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參數(shù)資料
| 型號(hào)： | LT3494EDDB |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.25 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | 3 X 2 MM, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大?。?/td> | 261K |
| 代理商： | LT3494EDDB |
LT3494/LT3494A
12
3494fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2006
LT 0507 REV B PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
LT1613
550mA (ISW), 1.4MHz, High Efciency Step-Up DC/DC Converter
VIN: 0.9V to 10V, VOUT(MAX) = 34V, IQ = 3mA, ISD < 1μA,
ThinSOT Package
LT1615/LT1615-1 300mA/80mA (ISW), High Efciency Step-Up DC/DC Converters
VIN: 1V to 15V, VOUT(MAX) = 34V, IQ = 20μA, ISD < 1μA,
ThinSOT Package
LT1930/LT1930A
1A (ISW), 1.2MHz/2.2MHz, High Efciency Step-Up DC/DC
Converters
VIN: 2.6V to 16V, VOUT(MAX) = 34V, IQ = 4.2A/5.5mA, ISD < 1μA,
ThinSOT Package
LT1945 (Dual)
Dual Output, Boost/Inverter, 350mA (ISW), Constant Off-Time, High
Efciency Step-Up DC/DC Converter
VIN: 1.2V to 15V, VOUT(MAX) = ±34V, IQ = 40μA, ISD < 1μA,
10-Lead MS Package
LT1946/LT1946A
1.5A (ISW), 1.2MHz/2.7MHz, High Efciency Step-Up DC/DC
Converters
VIN: 2.45V to 16V, VOUT(MAX) = 34V, IQ = 3.2mA, ISD < 1μA,
8-Lead MS Package
LT3467/LT3467A
1.1A (ISW), 1.3MHz/2.1MHz, High Efciency Step-Up DC/DC
Converters with Soft-Start
VIN: 2.4V to 16V, VOUT(MAX) = 40V, IQ = 1.2mA, ISD < 1μA,
ThinSOT Package
LT3463/LT3463A
Dual Output, Boost/Inverter, 250mA (ISW), Constant Off-Time, High
Efciency Step-Up DC/DC Converters with Integrated Schottkys
VIN: 2.3V to 15V, VOUT(MAX) = ±40V, IQ = 40μA, ISD < 1μA,
DFN Package
LT3471
Dual Output, Boost/Inverter, 1.3A (ISW), High Efciency
Boost-Inverting DC/DC Converter
VIN: 2.4V to 16V, VOUT(MAX) = ±40V, IQ = 2.5mA, ISD < 1μA,
DFN Package
Figure 6. One Li-Ion Cell Input Boost Converter with the LT3494A
SW
CAP
D1
VCC
SHDN
CTRL
7
6
2
3
5
4
VOUT
FB
GND
R1
3494 F06
LT3494A
C2
4.7
μF
C1, C2: X5R OR X7R WITH SUFFICIENT VOLTAGE RATING
C3: TAIYO YUDEN TMK316BJ106ML
D1: CENTRAL SEMICONDUCTOR CMDSH-3
L1: MURATA LQH32CN100K53
L1
10
μH
C1
0.47
μF
C3
10
μF
8
1
VIN
3V TO 4.2V
VOUT
LOAD CURRENT (mA)
0.1
60
EFFICIENCY
(%)
POWER
LOSS
(mW)
70
80
1
10
100
3494 F06b
50
55
65
75
45
40
100
200
300
50
150
250
0
VIN = 3.6V
VOUT = 16V
LOAD FROM CAPACITOR
LOAD FROM VOUT
LOAD CURRENT (mA)
0.1
0
V
OUT
PEAK-TO-PEAK
RIPPLE
(mV)
10
15
1
10
100
3494 F06c
5
100MHz MEASUREMENT BW
Efciency and Power Loss vs Load Current
Output Voltage Ripple vs Load Current
VOUT
R1 VALUE REQUIRED
(M
Ω)
MAXIMUM OUTPUT CURRENT AT
3V INPUT (mA)
25
3.57
13.0
24
3.40
14.0
23
3.24
15.0
22
3.09
16.5
21
2.94
17.5
20
2.80
19.0
19
2.67
20.0
18
2.49
21.5
17
2.37
23.0
16
2.21
25.0
15
2.05
27.0
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| LT3502AEDC#PBF | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3494EDDB#PBF | 制造商:Linear Technology 功能描述:DC-DC CONVERTER BOOST DFN-8 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, DFN-8; Primary Input Voltage:16V; No. of Outputs:1; Output Current:180mA; No. of Pins:8; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:8-DFN; Supply Voltage Max:16V ;RoHS Compliant: Yes |
| LT3494EDDB#TRM | 制造商:Linear Technology 功能描述:MICROPOWER LOW NOISE BOOST CONVERTERS WITH OUTPUT DISCONNECT |
| LT3494EDDB#TRMPBF | 功能描述:IC REG BOOST ADJ 0.18A 8DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色產(chǎn)品:BD91x Series Step-Down Regulators 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:兩者兼有 輸出數(shù):2 輸出電壓:3.3V，0.8 V ~ 2.5 V 輸入電壓:4.5 V ~ 5.5 V PWM 型:電流模式 頻率 - 開(kāi)關(guān):1MHz 電流 - 輸出:1.5A 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:20-VFQFN 裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:VQFN020V4040 產(chǎn)品目錄頁(yè)面:1373 (CN2011-ZH PDF) 其它名稱:BD9152MUV-E2TR |
| LT3494EDDB#TRPBF | 功能描述:IC REG BOOST ADJ 0.18A 8DFN RoHS:是 類別: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:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開(kāi)關(guān):900kHz 電流 - 輸出:100mA 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 細(xì)型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LT3494EDDBTRMPBF | 制造商:Linear Technology 功能描述:Boost Converter uPower Low Noise DFN8EP |
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