Step-Up Output, 3.3V
  • Step-Down Output, 1.8V
  • 5V General-Purpose Output
  • CCD and LCD Bias Outputs (+15V/-7.5V)
  • Current-Regulated Output with Overvoltage Protection for White LED Backlighting
  • 1µA Shutdown Mode
  • Fully Assembled and Tested

Product Details

The MAX1567 step-up main evaluation kit (EV kit) is a fully assembled and tested circuit that accepts input voltages of 1.5V to 3.2V and provides all the output voltages required for a typical digital still camera. The outputs consist of the main step-up output (3.3V), a stepdown output (1.8V), a general-purpose 5V output, outputs for driving white LED backlighting, and outputs for charge-coupled device (CCD) and LCD bias. The EV kit comes with the MAX1567 installed, but can also be used to evaluate the MAX1566. For applications with a higher battery voltage, such as Li+ battery applications, another version of the EV kit is available with the main output configured as a step-down converter (MAX1567EVKIT).

Applications

  • Digital Cameras
  • PDAs

MAX1567EVKIT

MAX1567 Evaluation Kit

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Features and Benefits

  • Up to 95% Efficient
  • 2.8V to 4.2V Input-Voltage Range
  • Main Step-Down Output, 3.3V
  • Step-Down Output, 1.8V
  • 5V General-Purpose Output
  • CCD and LCD Bias Outputs (+15V/-7.5V)
  • Current-Regulated Output with Overvoltage Protection for White LED Backlighting
  • 1µA Shutdown Mode
  • Fully Assembled and Tested

Product Details

The MAX1567 evaluation kit (EV kit) is a fully assembled and tested printed-circuit board (PCB) that accepts 2.8V to 4.2V input voltages and provides all the output voltages required for a typical digital still camera. The outputs consist of the main step-down output (3.3V), a step-down output (1.8V), a general-purpose 5V output, outputs for driving white LED backlighting, and outputs for charge-coupled device (CCD) and LCD bias. The EV kit comes with the MAX1567 installed, but can also be used to evaluate the MAX1566. For applications with a lower battery voltage, such as 2-AA battery applications, another version of the EV kit is available with the main output configured as a step-up converter (MAX1567SUMEVKIT).

Applications

  • Digital Cameras
  • PDAs
MAX1567SUMEVKIT
Step-Up Main Evaluation Kit for the MAX1566, MAX1567
MAX1567EVKIT
MAX1567 Evaluation Kit

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