Summer of FPGAs: MAX77714 Multichannel PMIC EVM

Table of contents

RoadTest: Summer of FPGAs: MAX77714 Multichannel PMIC EVM

Author: vinayyn

Creation date:

Evaluation Type: Evaluation Boards

Did you receive all parts the manufacturer stated would be included in the package?: True

What other parts do you consider comparable to this product?: I Never come across these kinds of PMIC Evaluation kits yet.

What were the biggest problems encountered?: Finding The Design Documents, Reference Silkscreen Mis-alignments In the EV Kit

Detailed Review:

When The world needs smart gadgets the size of the device needs to be minimized as much as possible without compromising the performance. When minimizing the size of the power management for the smart gadgets a lot of performance drawbacks will create based on the application of the smart gadget. From my experience, the MAX77714 gives the best solution for smart gadget power management designs.

MAX77714 EV KIT

Below are features of the MAX77714 that helps to create Power management more effectively in small space.

  • The Regulators have an efficiency of > 90%.
  • 9x Low-Drop Linear Regulators.
  • Real-Time Clock
  • I2c Compatible Interface.
  • Low- Power quiescent current Buck Converter.
  • Small design Package.

                Detailed Review On LDO of MAX77714EV KIT

 

There are two Different types of Regulator are available in the MAX77714

  1. NMOS Regulators
  2. PMOS Regulators

                                            NMOS Regulator LDO

Features

  • 0.8V to 5.5V Input Range
  • 29mA Quiescent Supply Current

 

Output Current

LDO Names

150mA

LDO0, LDO1

450mA

LDO7

300mA

LDO8

PMOS Regulator LDO

 

Features

 

  • 7V to 5.5V Input Range
  • 20mA Quiescent Supply Current

 

Output Current

LDO Names

150mA

LDO2,LDO4,LDO5,LDO6

300mA

LD03

LDO Target Output Voltages of MAX77714 EV kit

 

LDO Name

Min Output Voltage

Max Output Voltage

LDO0

0.8V

2.375V

LDO1

0.8V

2.375V

LDO2

0.8V

3.95V

LDO3

0.8V

3.95V

LDO4

0.4V

1.275V

LDO5

0.8V

3.95V

LDO6

0.8V

3.95V

LDO7

0.8V

3.95V

LDO8

0.8V

3.95V

LDO Testing Images

LDO 0 Voltage Level Testing and Noise Analyzing using DSO

LDO 0 Testing Images

LDO 0 Voltage Level Testing and Noise Analyzing using DSO

LDO 0 Maximum Voltage Level Testing and Noise Analyzing using DSO

LDO 0 max Voltage Level Testing and Noise Analyzing using DSO

LDO 0 max Voltage Level Testing and Noise Analyzing using DSO

LDO 0 max Voltage Level Testing and Noise Analyzing using DSO

LDO - 4 Minimum Output Voltage Testing

LDO - 4 Minimum Output Voltage Testing

LDO - 4 Minimum Output Voltage Testing

                   StepDown Regulators(SD)

Stepdown Regulators Output Voltages Of MAX77714 EV Kit

 

SD Name

Min O/P Voltage

Max O/P Voltage

Max O/P Current

SD0

0.26V

1.52V

4A

SD1

0.26V

1.52V

3A

SD2

0.62V

2.193V

2A

SD3

0.62V

3.787V

2A

Stepdown Regulator – 0 (SD0)

Features

  • Programmable output voltage from 0.26V to 1.52V in 10mV steps.
  • ±2% Initial output accuracy.
  • Capable of 4A continuous output current.

SD0 Maximum Output Voltage Testing

SD0 Maximum Output Voltage Testing

SD0 Maximum Output Voltage Testing

Stepdown Regulator – 1 (SD1)

Features

  • Programmable output voltage from 0.26V to 1.52V in 10mV steps.
  • ±2% Initial output accuracy.
  • Capable of 3A continuous output current.

 

Stepdown Regulator – 2 (SD2 )

Features

  • Programmable output voltage from 0.600V to 2.194V in 6.25mV steps for SD2.
  • ±2% Initial output accuracy.
  • Capable of 2A continuous output current

Stepdown Regulator – 3  (SD3)

  • Programmable output voltage from 0.600V to 3.78V in 12.5mV steps for SD3.
  • ±2% Initial output accuracy.
  • Capable of 2A continuous output current

 SD3 Maximum Output Voltage Testing

SD3 Maximum Output Voltage Testing

Test Point VIL_SD3 PWM OUTPUT WAVEFORM (SD3 Buck Converter PWM INPUT)

VIL_SD3 PWM OUTPUT WAVEFORM

Test Point VIL_SD3 PWM OUTPUT WAVEFORM (SD3 Buck Converter PWM INPUT)

Test Point VIL_SD3 PWM OUTPUT WAVEFORM (SD3 Buck Converter PWM INPUT)

Datasheets and Design Files Link

https://www.maximintegrated.com/en/products/power/switching-regulators/MAX77714EVKIT.html

https://www.maximintegrated.com/en/products/power/power-management-ics/MAX77714.html

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