Datasheet KA317, LM317 (Fairchild) - 5
| 制造商 | Fairchild |
| 描述 | 3-Terminal Positive Adjustable Regulator |
| 页数 / 页 | 7 / 5 — VI KA317 / LM317 VO. VADJ Input Ci. 0.1 μF IADJ. R2 adj R1. 240 Ω Output … |
| 文件格式/大小 | PDF / 237 Kb |
| 文件语言 | 英语 |
VI KA317 / LM317 VO. VADJ Input Ci. 0.1 μF IADJ. R2 adj R1. 240 Ω Output Co
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VI KA317 / LM317 VO
VADJ Input Ci
0.1 μF IADJ
R2 adj R1
240 Ω Output Co
1 μF VO = 1.25 V (1 + R2 / R1) + IADJR2 Figure 7. Typical Application
Note:
3. CI is required when the regulator is located an appreciable distance from power supply filter. CO is not needed for
stability; however, it does improve transient response. Since IADJ is controlled to less than 100 μA, the error
associated with this term is negligible in most applications. © 2002 Fairchild Semiconductor Corporation
KA317 / LM317 Rev. 1.2.2 www.fairchildsemi.com
5 KA317 / LM317 — 3-Terminal Positive Adjustable Regulator Typical Application(3)
VADJ Input Ci
0.1 μF IADJ
R2 adj R1
240 Ω Output Co
1 μF VO = 1.25 V (1 + R2 / R1) + IADJR2 Figure 7. Typical Application
Note:
3. CI is required when the regulator is located an appreciable distance from power supply filter. CO is not needed for
stability; however, it does improve transient response. Since IADJ is controlled to less than 100 μA, the error
associated with this term is negligible in most applications. © 2002 Fairchild Semiconductor Corporation
KA317 / LM317 Rev. 1.2.2 www.fairchildsemi.com
5 KA317 / LM317 — 3-Terminal Positive Adjustable Regulator Typical Application(3)