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LM3485MMX 参数 Datasheet PDF下载

LM3485MMX图片预览
型号: LM3485MMX
PDF下载: 下载PDF文件 查看货源
内容描述: 迟滞PFET降压控制器 [Hysteretic PFET Buck Controller]
分类和应用: 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件页数/大小: 15 页 / 372 K
品牌: NSC [ NATIONAL SEMICONDUCTOR ]
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LM3485
Typical Performance Characteristics
Efficiency vs Load Current
(V
OUT
= 5.0V, L = 22µH)
Unless otherwise specified, T
J
= 25˚C (Continued)
Start Up
20034620
20034631
Continuous Mode Operation
(V
IN
= 12V, V
OUT
= 3.3 V, I
OUT
= 500mA, L = 22µH)
Discontinuous Mode Operation
(V
IN
= 12V, V
OUT
=3.3 V, I
OUT
= 50mA, L = 22µH)
20034615
20034616
(V
OUT
Operating Frequency vs Input Voltage
= 3.3V, I
OUT
= 1A, C
OUT(ESR)
= 80mΩ, C
ff
= 100pF)
(V
OUT
Output Ripple Voltage vs Input Voltage
= 3.3V, I
OUT
= 1A, C
OUT(ESR)
= 80mΩ, C
ff
= 100pF)
20034613
20034643
7
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