MAX765
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MAX765

-5V/-12V/-15V or Adjustable, High-Efficiency, Low-IQ DC-DC Inverters

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Internal Power MOSFET Reduces Component Count and Saves Space

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 6
1ku List Price Starting From $3.82
Features
  • High Efficiency for a Wide Range of Load Currents
  • 250mA Output Current
  • 120µA Max Supply Current
  • 5µA Max Shutdown Current
  • 3V to 16V Input Voltage Range
  • -5V (MAX764), -12V (MAX765), -15V (MAX766), or Adjustable Output from -1V to -16V
  • Current-Limited PFM Control Scheme
  • 300kHz Switching Frequency
  • Internal, P-Channel Power MOSFET
Additional Details
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The MAX764/MAX765/MAX766 inverting switching regulators are highly efficient over a wide range of load currents, delivering up to 1.5W. A unique, current-limited, pulse-frequency-modulated (PFM) control scheme combines the benefits of traditional PFM converters with the benefits of pulse-width-modulated (PWM) converters. Like PWM converters, the MAX764/MAX765/MAX766 are highly efficient at heavy loads. Yet because they are PFM devices, they use less than 120µA of supply current (vs. 2mA to 10mA for a PWM device).

The input voltage range is 3V to 16V. The output voltage is preset at -5V (MAX764), -12V (MAX765), or -15V (MAX766); it can also be adjusted from -1V to -16V using two external resistors (Dual Mode™). The maximum operating VIN - VOUT differential is 20V.

These devices use miniature external components; their high switching frequencies (up to 300kHz) allow for less than 5mm diameter surface-mount magnetics. A standard 47µH inductor is ideal for most applications, so no magnetics design is necessary.

An internal power MOSFET makes the MAX764/MAX765/ MAX766 ideal for minimum component count, low- and medium-power applications. For increased output drive capability or higher output voltages, use the MAX774/MAX775/MAX776 or MAX1774, which drive an external power P-channel MOSFET for loads up to 5W.

Applications

  • Battery-Powered Applications
  • LAN Adapters
  • LCD Bias Generators
  • Portable Instrumentation
  • Remote Data-Acquisition Systems
Part Models 6
1ku List Price Starting From $3.82

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX765CPA+
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MAX765CSA+
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MAX765CSA+T
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MAX765EPA+
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MAX765ESA+
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MAX765ESA+T
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Part Models

Product Lifecycle

PCN

Oct 30, 2020

- 1702R2

ASSEMBLY

MAX765CSA+

PRODUCTION

MAX765CSA+T

PRODUCTION

MAX765ESA+

PRODUCTION

MAX765ESA+T

PRODUCTION

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Oct 30, 2020

- 1702R2

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ASSEMBLY

MAX765CSA+

PRODUCTION

MAX765CSA+T

PRODUCTION

MAX765ESA+

PRODUCTION

MAX765ESA+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX764EVKIT

Evaluation Kit for the MAX764, MAX765, MAX766

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MAX764EVKIT

Evaluation Kit for the MAX764, MAX765, MAX766

Evaluation Kit for the MAX764, MAX765, MAX766

Features and Benefits

  • -5V or Adjustable Output Voltage
  • Up to 250mA Output Current
  • 120µA Max Supply Current
  • 5µA Max Shutdown Current
  • 300kHz Switching Frequency
  • Internal Power MOSFET
  • 8-Pin SO Package
  • Surface-Mount Construction
  • Fully-Assembled and Tested

Product Detail

The MAX764 evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board that provides a regulated -5.0V output voltage from a 3V to 16V input voltage source. It drives loads up to 250mA with conversion efficiency greater than 82%.

The MAX764 EV kit can also be used to evaluate the MAX765CSA (-12V output) or MAX766 (-15V output). Additional pads are provided on the board's solder side to accommodate external feedback resistors for setting different output voltages.

Reference Designs

Reference Designs 1

MAXREFDES30

8-Channel Simultaneous-Sampling Analog Front End

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MAXREFDES30

8-Channel Simultaneous-Sampling Analog Front End

8-Channel Simultaneous-Sampling Analog Front End

Features and Benefits

  • High precision, 8-channel, simultaneous-sampling inputs
  • High-speed 250ksps sampling rate
  • High-accuracy 16-bit resolution
  • Device drivers
  • Example C source code
  • Configuration files for ZedBoard™ platform
  • FMC-compatible
View Detailed Reference Design external link

Design & Integration Tools

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