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参数资料
| 型号： | LT3494EDDB |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.25 A SWITCHING REGULATOR, PDSO8 |
| 封装： | 3 X 2 MM, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件页数： | 4/12页 |
| 文件大小： | 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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| LT3502AIDC#TR | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
| LT3494EDDB#TRPBF | 功能描述:IC REG BOOST ADJ 0.18A 8DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:500 系列:- 类型:切换式电容器（充电泵），反相 输出类型:固定 输出数:1 输出电压:-3V 输入电压:2.3 V ~ 5.5 V PWM 型:Burst Mode? 频率 - 开关:900kHz 电流 - 输出:100mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 细型，TSOT-23-6 包装:带卷 (TR) 供应商设备封装:TSOT-23-6 其它名称:LTC1983ES6-3#TRMTR |
| LT3494EDDBTRMPBF | 制造商:Linear Technology 功能描述:Boost Converter uPower Low Noise DFN8EP |
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