參數(shù)資料
型號： SC2440EVB
廠商： Semtech Corporation
英文描述： 2.5 MHz Dual Switching Regulator with Integrated 2A Switches
中文描述： 2.5 MHz雙開關穩(wěn)壓器集成甲開關
文件頁數(shù)： 19/26頁
文件大?。?/td> 643K
代理商： SC2440EVB
19
2005 Semtech Corp.
www.semtech.com
SC2440
POWER MANAGEMENT
Applications Information
(
)
1
R
+
+
+
=
11
2
1
11
R
2
1
2
OUT
FB
C
s
1
R
sC
1
R
R
R
v
v
(9)
and
(
)
R
(
) (
)
5
6
O
5
5
5
sC
O
R
MA
sC
FB
COMP
v
1
1
R
sC
+
1
R
G
+
v
+
≈
(10)
provided that
6
5
C
C
>>
and
5
O
R
R
>>
.
In Equation (10), C
forms a low frequency pole p
with
the output resistance R
O
of the error amplifier and C
6
forms a high frequency pole p
with R
. Using the
component values shown in Figure 1 for the 12V to 3.3V
regulator (1.3MHz),
=
μ
=
=
M
6
280
dB
53
ce
tan
c
Transcondu
Gain
Loop
Open
Amplifier
R
1
O
Hz
210
Krads
3
pF
470
M
6
1
C
R
1
1
5
O
1
p
=
=
=
=
ω
MHz
0
Mrads
5
pF
10
K
4
=
15
1
C
R
1
1
6
5
3
p
=
=
=
ω
Bode Plots of Control-to-Ouput, Output-to-Control and the Overall Loop
Gain. Control-to-output transfer function is shown with two poles near
half the switching frequency
ω
S
.
Figure 13.
2
p
ω
1
OUT
C
R
n
5
O
C
R
1
1
p
ω
3
p
ω
6
5
C
R
1
5
5
C
R
1
1
Z
ω
C
ω
ω
Gain
2
S
ω
OUT
MP
R
G
+
2
1
2
O
MA
R
R
R
R
G
+
2
1
2
5
MA
R
R
R
R
G
n
R
C
OUT
1
C
ω
)
j
ω
OUT
COMP
v
v
Control-to-Output
Transfer Function
相關PDF資料
PDF描述
SC2440TETRT 2.5 MHz Dual Switching Regulator with Integrated 2A Switches
SC2441A 1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter
SC2441AEVB 1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter
SC2441ATETRT 1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter
SC2441 Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter
相關代理商/技術參數(shù)
參數(shù)描述
SC2440STDEVB 制造商:Semtech Corporation 功能描述:Evaluation Board For 2.5 MHz Dual Switching Regulator With Integrated 2A Switches
SC2440TE.TRTCUT 制造商:Semtech Corporation 功能描述:
SC2440TETRT 功能描述:IC REG BUCK 2A DL 16TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
SC2441 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Very Low Input Voltage 2-Phase Synchronous Step-down Controllers with Step-up Converter
SC2441A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:1.8V to 20V Input 2-Phase Synchronous Step-down Controllers with Step-up Converter
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*