SLUU252B April   2006  – March 2022 TPS51124

 

  1.   Trademarks
  2. 1Description
  3. 2Electrical Performance
  4. 3Schematic
  5. 4Test Setup and Results
    1. 4.1 Test Setup
    2. 4.2 Test Procedure
    3. 4.3 Start-Up Performance
    4. 4.4 Transient Performance
  6. 5Configuration
    1. 5.1 Switching Frequency Selection
    2. 5.2 Bootstrap Diode Selection
  7. 6EVM Assembly Drawing and PCB Layout
  8. 7List of Materials
  9. 8References
  10. 9Revision History

7 List of Materials

Reference Designator QTY Description Size Mfr Part Number
— 1 Shunt,100-mil, Black 0.100 3M 929950-00
C1 0 Capacitor,Aluminum 0.26 × 0.26 inch Any Any
C13, C14 2 Capacitor, POSCAP, 330 mF, 2.5-V18-mW, 20% 7343 SANYO 2R5TPE330MI
C15 1 Capacitor,Ceramic, 4.7 mF,6.3 V, BJ, 20% 0805 TDK C2012X5R0J475K
C16 1 Capacitor,Ceramic, 1 mF,6.3 V, BJ, 20% 0805 TDK C2012X5R0J105K
C17 1 Capacitor,Ceramic, 18 pF, 50 V, BJ, 20% 0805 Std Std
C2, C3, C4, C5 4 Capacitor,Ceramic, 10 mF,25 V, BJ , 20% 1210 TDK / TaiyoYuden C3225JB1E106 /TMK325BJ106MM
C6, C11 2 Capacitor,Ceramic, 0.1 mF,50 V, BJ, 20% 0805 Std Std
C7, C8 2 Capacitor, POSCAP, 330 mF, 2.5-V15-mW, 20% 7343 SANYO 2R5TPE330MF
C9, C10, C12, C18 0 Capacitor,Ceramic 0805 Any Any
CN1, CN2 2 Adaptor, 3.5-mm probe clip (or 131-5031-00) 0.2 Tektronix 131-4244-00
D1, D2 0 Diode,Schottky, 0.5 A, 30 V SOD-123 Any Any
J1, J2 2 TerminalBlock, 2-pin, 15 A, 5.1 mm 0.40 × 0.35 inch OST ED1609
JP1 1 Header, 2×3-pin,100mil spacing (36-pin strip) 0.20 × 0.30 inch Sullins PTC36DAAN
L1, L2 2 Inductor,1.0 μH, 20.5 A, 2 mW 0.496 × 0.532 inch TOKO FDA1254-1R0M
Q1, Q3 2 MOSFET,N-ch, 30 V, 11 A, 12.5 mW SO8 IR IRF7821
Q2, Q4 2 MOSFET,N-ch, 30 V, 13.8 A, 6.8 mW SO8 IR IRF8113
R1, R7 2 Resistor,Chip, 100 kW,1/10W, 1% 0805 Std Std
R12, R13 0 Resistor,Chip 0805 Std Std
R2, R9, R10 3 Resistor,Chip, 3.3 W,1/10W, 1% 0805 Std Std
R3 1 Resistor,Chip, 28.7 kW,1/10W, 1% 0805 Std Std
R4, R6 2 Resistor,Chip, 75 kW,1/10W, 1% 0805 Std Std
R5 1 Resistor,Chip, 73.2 kW,1/10W, 1% 0805 Std Std
R8, R11 2 Resistor,Chip, 6.8 kW,1/10W, 1% 0805 Std Std
SW1, SW2 2 Switch,ON-ON Mini Toggle 0.28 × 0.18 inch Nikkai G12AP
TP1, TP2 2 Testpoint, White, Thru hole 0.125× 0.125 inch Keystone 5012
TP10 1 Testpoint, Orange, Thru hole 0.125× 0.125 inch Keystone 5013
TP3, TP4, TP5, TP6 4 Testpoint, Black, Thru hole 0.125× 0.125 inch Keystone 5011
TP7, TP8 2 Testpoint, Yellow, Thru hole 0.125× 0.125 inch Keystone 5014
TP9 1 Testpoint, Red, Thru hole 0.125× 0.125 inch Keystone 5010
U1 1 IC, Dual Synchronous Step-Down Controller for Low Voltage Power Rails QFN32 TI TPS51124RHB
VIN_GND,VIN, V5IN,V5IN_GND 4 Pin,Wiring Terminal 0.09(D) × 0.31 inch MillMax

3183-2-00-15-00-

00-080