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reference design MCP16701/A | Demoboard EV69K72A

Microchip MCP16701/A | Demoboard EV69K72A

PCI1003 PMIC Power Subsystem

Overview

TopologyBuck Converter
Input voltage12-13 V
Switching frequency2200-2330 kHz
Output 13.8 V / 1.5 A
IC revision1

Description

The MCP16701A is a Power Management Integrated Circuit (PMIC) designed for the PCI100x Switchtech family, operating with an input voltage range of 2.7V to 5.5V. For this application, it has been pre-configured to provide the 3.3V (1.5A), 1.8V (3A) and 2x 0.8125V (1x 4.5A and 1x 3A) rails needed by the PCI1003 Switch. To expand the input voltage, the MCP16701A is supplied by the MCP16363 Buck (configured to deliver 5V (3A)).The PCI1003 PMIC Power Board includes reverse battery protection, overvoltage and overcurrent protection.

Features

Input voltage range: 12V typ. (13V max.)High Accuracy Output voltages:VDDAUX: 3.3V, 1.5AVDDIO: 1.8V, 3AVDDP_0V8: 0.8125V, 3AVDD_0V8: 0.8125V, 4.5AVDD5V_PMIC: 5V , 3A (intermediate rail)Sequenced rails startup to ensure proper power up of the PCI1003 Switch2.33MHz Switching Frequency Forced PWM Mode for low-ripple output rail, for the MCP16701A PMIC rails2.2MHz Switching Frequency for the MCP16363 rail with dithering for improved EMIFault Management through the nRSTO and nINTO pins with LED indicatorsThermal protection for both power devicesOvercurrent protection for both power devices

Typical applications

  • PCI100x PCIe Gen4x16 Switch

More information

Parts approved by Microchip

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
L(µH)
IR(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
SamplesAvailability & Sample
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150060SS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 630 nm, Super Red
Simu­lation
Availability
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Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]630 nm
Emitting ColorSuper Red 
Peak Wavelength [typ.]645 nm
Luminous Intensity [typ.]60 mcd
Forward Voltage [typ.]1.9 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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78404054022
SPECWE-LQSA SMD Semi-Shielded Power Inductor, –, –
Simu­lation–
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LQSA SMD Semi-Shielded Power Inductor
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Inductance2.2 µH
Rated Current4.54 A
Saturation Current5.3 A
DC Resistance23 mΩ
Self Resonant Frequency77 MHz
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Additional parts recommended by Würth Elektronik

Recommended parts are Würth Elektronik alternatives that are not formally approved for this reference design. Please verify it is suitable for your application, and contact us if you have any questions.

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438357010
SPECWE-MAPI SMT Power Inductor, 1 µH, 10.25 A
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1 µH
Performance Rated Current10.25 A
Saturation Current @ 30%12.5 A
DC Resistance11.6 mΩ
Self Resonant Frequency59 MHz
Operating Voltage80 V
MountSMT 
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