JAJS782 データシート

JAJS782G june 1999 – march 2023 LM2576 , LM2576HV

PRODUCTION DATA

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

Select R1 and R2, as shown in Figure 8-9.

Use Equation 7 to select the appropriate resistor values.

Equation 7.

V_{O U T} = V_{R E F} (1 + \frac{R_{2}}{R_{1}}) w h e r e V_{R E F} = 1.23 V

R₁ can be between 1k and 5k. (For best temperature coefficient and stability with time, use 1% metal film resistors)

Equation 8.

R_{2} = R_{1} (\frac{V_{O U T}}{V_{R E F}} - 1) = 1 k Ω (\frac{10 V}{1.23 V} - 1) S e l e c t R_{1} = 1 K Ω

R₂ = 1 k (8.13 − 1) = 7.13 k, closest 1% value is 7.15 k