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(yè)數(shù): 24/26頁(yè)
文件大小: 643K
代理商: SC2440EVB
24
2005 Semtech Corp.
www.semtech.com
SC2440
POWER MANAGEMENT
Typical Application Circuits
C15
4.7
μ
F
SC2440
GND
SS2
IN
SW1
FB2
ROSC
COMP2
C9
10pF
R7
11.8K
BOOST1
C1
10
μ
F
BOOST2
SW2
L1
1.8
μ
H
C2
0.1
μ
F
VIN
L2
1
μ
H
C4
0.1
μ
F
PGOOD2
SS1
SYNC
PGOOD1
COMP1
FB1
C3
22
μ
F
D1
D2
UPS120
R8
100K
R9
12.1K
OUT1
2.5V/2A
R10
4.02K
R11
R3
R2
R1
30.1K
C7
22nF
C10
22nF
C8
470pF
R5
14.7K
C5
470pF
D4
L1 & L2: Sumida CR43
OUT2
0.8V/2A
D3
BAT-54
5V
C6
10pF
30.1K
Figure 18(a). Producing an Output Lower than FB Voltage. 1.5MHz 5V to 2.5V and 0.8V Step-down Converter
R
3
is a pre-load to shunt the current from R
10
and R
11
before PGOOD1 releases SS2.
Figure 18(b). V
IN
Start-up Transient (I
OUT1
= I
OUT2
= 1A).
2ms/div
CH1
CH2
CH3
CH4
Load Regulation
-2.0
-1.5
-1.0
-0.5
0.0
0.0
0.5
1.0
1.5
2.0
Load Current (A)
P
CH1 : OUT1 Voltage, 0.5V/div
CH2 : OUT2 Voltage, 1V/div
CH3 : SS2 Voltage, 1V/div
CH4 : PGOOD2, 1V/div
OUT1
OUT2
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(yè)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