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UA723CNSR Datasheet(PDF) 4 Page - Texas Instruments |
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UA723CNSR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 21 page µA723 PRECISION VOLTAGE REGULATORS SLVS057D – AUGUST 1972 – REVISED JULY 1999 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION Table 1. Resistor Values (k Ω) for Standard Output Voltages OUTPUT VOLTAGE APPLICABLE FIGURES FIXED OUTPUT ±5% OUTPUT ADJUSTABLE ±10% (SEE NOTE 6) (V) (SEE NOTE 5) R1 (k Ω) R2 (k Ω) R1 (k Ω) P1 (k Ω ) P2 (k Ω ) 3.0 1, 5, 6, 9, 11, 12 (4) 4.12 3.01 1.8 0.5 1.2 3.6 1, 5, 6, 9, 11, 12 (4) 3.57 3.65 1.5 0.5 1.5 5.0 1, 5, 6, 9, 11, 12 (4) 2.15 4.99 0.75 0.5 2.2 6.0 1, 5, 6, 9, 11, 12 (4) 1.15 6.04 0.5 0.5 2.7 9.0 2, 4, (5, 6, 9, 12) 1.87 7.15 0.75 1.0 2.7 12 2, 4, (5, 6, 9, 12) 4.87 7.15 2.0 1.0 3.0 15 2, 4, (5, 6, 9, 12) 7.87 7.15 3.3 1.0 3.0 28 2, 4, (5, 6, 9, 12) 21.0 7.15 5.6 1.0 2.0 45 7 3.57 48.7 2.2 10 39 75 7 3.57 78.7 2.2 10 68 100 7 3.57 105 2.2 10 91 250 7 3.57 255 2.2 10 240 –6 (see Note 7) 3, 10 3.57 2.43 1.2 0.5 0.75 –9 3, 10 3.48 5.36 1.2 0.5 2.0 –12 3, 10 3.57 8.45 1.2 0.5 3.3 –15 3, 10 3.57 11.5 1.2 0.5 4.3 –28 3, 10 3.57 24.3 1.2 0.5 10 –45 8 3.57 41.2 2.2 10 33 –100 8 3.57 95.3 2.2 10 91 –250 8 3.57 249 2.2 10 240 NOTES: 5. The R1/R2 divider can be across either VO or V(ref). If the divider is across V(ref), use the figure numbers without parentheses. If the divider is across VO, use the figure numbers in parentheses. 6. To make the voltage adjustable, the R1/R2 divider shown in the figures must be replaced by the divider shown below. R1 P1 R2 Adjustable Output Circuit 7. For Figures 3, 8, and 10, the device requires a minimum of 9 V between VCC+ and VCC– when VO is equal to or more positive than –9 V. |
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