# Server PDB Rev A

## Description

Prototype 180 mm × 56 mm server power distribution board with LM5069 hot\-swap control, switched 12 V distribution, active\-low motherboard enable, and a 6 A 3\.3 V buck rail\. Schematic checkpoint only; connector geometry and high\-current validation blockers remain documented\.

## Project Details

- **Owner:** aishuu
- **Created:** 9/30/2026
- **Last Updated:** 10/2/2026
- **Visibility:** Public

## Key Components

### CBOOT — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Voltage Rating: 25V
- Package: SMD\_0603\_1608Metric
- Capacitor Type: Ceramic
- Role Details: TPS56637 BOOT\-to\-SW capacitor
- Role: Bootstrapping
- Part Type: Non\-Polarized Capacitor
- Capacitance: 100nF
- Functional Group: POWER U2 3V3 Buck

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### CIN\_HF — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Capacitor Type: Ceramic
- Voltage Rating: 25V
- Functional Group: POWER U2 3V3 Buck
- Package: SMD\_0603\_1608Metric
- Role: Decoupling
- Role Details: Local high\-frequency TPS56637 VIN bypass
- Part Type: Non\-Polarized Capacitor
- Capacitance: 100nF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### CIN1 — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Voltage Rating: 25V
- Package: SMD\_1210\_3225Metric
- Manufacturer Part Number: GRM32ER71E226KE15L
- Role Details: Buck input MLCC 1; 1210 requested
- Functional Group: POWER U2 3V3 Buck
- Role: Bulk
- Part Type: Non\-Polarized Capacitor
- Capacitance: 22uF
- Capacitor Type: Ceramic

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### CIN2 — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Capacitor Type: Ceramic
- Voltage Rating: 25V
- Package: SMD\_1210\_3225Metric
- Manufacturer Part Number: GRM32ER71E226KE15L
- Functional Group: POWER U2 3V3 Buck
- Role Details: Buck input MLCC 2; 1210 requested
- Role: Bulk
- Part Type: Non\-Polarized Capacitor
- Capacitance: 22uF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### COUT1 — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Role: Bulk
- Voltage Rating: 10V
- Package: SMD\_1210\_3225Metric
- Manufacturer Part Number: GRM32ER71A226KE20L
- Capacitor Type: Ceramic
- Functional Group: POWER U2 3V3 Buck
- Role Details: 3V3 output MLCC 1; 1210 requested
- Part Type: Non\-Polarized Capacitor
- Capacitance: 22uF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### COUT2 — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Role Details: 3V3 output MLCC 2; 1210 requested
- Capacitor Type: Ceramic
- Voltage Rating: 10V
- Role: Bulk
- Functional Group: POWER U2 3V3 Buck
- Package: SMD\_1210\_3225Metric
- Manufacturer Part Number: GRM32ER71A226KE20L
- Part Type: Non\-Polarized Capacitor
- Capacitance: 22uF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### COUT3 — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Capacitor Type: Ceramic
- Role: Bulk
- Voltage Rating: 10V
- Package: SMD\_1210\_3225Metric
- Manufacturer Part Number: GRM32ER71A226KE20L
- Role Details: 3V3 output MLCC 3; 1210 requested
- Functional Group: POWER U2 3V3 Buck
- Part Type: Non\-Polarized Capacitor
- Capacitance: 22uF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### CTIMER — [Generic Capacitor](https://flux.ai/jharwinbarrozo/generic-capacitor~1d.md)

- Voltage Rating: 25V
- Role: Timing
- Package: SMD\_0603\_1608Metric
- Role Details: LM5069 fault timer and retry timing capacitor
- Functional Group: PROTECT U1 Hot Swap
- Capacitor Type: Ceramic
- Part Type: Non\-Polarized Capacitor
- Capacitance: 150nF

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J2 — [B24B\-PHDSS\-B\(LF\)\(SN\)](https://flux.ai/lcsc/b24b-phdss-blfsn~1ybm.md)

- Functional Group: IO J2 Motherboard
- Part Type: Wire To Board / Wire To Wire Connector
- Role Details: Rev A motherboard power and active\-low enable interface
- JLCPCB Part Class: Extended Part
- Manufacturer Name: JST
- LCSC Part Number: C160327
- Role: Motherboard Interface
- Product Info Url: https://lcsc\.com/product\-detail/\_JST\_B24B\-PHDSS\-B\-LF\-SN\_B24B\-PHDSS\-B\-LF\-SN\_C160327\.html
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B24B\-PHDSS\-B\-LF\-SN\_C160327\.pdf
- Package or Case Code: CONN\-TH\_24P\-P2\.00\_B24B\-PHDSS\-B\-LF\-SN
- Manufacturer Part Number: B24B\-PHDSS\-B\(LF\)\(SN\)

**Pins:**
- 1 [pin 1]
- 10 [pin 10]
- 11 [pin 11]
- 12 [pin 12]
- 13 [pin 13]
- 14 [pin 14]
- 15 [pin 15]
- 16 [pin 16]
- 17 [pin 17]
- 18 [pin 18]
- 19 [pin 19]
- 2 [pin 2]
- 20 [pin 20]
- 21 [pin 21]
- 22 [pin 22]
- 23 [pin 23]
- 24 [pin 24]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
- 9 [pin 9]

### J4 — [430450427](https://flux.ai/lcsc/430450427~e5m9.md)

- Product Info Url: https://lcsc\.com/product\-detail/PCB\-Connectors\-Headers\-Receptacles\-Female\-Sockets\_MOLEX\-430450427\_C293536\.html
- LCSC Part Number: C293536
- Datasheet URL: https://lcsc\.com/product\-detail/PCB\-Connectors\-Headers\-Receptacles\-Female\-Sockets\_MOLEX\-430450427\_C293536\.html
- Role Details: Two SW\_12V and two GND contacts; terminal numbering follows verified symbol/drawing
- Manufacturer Part Number: 430450427
- Functional Group: IO J4 4\-Pin Power
- Package or Case Code: CONN\-TH\_430450427
- Manufacturer Name: MOLEX
- Role: Peripheral Power
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 43]

### J5 — [430450627](https://flux.ai/lcsc/430450627~xdsr.md)

- Package or Case Code: CONN\-TH\_430450627
- LCSC Part Number: C293538
- Product Info Url: https://lcsc\.com/product\-detail/PCB\-Connectors\-Headers\-Receptacles\-Female\-Sockets\_MOLEX\-430450627\_C293538\.html
- Role: Riser Power
- Functional Group: IO J5 Riser Power
- Role Details: Nonstandard 3V3\_A/3V3\_B/GND and SW\_12V/GND/SW\_12V row mapping
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://assets\.lcsc\.com/datasheet/szlcsc/Download\-ISO9001\-Certification\.pdf
- JLCPCB Part Class: Extended Part
- Manufacturer Name: MOLEX
- Manufacturer Part Number: 430450627

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]

### J6 — [0039281083](https://flux.ai/jecstronic/0039281083~aes.md)

- Manufacturer Part Number: 0039281083
- Role Details: Logical standard power/ground cavities; cable orientation remains fabrication blocker
- Functional Group: IO J6 PCIe Power
- Role: PCIe Auxiliary Power
- Part Type: Connector
- Manufacturer Name: Molex
- Datasheet URL: https://tools\.molex\.com/pdm\_docs/sd/039281083\_sd\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]

### Q1 — [PSMN2R2\-100SSEJ](https://flux.ai/silicon-yard/psmn2r2-100ssej.md)

- Datasheet URL: https://assets\.nexperia\.com/documents/data\-sheet/PSMN2R2\-100SSE\.pdf
- Functional Group: PROTECT U1 Hot Swap
- Manufacturer Part Number: PSMN2R2\-100SSEJ
- Role Details: Parallel hot\-swap MOSFET 1; SOA and sharing validation required
- Symbol Style: parametric\-v1
- Part Type: Transistors
- Manufacturer Name: Nexperia
- Role: Switching

**Pins:**
- D\_1 [pin 5]
- D\_2 [pin 6]
- G [pin 1]
- S\_1 [pin 2]
- S\_2 [pin 3]
- S\_3 [pin 4]

### Q2 — [PSMN2R2\-100SSEJ](https://flux.ai/silicon-yard/psmn2r2-100ssej.md)

- Datasheet URL: https://assets\.nexperia\.com/documents/data\-sheet/PSMN2R2\-100SSE\.pdf
- Role: Switching
- Manufacturer Part Number: PSMN2R2\-100SSEJ
- Symbol Style: parametric\-v1
- Part Type: Transistors
- Functional Group: PROTECT U1 Hot Swap
- Role Details: Parallel hot\-swap MOSFET 2; SOA and sharing validation required
- Manufacturer Name: Nexperia

**Pins:**
- D\_1 [pin 5]
- D\_2 [pin 6]
- G [pin 1]
- S\_1 [pin 2]
- S\_2 [pin 3]
- S\_3 [pin 4]

### Q3 — [PSMN2R2\-100SSEJ](https://flux.ai/silicon-yard/psmn2r2-100ssej.md)

- Datasheet URL: https://assets\.nexperia\.com/documents/data\-sheet/PSMN2R2\-100SSE\.pdf
- Functional Group: PROTECT U1 Hot Swap
- Manufacturer Part Number: PSMN2R2\-100SSEJ
- Role Details: Parallel hot\-swap MOSFET 3; SOA and sharing validation required
- Symbol Style: parametric\-v1
- Part Type: Transistors
- Role: Switching
- Manufacturer Name: Nexperia

**Pins:**
- D\_1 [pin 5]
- D\_2 [pin 6]
- G [pin 1]
- S\_1 [pin 2]
- S\_2 [pin 3]
- S\_3 [pin 4]

### QEN1 — [MMBT3904LT1G](https://flux.ai/openpartlist/mmbt3904lt1g~s5.md)

- Manufacturer Part Number: MMBT3904LT1G
- Datasheet URL: https://www\.onsemi\.com/pdf/datasheet/mmbt3904lt1\-d\.pdf
- Manufacturer Name: onsemi
- Part Type: Transistor
- Role: Clamping
- Functional Group: PROTECT U1 Hot Swap
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Pulls LM5069 UVLO low when PDB\_ENABLE\_L is high/open

**Pins:**
- B [pin 1]
- C [pin 3]
- E [pin 2]

### RB\_EN — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role: Current Limiting
- Role Details: PDB\_ENABLE\_L to QEN1 base
- Resistance: 330kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RBE\_EN — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Pull Up / Down
- Functional Group: PROTECT U1 Hot Swap
- Resistance: 1MΩ
- Package: SMD\_0603\_1608Metric
- Role Details: QEN1 base\-emitter discharge and off\-state bias

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### REN\_BOT — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role Details: EN\-to\-GND lower divider resistor
- Functional Group: POWER U2 3V3 Buck
- Tolerance: 1%
- Resistance: 22kΩ
- Package: SMD\_0603\_1608Metric
- Role: Voltage Division

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### REN\_DN — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role Details: Ground pull\-down creating approximately 6 V open enable state
- Role: Biasing
- Resistance: 47kΩ
- Package: SMD\_0603\_1608Metric
- Functional Group: PROTECT U1 Hot Swap

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### REN\_TOP — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Voltage Division
- Functional Group: POWER U2 3V3 Buck
- Tolerance: 1%
- Role Details: SW\_12V\-to\-EN upper divider resistor
- Resistance: 100kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### REN\_UP — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role: Biasing
- Role Details: RAW\_12V pull\-up creating approximately 6 V open enable state
- Resistance: 47kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RFB\_BOT — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: POWER U2 3V3 Buck
- Role Details: FB\-to\-GND bottom resistor
- Role: Feedback
- Tolerance: 1%
- Resistance: 10\.0kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RFB\_TOP — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Feedback
- Functional Group: POWER U2 3V3 Buck
- Tolerance: 1%
- Resistance: 45\.3kΩ
- Package: SMD\_0603\_1608Metric
- Role Details: 3V3\-to\-FB top resistor; target approximately 3\.32 V

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RG1 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role Details: Individual Q1 gate resistor
- Functional Group: PROTECT U1 Hot Swap
- Resistance: 22Ω
- Package: SMD\_0805\_2012Metric
- Role: Snubber / Damping

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RG2 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role Details: Individual Q2 gate resistor
- Functional Group: PROTECT U1 Hot Swap
- Resistance: 22Ω
- Package: SMD\_0805\_2012Metric
- Role: Snubber / Damping

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RG3 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role Details: Individual Q3 gate resistor
- Role: Snubber / Damping
- Resistance: 22Ω
- Package: SMD\_0805\_2012Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RLA — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role Details: Independent 2512 link from 3V3 to 3V3\_A
- Functional Group: POWER U2 3V3 Buck
- Role: Isolation
- Resistance: 0Ω
- Package: SMD\_2512\_6332Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RLB — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Isolation
- Functional Group: POWER U2 3V3 Buck
- Role Details: Independent 2512 link from 3V3 to 3V3\_B
- Resistance: 0Ω
- Package: SMD\_2512\_6332Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### ROV1 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Voltage Division
- Functional Group: PROTECT U1 Hot Swap
- Tolerance: 1%
- Resistance: 56\.2kΩ
- Role Details: LM5069 OVLO top resistor from RAW\_12V
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### ROV2 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role: Voltage Division
- Role Details: LM5069 OVLO bottom resistor to GND
- Tolerance: 1%
- Resistance: 10\.0kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RPWR — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role Details: LM5069 PWR programming resistor; provisional pending SOA/inrush validation
- Tolerance: 1%
- Resistance: 15\.8kΩ
- Package: SMD\_0603\_1608Metric
- Role: Current Limiting

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RS1 — [WSLP2726L5000FEA](https://flux.ai/lcsc/wslp2726l5000fea~djv1.md)

- JLCPCB Part Class: Extended Part
- Part Type: Current Sense Resistors/Shunt Resistors
- Functional Group: PROTECT U1 Hot Swap
- Role Details: Four\-terminal Kelvin shunt; 42 mV and 2\.52 W at provisional 60 A
- Resistance: 0\.0007Ω
- Tolerance: 1%
- Manufacturer Part Number: WSLP2726L7000FEA
- Manufacturer Name: VISHAY\(威世\)
- Role: Sensing \(Shunt\)
- Power Rating: 7W
- LCSC Part Number: C844297
- Package or Case Code: RES\-SMD\_4P\-L6\.9\-W6\.6\_WSLP2726L5000FEA

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### RUV1 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Role: Voltage Division
- Functional Group: PROTECT U1 Hot Swap
- Role Details: LM5069 UVLO top resistor from RAW\_12V
- Tolerance: 1%
- Resistance: 30\.1kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### RUV2 — [Generic Resistor](https://flux.ai/jharwinbarrozo/generic-resistor~3e.md)

- Part Type: Resistor
- Functional Group: PROTECT U1 Hot Swap
- Role: Voltage Division
- Role Details: LM5069 UVLO bottom resistor to GND
- Tolerance: 1%
- Resistance: 10\.0kΩ
- Package: SMD\_0603\_1608Metric

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### TP\_3V3 — [5019](https://flux.ai/adrian95/5019~fxh.md)

- Manufacturer Name: Keystone Electronics
- Role: Test Point
- License: https://creativecommons\.org/licenses/by/4\.0/
- Package or Case Code: 5019
- Manufacturer Part Number: 5019
- Functional Group: POWER U2 3V3 Buck
- Datasheet URL: https://www\.keyelco\.com/product\-pdf\.cfm?p=1357
- Part Type: Test Point
- Role Details: Accessible 3V3 probe point

**Pins:**
- 1 [pin 1]

### TP\_EN — [5019](https://flux.ai/adrian95/5019~fxh.md)

- Role Details: Accessible PDB\_ENABLE\_L probe point
- Manufacturer Name: Keystone Electronics
- Functional Group: IO J2 Motherboard
- License: https://creativecommons\.org/licenses/by/4\.0/
- Package or Case Code: 5019
- Manufacturer Part Number: 5019
- Role: Test Point
- Datasheet URL: https://www\.keyelco\.com/product\-pdf\.cfm?p=1357
- Part Type: Test Point

**Pins:**
- 1 [pin 1]

### TP\_RAW — [5019](https://flux.ai/adrian95/5019~fxh.md)

- Manufacturer Name: Keystone Electronics
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Accessible RAW\_12V probe point
- Functional Group: IO J1 PSU Input
- Role: Test Point
- Package or Case Code: 5019
- Manufacturer Part Number: 5019
- Datasheet URL: https://www\.keyelco\.com/product\-pdf\.cfm?p=1357
- Part Type: Test Point

**Pins:**
- 1 [pin 1]

### TP\_SW12 — [5019](https://flux.ai/adrian95/5019~fxh.md)

- Manufacturer Name: Keystone Electronics
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Accessible SW\_12V probe point
- Functional Group: PROTECT U1 Hot Swap
- Package or Case Code: 5019
- Role: Test Point
- Manufacturer Part Number: 5019
- Datasheet URL: https://www\.keyelco\.com/product\-pdf\.cfm?p=1357
- Part Type: Test Point

**Pins:**
- 1 [pin 1]

### U1 — [LM5069MM\-2/NOPB](https://flux.ai/adrian95/lm5069mm-2nopb~rzr.md)

- Part Type: Integrated Circuit
- Role Details: Controls 60 A provisional switched 12 V path; current\-limit estimate 78\.6 A
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: LM5069MM\-2/NOPB
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Protection
- Package or Case Code: SOP50P490X110\-10N
- Datasheet URL: http://www\.ti\.com/lit/gpn/lm5069
- Functional Group: PROTECT U1 Hot Swap

**Pins:**
- GATE [pin 10]
- GND [pin 5]
- OUT [pin 9]
- OVLO [pin 4]
- PGD [pin 8]
- PWR [pin 7]
- SENSE [pin 1]
- TIMER [pin 6]
- UVLO [pin 3]
- VIN [pin 2]

### U2 — [TPS56637RPAR](https://flux.ai/lcsc/tps56637rpar~022f.md)

- JLCPCB Part Class: Extended Part
- LCSC Part Number: C841386
- Functional Group: POWER U2 3V3 Buck
- Part Type: DC\-DC Converters
- Manufacturer Name: TI\(德州仪器\)
- Role: Power Conversion
- Role Details: Converts SW\_12V to provisional 3V3 rail, up to 6 A capability
- Manufacturer Part Number: TPS56637RPAR
- Package or Case Code: VQFN\-HR\-10\_L3\.0\-W3\.0\_RPA

**Pins:**
- AGND [pin 3]
- BOOT [pin 7]
- EN [pin 1]
- FB [pin 2]
- MODE [pin 10]
- NC [pin 5]
- PG [pin 4]
- PGND [pin 9]
- SW [pin 6]
- VIN [pin 8]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/aishuu/server\-pdb\-rev\-a\~vz](https://flux.ai/aishuu/server-pdb-rev-a~vz).*

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*Generated from [https://flux\.ai/aishuu/server\-pdb\-rev\-a\~vz](https://flux.ai/aishuu/server-pdb-rev-a~vz)*