Part Metadata Review and Validation

Thought for 2 mins

Part review summary

I reviewed the part metadata, schematic symbol terminals, footprint, and the existing datasheet link. The datasheet URL is already set, so no web lookup/update was needed.

Existing part metadata

Table

Field	Current value	Datasheet cross-check	Status
Manufacturer Name	Microchip	Matches datasheet vendor	OK
Manufacturer Part Number	PD70201ILQ-TR	Matches ordering info	OK
Datasheet URL	PDF	Present and valid	OK
Designator Prefix	IC	Reasonable for this part	OK
Package or Case Code	R0201	Datasheet says QFN 5x5 Plastic, 32 pin	Mismatch

Key datasheet specs

Table

Item	Datasheet value
Function	IEEE 802.3af/at PoE PD interface + PWM controller
PoE capability	IEEE 802.3at Type 2 support; up to 47.7 W in 4-pair applications
Package	QFN 5 mm x 5 mm, 32 pins
Exposed pad	Present, electrically tied to VPN_IN
Ambient temperature	-40 C to 85 C
Input supply	VPP 0 V / 55 V / 57 V
DC-DC switching frequency	100 kHz to 500 kHz adjustable
Sync range	200 kHz to 1000 kHz
Isolating switch Rds(on)	0.6 ohm typ
Internal LDOs	VL = 5 V, VH = -5 V referenced to VCC

Symbol vs datasheet

Table

Check	Result	Notes
Pin count	Match	Symbol has 33 terminals total: 32 package pins + 1 exposed pad
Pin numbering	Match	Pins 1-32 align with datasheet numbering
Pin names	Match	All functional names align with PD70201 variant
Variant-specific pin 7	Match	Datasheet says pin 7 is AT_FLAG for PD70201
Exposed pad	Match	EP is present as pin 33, consistent with exposed pad handling

Footprint vs datasheet

Table

Check	Result	Notes
Footprint asset	Match	Footprint file name indicates QFN50P500X500X100-33N-D
Body size	Match	Encodes 5.00 mm x 5.00 mm x 1.00 mm, consistent with datasheet
Lead pitch	Match	Encodes 0.50 mm pitch, consistent with datasheet
Pad count	Match	33 pads total = 32 perimeter pads + exposed pad
3D model present	Yes	STEP model exists

Pin-by-pin cross-check

Table

Schematic terminal	Datasheet pin	Result
RDET	1	Match
PGOOD	2	Match
RREF	3	Match
RCLASS	4	Match
VPN_IN	5	Match
N/C_1	6	Match
AT_FLAG	7	Match
VPN_OUT	8	Match
N/C_2	9	Match
ENABLE	10	Match
VINS	11	Match
HYST	12	Match
SYNC	13	Match
RFREQ	14	Match
SS	15	Match
RCLP	16	Match
VSN	17	Match
VSP	18	Match
COMP	19	Match
DAO	20	Match
FB	21	Match
GND	22	Match
VL	23	Match
SG	24	Match
PGND	25	Match
CSN	26	Match
CSP	27	Match
PG	28	Match
VH	29	Match
VCC	30	Match
VAUX	31	Match
VPP	32	Match
EP	33 / exposed pad	Match

Issues flagged

Table

Severity	Finding	Details
Medium	Package property mismatch	Project property says R0201, but the datasheet and footprint clearly indicate QFN 5x5, 32-pin with exposed pad
Low	Pin type metadata incomplete	All symbol terminals currently show Pin Type: Unspecified
Low	Pin descriptions not stored in part metadata	The symbol names and numbering are correct, but I do not see explicit per-pin description properties populated in the part itself

Bottom line

MPN: correct
Datasheet URL: present and valid
Description: consistent with datasheet
Pin count: correct
Symbol pin names and numbering: correct
Footprint package and pad count: correct
Main mismatch: the part property Package or Case Code = R0201 is wrong for this device

If you want, I can next:

update the incorrect package property to the datasheet package naming, and/or
produce a clean pin-description table for all terminals based on the datasheet.

Fix package metadata

Add pin descriptions

Set pin types

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