參數(shù)資料
型號: MIC4682BM
廠商: MICREL INC
元件分類: 穩(wěn)壓器
英文描述: PRECISION CURRENT LIMIT SO-8 SUPERSWITCHER BUCK REGULATOR
中文描述: 1.1 A SWITCHING REGULATOR, 220 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOIC-8
文件頁數(shù): 8/15頁
文件大小: 226K
代理商: MIC4682BM
MIC4682
Typical Bode Plots
The following bode plots show that the MIC4682 is stable using a 68
μ
H inductor (L) and a 220
μ
F output capacitor (C
OUT
).
To assure stability, it is a good practice to maintain a phase margin of greater than 35
°
C.
Micrel
October 2003
8
M0334-102203
No-Load Stability
Phase Margin = 98
°
V
IN
= 7.5V
V
OUT
= 5V
I
OUT
= 0A
T
A
= 25
°
C
Full-Load Stability
Phase Margin = 56
°
V
IN
= 7.5V
V
OUT
= 5V
I
OUT
= 1A
T
A
= 25
°
C
No-Load Stability
Phase Margin = 109
°
V
IN
= 12V
V
OUT
= 5V
I
OUT
= 0A
T
A
= 25
°
C
Full-Load Stability
Phase Margin = 50
°
V
IN
= 12V
V
OUT
= 5V
I
OUT
= 1A
T
A
= 25
°
C
No-Load Stability
Phase Margin = 122
°
V
IN
= 34V
V
OUT
= 5V
I
OUT
= 0A
T
A
= 25
°
C
Full-Load Stability
Phase Margin = 45
°
V
IN
= 34V
V
OUT
= 5V
I
OUT
= 1A
T
A
= 25
°
C
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