參數(shù)資料
型號(hào): LTC3442
廠(chǎng)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(yè)數(shù): 19/20頁(yè)
文件大小: 332K
代理商: LTC3442
LTC3442
19
3442f
SW1
V
IN
SD/SS
R
LIM
R
T
SGND
SW2
V
OUT
FB
V
C
BURST
PGND
LTC3442
V
IN
2.7V TO
4.2V
LHXL-PW03
10
μ
F
6.3V
V
OUT
1nF
3442 TA05
3.3
μ
H
1nF
10
μ
F
6.3V
R5
7.87k
I
LED
= 500mA/1.5A
OPEN LED VOLTAGE LIMIT = (R4+R5) 0.95/R4
R2 = R1/1.5
I
LED
= 24 (R1+R2+R3)/(R1 R3) AMPS
(OR:
I
LED
= 40/R3 + .08)
95.3k
40.2k
2N7002
R2
200k
R1
301k
57.6k
R4
2k
R2
20k
OFF ON
LOW HI
TYPICAL APPLICATIO S
High Current LED Driver with Low/High Current Range for Pulsed
Applications; LED Current is 0.5A with 1.5A Pulse
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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參數(shù)描述
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LTC3442EDE#TRPBF 功能描述:IC REG BUCK BOOST SYNC ADJ 12DFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類(lèi)型:降壓(降壓) 輸出類(lèi)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(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP,10-MSOP(0.118",3.00mm 寬)裸露焊盤(pán) 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤(pán)
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