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MPQ9842GL Datasheet(PDF) 20 Page - MPS Industries, Inc. |
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MPQ9842GL Datasheet(HTML) 20 Page - MPS Industries, Inc. |
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20 / 37 page  MPQ9842 – 36V, 2A, LOW IQ, SYNCHRONOUS STEP-DOWN CONVERTER MPQ9842 Rev. 1.1 www.MonolithicPower.com 20 7/29/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. BLOCK DIAGRAM Oscillator PLL Reference Error Amplifier Control Logic, OCP, OTP, BST Refresh FB PGND SW BST VIN EN PG 90%xVREF ISW + + - SS + - VREF VCC VFB VFB VCC VCC VCC Regulator IREVERSE BIAS FREQ SYNC PHASE AGND VC R1 460k Ω C1 52pF C2 0.2pF VCC VREF + - VFB 110%xVREF Logic Figure 1-1: Functional Block Diagram of Output Adjustable Version Oscillator PLL Reference Error Amplifier Control Logic, OCP, OTP, BST Refresh FB PGND SW BST VIN EN PG 90%xVREF ISW + + - SS + - VREF VCC VFB VFB VCC VCC VCC Regulator IREVERSE BIAS FREQ SYNC PHASE AGND VC R1 460kΩ C1 52pF C2 0.2pF VCC VREF + - VFB 110%xVREF Logic R2 R3 360kΩ R2 is 1125kΩ for 3.3V fixed output, 1890kΩ for 5V fixed output. Figure 1-2: Functional Block Diagram of Fixed Output Version |
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