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MCP2021 Datasheet(PDF) 17 Page - Microchip Technology |
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MCP2021 Datasheet(HTML) 17 Page - Microchip Technology |
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17 / 52 page  © 2005-2012 Microchip Technology Inc. DS22018F-page 17 MCP2021/2/1P/2P 1.6.2 3.3V REGULATOR A metal option provides for a alternate 3.30 VDC ±3% at up to 50 mA of load current over the entire operating temperature range of -40°C to +125°C. All specifications given above for the 5.0V operation apply except for any difference noted here. The same input tracking of 4.25V applies the 3.3V regulator. FIGURE 1-10: Voltage Regulator Output on POR. Note: The regulator has an overload current limiting of approximately 100 mA. If VREG is lower than 2.5V, the VREG will turn off. Note 1: Start-up, VBB < 5.75V, regulator off. 2: VBB > 5.75V, regulator on. 3: VBB ≤ 5.5V, regulator tracks VBB. 4: VBB < 4.25V, regulator will turn off. 5.0 3.5 3 0 (1) (2) (3) t 0 t 6 2 8 4 VBB V VREG V |
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