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LT8331 Datasheet(HTML) 7 Page - Analog Devices |
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LT8331 Datasheet(HTML) 7 Page - Analog Devices |
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LT8331 7 Rev. C For more information www.analog.com BLOCK DIAGRAM 8331 BD VC A7 • – + – + A6 – + – + A2 – + C1 L2 R4 OPT VBIAS + 0.4V(+) VBIAS – 1.6V(–) 4.4V(+) 4.0V(–) 3.2V REGULATOR SW1 OSCILLATOR A6 ERROR AMP SELECT FREQUENCY FOLDBACK INTVCC UVLO SWITCH LOGIC BURST DETECT SLOPE DRIVER M1 INTVCC TJ > 170°C 1.74V(+) 1.6V(–) INTERNAL REFERENCE UVLO CIN SW2 BIAS R3 OPT VIN COUT CVCC D1 L1 VOUT UVLO RT SYNC/MODE OVER- CURRENT A7 OVERCURRENT – + A1 PGND/GND ERROR AMP ERROR AMP SLOPE 1.6V FBX VOUT R2 R1 –0.8V MAX ILIMIT 1.9× MAX ILIMIT RSENSE PWM COMPARATOR Q1 R5 A3 A5 ISS 2 A M2 SS CSS EN/UVLO VIN UVLO A4 |
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