PMP9767.2, Efficient, LDO-free Power Supply for a 12-bit 500-MSPS ADC Reference Design

Reference Design using part TPS62231DRY by Texas Instruments

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PMP9767 Image (Sheet 1 of 9)
PMP9767 Efficiency (Sheet 2 of 9)
PMP9767 Input Current Consumption (Sheet 3 of 9)
Power Supplies (Sheet 4 of 9)
ADC (Sheet 5 of 9)
I/F CONNECTOR (Sheet 6 of 9)
ANALOG IN (Sheet 7 of 9)
CLOCK IN (Sheet 8 of 9)
ADC PWR (Sheet 9 of 9)
Image 1 / 9

Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

Associated Documents

For End Products

  • Digital Multimeter
  • Portable
  • Test and Measurement

Description

  • PMP9767.2, Efficient, LDO-free Power Supply for a 12-bit 500-MSPS ADC Reference Design. The electrical performance of data converters depends on the cleanliness of their supply voltages. Linear regulators (LDOs) are commonly used but have low efficiency and high power loss, which is unsuitable for portable applications. Using a switch mode power supply (SMPS) instead, such as the TPS62231 and TPS62237, is a cost-effective and efficient power supply solution. Such a solution does not degrade the performance of the 12-bit ADS540x family of analog to digital converters (ADCs) and does not waste excessive power

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    4 to 6 V
  • Output Voltage
    1.8 V
  • Output Current
    0.5 A
  • Output Power
    0.9 W
  • Efficiency
    47 to 83 %
  • Topology
    Buck- Synchronous

Featured Parts (18)

Featured Parts
Part Number Manufacturer Type Description
ADS5402IZAY Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 800Msps 12-bit LVDS 196-Pin NFBGA Tray Buy
ADS5403IZAY Texas Instruments Analog to Digital Converters - ADCs 1-Channel Single ADC Pipelined 500Msps 12-bit LVDS 196-Pin NFBGA Tray Buy
ADS5403IZAYR Texas Instruments Analog to Digital Converters - ADCs 1-Channel Single ADC Pipelined 500Msps 12-bit LVDS 196-Pin NFBGA T/R Buy
ADS5404IZAY Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 500Msps 12-bit LVDS 196-Pin NFBGA Tray Buy
ADS5407IZAYR Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 500Msps 12-bit LVDS 196-Pin NFBGA T/R Buy
ADS5409IZAY Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 900Msps 12-bit LVDS 196-Pin NFBGA Tray Buy
TPS62237DRYT Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 2.05V to 6V Synchronous Step Down Single-Out 3.3V 0.5A 6-Pin USON T/R Buy
TPS79601DCQ Texas Instruments Linear Regulators LDO Regulator Pos 1.2V to 5.5V 1A 6-Pin(5+Tab) SOT-223 Tube Buy
ADS5401IZAYR Texas Instruments Analog to Digital Converters - ADCs 1-Channel Single ADC Pipelined 800Msps 12-bit LVDS 196-Pin NFBGA T/R Buy
ADS5407IZAY Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 500Msps 12-bit LVDS 196-Pin NFBGA Tray Buy
TPS62237DRYR Texas Instruments DC to DC Converter and Switching Regulator Chip Conv DC-DC 2.05V to 6V Synchronous Step Down Single-Out 3.3V 0.5A 6-Pin USON T/R Buy
ADS5409IZAYR Texas Instruments Analog to Digital Converters - ADCs 2-Channel Dual ADC Pipelined 900Msps 12-bit LVDS 196-Pin NFBGA T/R Buy
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