SNVA381B November   2008  – December 2021 LM27341 , LM27341-Q1 , LM27342 , LM27342-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Evaluation Board Schematic
  4. 3Powering and Loading Considerations
    1. 3.1 Quick Start Procedure
    2. 3.2 Starting Up
    3. 3.3 Overcurrent Protection
    4. 3.4 Synchronization
    5. 3.5 Adjusting the Output Voltage
  5. 4Performance Characteristics
  6. 5Layout and Bill of Materials
  7. 6PCB Layout
  8. 7Revision History

5 Layout and Bill of Materials

The bill of materials is shown in Table 5-1, including the manufacturer and part number.

Table 5-1 Bill of Materials
Part NamePart IDPart ValuePart NumberManufacturer
Buck RegulatorU12A Buck RegulatorLM27342Texas Instruments
CINCIN10 µFTMK325B7106MM-TTaiyo Yuden
CBOOSTCB0.1 µFC0603C104K8RACTUKemet
COUTCOUT22 µFGRM32ER71A226KE20LMurata
COUT2COUT222 µFGRM32ER71A226KE20LMurata
Catch DiodeD1Schottky Diode, Vf = 0.32 VCMS06Toshiba
InductorL12.7 µHCDRH5D18BHHPNP-2R7MSumida
Feedback ResistorR1430 ΩMCR03EZPFX4300Rohm
Feedback ResistorR2187 ΩMCR03EZPFX1870Rohm
Pullup ResistorREN4.7 kΩMCR03EZPFX4701Rohm
Pulldown ResistorR_S4.7 kΩMCR03EZPFX4701Rohm
ConnectorsVIN, GND, GND, VOUT, EN, SYNCTurret160-2043-02-01-00Cambion
Test PointSWMiniature Test Point5000Keystone