SNVA389B July   2009  – February 2022 LM3000

 

  1.   Trademarks
  2. 1Introduction
  3. 2Powering and Loading Considerations
    1. 2.1 Quick Setup Procedure
  4. 3Board Configuration
    1. 3.1 External Clock Synchronization
    2. 3.2 CLKOUT
    3. 3.3 Tracking
    4. 3.4 Output Voltage Ripple
  5. 4Typical Performance Waveforms
  6. 5Evaluation Board Schematic
  7. 6Bill of Materials
  8. 7PCB Layout
  9. 8Revision History

6 Bill of Materials

Table 6-1 Bill of Materials
IDPart NumberTypeSizeParametersQtyVendor
C1, C2, C3, C4GRM31CR6E106KA12LCapacitor, Ceramic120610 µF, 25 V, X5R, 10%4Murata
C57343-43Not Used0
C6,C7, C8EEF-UE0G221RCapacitor, Polymer7343-43220 µF, 4 V, 12 mΩ3Panasonic
C9, C10, C11, C14GRM188R61E105KA12DCapacitor, Ceramic06031 µF, 25 V, X5R, 10%4Murata
C12, C13, C30, C31GRM188R71E104KA01DCapacitor, Ceramic06030.1 µF, 25 V, X7R, 10%4Murata
C15VJ0603Y821KXXACapacitor, Ceramic0603820 pF, 25 V, X7R, 10%1Vishay
C16VJ0603Y272KXXACapacitor, Ceramic06032.7 nF, 25 V, X7R, 10%1Vishay
C1706035C273KAT2ACapacitor, Ceramic06030.027 µF, 50 V, X7R, 10%1AVX
C18VJ0603Y183KXXACapacitor, Ceramic060318 nF, 25 V, X7R, 10%1Vishay
C19VJ0603A121JXAACapacitor, Ceramic0603120 pF, 50 V, COG, 5%1Vishay
C20, C21GRM31CR60J226KE19LCapacitor, Ceramic120622 µF, 6.3 V, X5R, 10%2Murata
C22VJ0603A120KXAACapacitor, Ceramic060312 pF, 50 V, COG, 5%1Vishay
C2306031A270KAT2ACapacitor, Ceramic060327 pF, 100 V, COG, 10%1AVX
C2406035C122KAT2ACapacitor, Electrolytic06031200 pF, 50 V, X7R, 10%1AVX
C25,C26GRM188R71C104KA01DCapacitor, Ceramic06030.1 µF, 16 V, X7R, 10%2Murata
C2706035A121JAT2ACapacitor, Ceramic0603120 pF, 50 V, COG, 5%1AVX
C28, C29EEEFK1H151PCapacitor, Aluminum10x10.2 mm150 µF, 50 V, 670 mA2Panasonic
C32, C3306031A180KAT2ACapacitor, Ceramic060318 pF, 100 V, COG, 10%2AVX
D1, D2CMSH3-40MDiode, SchottkySMA3 A, 40 V2Central Semiconductor
D3CMPD1001ADiode, SwitchingSOT-23250 mA, 90 V1Central Semiconductor
Dz1, Dz2CMHZ4690Diode, ZenerSOD-1235.6 V, 500 mW2Central Semiconductor
L17443551280Inductor2.8 µH, 20 A, 3.8 mΩ1Wurth Elektronik
L2744318120Inductor1.2 µH, 22 A, 1.79 mΩ1Wurth Elektronik
Q1, Q3HAT2168HN-CH MOSFETLF-PAK30 A, 30 V, 6 mΩ2Renesas Technology
Q2, Q4RJK0330DPBN-CH MOSFETLF-PAK45A, 30V, 2.1 mΩ2Renesas Technology
R1CRCW060313k3FKEAResistor060313.3 kΩ, 1%1Vishay
R2CRCW06032k94FKEAResistor06032.94 kΩ, 1%1Vishay
R3, R4CRCW060322k6FKEAResistor060322.6 kΩ, 1%2Vishay
R5CRCW06033R01FNEAResistor06033.01 Ω, 1%1Vishay
R6CRCW06032k67FKEAResistor06032.67 kΩ, 1%1Vishay
R7CRCW06034k64FKEAResistor06034.64 kΩ, 1%1Vishay
R8CRCW06034M99FKEAResistor06034.99 MΩ, 1%1Vishay
R9CRCW060315k4FKEAResistor060315.4 kΩ, 1%1Vishay
R10CRCW060314k3FKEAResistor060314.3 kΩ, 1%1Vishay
R11, R12CRCW0603100kFKEAResistor0603100 kΩ, 1%2Vishay
R13CRCW060342k2FKEAResistor060342.2 kΩ, 1%1Vishay
R14CRCW060335k7FKEAResistor060335.7 kΩ, 1%1Vishay
R15CRCW060310k0FKEAResistor060310 kΩ, 1%1Vishay
R16, R17CRCW06030000Z0EAResistor06030 Ω2Vishay
R18CRCW060375k0FKEAResistor060375 kΩ , 1%1Vishay
R19, R21CRCW06031k33FKEAResistor06031.33 kΩ, 1%2Vishay
R20CRCW0603102kFKEAResistor0603102 kΩ, 1%1Vishay
R22, R23CRCW040210R0FKEDResistor040210 Ω, 1%2Vishay
R24, R27, R28, R29, R30Resistor0603Not Used
R25, R26CRC060310R0FKEAResistor060310 Ω, 1%2Vishay
U1LM3000Controller32 Lead WQFN1Texas Instruments
VIN, VO1, VO2, GND1, GND21514-2Turret Terminal0.090" diameter5Keystone
CLKOUT, PGOOD2, TRK2, EN2, GND1573-2Turret Terminal0.072" diameter5Keystone
GND, EN1, TRK1, PGOOD1, SYNC1573-2Turret Terminal0.072" diameter5Keystone