SLUU408A February   2010  – January 2022 TPS51125A

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Schematic
  5. 4Test Setup and Results
    1. 4.1 Test Setup
    2. 4.2 Test Procedure
    3. 4.3 Start-Up Performance
  6. 5Configuration
    1. 5.1 Switching Frequency Selection
    2. 5.2 Operation Mode Selection
    3. 5.3 VCLK ON/OFF Selection
  7. 6Physical Layouts
  8. 7List of Materials
  9. 8References
  10. 9Revision History

7 List of Materials

List of materials for the TPS51125A-EVM.

Table 7-1 TPS51125A Bill of Materials
RERERENCE
DESIGNATOR		QTYDESCRIPTIONSIZEMFRPART NUMBER
C1, C2, C3, C4, C13, C236Capacitor, Ceramic, 0.1 µF, 50 V, X5R, 10%0603muRataGRM188B31H104K
C51Capacitor, Ceramic, 1 μF, 25 V, X5R, 10%0805TDKC2012X7R1E105K
C6, C7, C24, C254Capacitor, Ceramic, 10 μF, 25 V, BJ, M1210Taiyo YudenTMK325BJ106MM
C8, C9, C14, C16, C18, C260Capacitor0603AnyAny
C10, C210Capacitor7343 (D)AnyAny
C11, C222Capacitor, POS, 330 μF, 6.3 V, 25 mΩ, 20%7343 (D)SANYO6TPE330ML
C12, C200Capacitor0805AnyAny
C15, C172Capacitor, Ceramic, 10 μF, 6.3 V, X5R, 10%0805TDKC2012X5R0J106K
C191Capacitor, Ceramic, 0.22 µF, 16 V, B, 10%0603muRataGRM188B11C224K
CN1, CN22Adaptor, 3.5-mm probe clip ( or 131-5031-00)0.2Tektronix131-4244-00
D11Diode, Schottky Barrier Array, 40 mA, 40 VSOT363DiodesBAS40DW-04
D2, D50Diode, Schottky, 0.5 A, 30 VSOD123AnyAny
D3, D42Diode, Schottky, 3 A, 20 VSMARohmRSX501LA-20 or
RSX501L-20
JP11Header, 2×4-pin, 100 mil spacing (36-pin strip)0.20 × 0.40 inSullinsPTC36DAAN
JP21Header, 2×3-pin, 100 mil spacing (36-pin strip)0.20 × 0.30 inSullinsPTC36DAAN
L1, L22Inductor, high-current, 5.9 mΩ, 14 A, SMT0.425 × 0.45 inTokoFDA1055-3R3M
Q1, Q32MOSFET, N-channel, 30 V, 13.6 A, 9.1 mΩSO8IRIRF7821
Q2, Q42MOSFET, N-channel, 30 V, 10 A, 12 mΩSO8FairchildFDS6690AS
R1, R3, R8, R11, R13, R146Resistor, Chip, 0 Ω, 1/16 W, 1%0603StdStd
R2, R162Resistor, Chip, 5.1 Ω, 1/16W, 1%0603StdStd
R41Resistor, Chip, 30 kΩ, 1/16W, 1%0603StdStd
R51Resistor, Chip, 100 kΩ, 1/16W, 1%0603StdStd
R6, R102Resistor, Chip, 130 kΩ, 1/16W, 1%0603StdStd
R7, R92Resistor, Chip, 20 kΩ, 1/16W, 1%0603Std
R121Resistor, Chip, 13 kΩ, 1/16W, 1%0603StdStd
R151Resistor, Chip, 620 Ω, 1/16W, 1%0603StdStd
S11Header, 2-pin, 100 mil spacing, (36-pin strip)0.2 × 0.2 inSullinsPTC36SAAN
SW1, SW22Switch, ON-ON mini toggle0.28 × 0.18 inNikkaiG-12AP
TP1, TP2, TP3, TP4, TP5, TP6, TP77Test point, yellow, through-hole0.125 × 0.125 inKeystone5014
U11Dual synchronous step-down controller with OOA operation and 100-mA LDOQFN-24TITPS51125ARGE
VBAT, VBAT_GND, VO1, VO1_GND, VO2, VO2_GND6Pin, wiring terminal0.12(D) × 0.4 inMill Max3138-2-00-15-00-00-080
1Printed circuit board3.5 × 2.7 × 0.062 inAnyTPS51125AEVM
3Shunt, 2POs, gold0.100 × 0.200 inchMolex15-29-1025
4Standoff M/F hex 4-40 nylon0.625 inKeystone4803
4Nut hex 4-40 nylonBuilding FastenersNY HN 440