SNVU818 May   2022 TPS62901-Q1 , TPS62902-Q1 , TPS62903-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Performance Specification
    2. 1.2 Modifications
      1. 1.2.1 Input and Output Capacitors
      2. 1.2.2 Configurable Enable Threshold Voltage
      3. 1.2.3 SS/TR Capacitor
      4. 1.2.4 Feedforward Capacitor
      5. 1.2.5 MODE/S-CONF Resistor
      6. 1.2.6 Loop Response Measurement
  3. 2Setup
    1. 2.1 Input/Output Connector Descriptions
  4. 3Safety Instructions
  5. 4Test Results
  6. 5 Board Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials

6.2 Bill of Materials

Table 6-1 lists the BOM for this EVM.

Table 6-1 TPS6290x-Q1EVM Bill of Materials
-001 -002 -003 Reference Designator Value Description Package Part Number Manufacturer
1 1 1 C1 10 µF CAP, CERM, 10 µF, 25 V, ±10%, X8R 1210

CGA6P1X8R1E106K250AE

 TDK
1 1 1 C2 22 µF CAP, CERM, 22 µF, 16 V, ±20%, X8L

1210

CGA6P1X8L1C226M250AC

 TDK
1 1 1 C3 3300 pF CAP, CERM, 3300 pF, 50 V, ±20%, X8R 0603

CGA3E2X8R1H332M080AA

TDK
1 1 1 C4 47 µF CAP, TA, 47 µF, 35 V, ±10%, 0.5 Ω

2917

T498X476K035ATE500

 Kemet
0 0 1 L1 1 µH Inductor Power Shielded Wirewound 1-µH, 20% Composite, 8.8-A, 8.2-mΩ DCR 4 mm × 4 mm XGL4020-102MEC Coilcraft
1 1 0 L1 2.2 µH Inductor Power Shielded Wirewound 2.2-µH, 20% Composite, 6.2-A, 19.5-mΩ DCR 4 mm × 4 mm XGL4020-222MEC Coilcraft
1 0 0 R1 453 kΩ RES, 453 kΩ, 1%, 0.1 W 0603 Std Std
0 1 0 R1 200 kΩ RES, 200 kΩ, 1%, 0.1 W 0603 Std Std
0 0 1 R1 100 kΩ RES, 100 kΩ, 1%, 0.1 W 0603 Std Std
2 2 2 R2, R3 100 kΩ RES, 100 kΩ, 1%, 0.1 W 0603 Std Std
1 1 0 R4 16.9 kΩ RES, 16.9 kΩ, 1%, 0.1 W 0603 Std Std
0 0 1 R4 7.15 kΩ RES, 7.15 kΩ, 1%, 0.1 W 0603 Std Std
1 0 0 U1 TPS62901-Q1(1) 3-V to 18-V, 1-A, low IQ buck converter in 2.2-mm × 2-mm VQFN package with wettable flank 2.2 mm × 2 mm

TPS62901QRYTRQ1

 Texas Instruments
0 1 0 U1 TPS62902-Q1(1) 3-V to 18-V, 2-A, low IQ buck converter in 2.2-mm × 2-mm VQFN package with wettable flank 2.2 mm × 2 mm TPS62902QRYTRQ1 Texas Instruments
0 0 1 U1 TPS62903-Q1(1) 3-V to 18-V, 3-A, low IQ buck converter in 2.2-mm × 2-mm VQFN package with wettable flank 2.2 mm × 2 mm TPS62903QRYTRQ1 Texas Instruments
(1) The TPS6290x-Q1EVM may be populated with TPS6290x-Q1 (U1) devices that do not contain the correct top-side markings on the top of the device itself. These devices are still fully tested TPS6290x-Q1 devices.