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MAX5041BEAI Datasheet(PDF) 11 Page - Maxim Integrated Products |
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MAX5041BEAI Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 26 page Dual-Phase, Parallelable, Average Current-Mode Controllers ______________________________________________________________________________________ 11 Detailed Description The MAX5038/MAX5041 (Figures 1 and 2) average cur- rent-mode PWM controllers drive two out-of-phase buck converter channels. Average current-mode con- trol improves current sharing between the channels while minimizing component derating and size. Parallel multiple MAX5038/MAX5041 regulators to increase the output current capacity. For maximum ripple rejection at the input, set the phase shift between phases to 90° for two paralleled converters, or 60° for three paralleled converters. Paralleling the MAX5038/MAX5041s improves design flexibility in applications requiring upgrades (higher load). CLKIN PLLCMP PGND PHASE DL2 LX2 DH2 DL1 LX1 DH1 VCC EAOUT EAN DIFF EN CSP2 CSN2 CSP1 CSN1 MAX5038 3 R1 C39 VIN = +12V C1, C2 21 15 IN C25 C26 R4 R7 R8 R6 C29 C30 R5 C27 C28 SGND CLP2 CLP1 Q2 Q1 D2 Q2 D1 VIN Q1 VIN D4 D3 C32 C12 C31 C3–C7 L2 R3 L1 R2 C13 C8–C11 C14, C15 C16–C24, C33 LOAD +1.8V AT 60A VOUT SENSE - SENSE + 17 18 19 16 20 25 24 23 26 9 8 14 13 1 2 BST1 VCC 28 4 10 11 12 7 5 6 22 BST2 NOTE: SEE TABLE 1 FOR COMPONENT VALUES. VCC RX Figure 1. MAX5038 Typical Application Circuit, VIN = +12V |
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