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(guān)穩(wěn)壓器集成甲開關(guān)
文件頁數(shù): 5/26頁
文件大?。?/td> 643K
代理商: SC2440EVB
5
2005 Semtech Corp.
www.semtech.com
SC2440
POWER MANAGEMENT
Block Diagrams
PGOOD1
14
COMP1
15
TRANSISTOR
ROSC
5
IN
3
FB1
16
SW1
EA
R
Q
S
PWM
-
-
+
+
POWER
SLOPE
COMP 1
+
+
+
-
ISEN
ILIM
+
-
20mV
S
7.7m
BOOST1
1
SS1
13
OSCILLATOR
CLK2
CLK1
FREQUENCY
DIVIDER
SLOPE COMP
SYNC
4
SLOPE
COMP 2
SLOPE
COMP 1
SS2
12
REFERENCE
& THERMAL
SHUTDOWN
1V
FAULT
OVLD
Soft-Start
And
Overload
Hiccup
Control 1
0.74V
FB1
POWER
GOOD
100mV
-
+
2
Figure 2. SC2440 Functional Diagram (One of Two Converters Shown)
FAULT
SS
OVLD
1V/2V
S
Q
R
+
-
1.8
μ
A
2.6
μ
A
FB
0.74V
Figure 3. Details of the Soft-Start and Overload Hiccup Control Circuit
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