參數(shù)資料
型號(hào): LTC3442
廠商: Linear Integrated Systems
英文描述: Micropower Synchronous Buck-Boost DC/DC Converter with Automatic Burst Mode Operation
中文描述: 微功率同步降壓升壓與自動(dòng)突發(fā)模式的DC / DC轉(zhuǎn)換器操作
文件頁數(shù): 12/20頁
文件大?。?/td> 332K
代理商: LTC3442
LTC3442
12
3442f
Figure 5. Soft-Start Circuitry
+
12
11
V
IN
ERROR AMP
1.22V
14
μ
A
FB
R1
R2
C
P1
V
C
V
OUT
1
SHDN/SS
C
SS
1V
ENABLE SIGNAL
R
SS
SOFT-START
CLAMP
TO PWM
COMPARATORS
CHIP
ENABLE
3442 F05
+
V
CI
OPERATIOU
response, Type 3 compensation is also recommended to
broad band the control loop and roll off past the two pole
response of the output LC filter. (See Closing the Feedback
Loop.)
Soft-Start
The soft-start function is combined with shutdown. When
the SHDN/SS pin is brought above 1V typical, the IC is
enabled but the EA duty cycle is clamped from V
C
. A
detailed diagram of this function is shown in Figure 5. The
components R
SS
and C
SS
provide a slow ramping voltage
on SHDN/SS to provide a soft-start function. To ensure
that V
C
is not being clamped, SHDN/SS must be raised
above 2.4V.
相關(guān)PDF資料
PDF描述
LTC3442EDE Micropower Synchronous Buck-Boost DC/DC Converter with Automatic Burst Mode Operation
LTC3458L 1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
LTC3458EDE 1.4A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
LTC3458 ECONOLINE: RSZ/P - 1kVDC
LTC3458LEDE 1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3442EDE 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2.4V to 5.5V 12-Pin DFN EP
LTC3442EDE#PBF 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN 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
LTC3442EDE#TR 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 2.4V to 5.5V 12-Pin DFN EP T/R
LTC3442EDE#TRPBF 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN 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:2,500 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,1.5V,1.8V,2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤
LTC3443 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Current Micropower 600kHz Synchronous Buck-Boost DC/DC Converter