參數(shù)資料
型號(hào): 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(guān)穩(wěn)壓器集成甲開關(guān)
文件頁數(shù): 23/26頁
文件大?。?/td> 643K
代理商: SC2440EVB
23
2005 Semtech Corp.
www.semtech.com
SC2440
POWER MANAGEMENT
Typical Application Circuits
C15
4.7
μ
F
R3
8.06K
SC2440
GND
SS2
IN
SW1
FB2
ROSC
COMP2
C9
22pF
R7
13.4K
BOOST1
C1
10
μ
F
BOOST2
SW2
L1
1.4
μ
H
C2
0.1
μ
F
L2
1.8
μ
H
C4
0.1
μ
F
PGOOD2
SS1
PGOOD1
COMP1
FB1
C3
20
μ
F
D1
D2
UPS120
R8
100K
R6
R9
15K
OUT1
3.3V/2A
R4
R2
R1
23.2K
C7
22nF
C10
22nF
C8
390pF
R5
15.4K
C5
390pF
D4
SYNC
L1 & L2: Sumida CR43
OUT2
1.8V/2A
D3
1N4148
VIN
5V
Figure 17(a). 1.3MHz 5V to 3.3V and 1.8V Step-down
Converter
Figures 17(b) and 17(c). Load Transient Response. I
OUT
is switched between 0.3A and 1.75A.
20
μ
s/div
Upper Trace : OUT1 Voltage, AC Coupled, 0.2V/div
Lower Trace : L
1
Inductor Current, 0.5A/div
(b)
OUT1
20
μ
s/div
Upper Trace : OUT2 Voltage, AC Coupled, 0.2V/div
Lower Trace : L
2
Inductor Current, 0.5A/div
(c)
OUT2
Efficiency vs Load Current
50
55
60
65
70
75
80
85
90
95
0
0.5
1
1.5
2
Load Current (A)
E
V
OUT2
= 1.8V
V
OUT1
= 3.3V
V
IN
= 5V
相關(guān)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(guān)代理商/技術(shù)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(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)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