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参数资料
| 型号： | LT3494EDDB#PBF |
| 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, LEAD FREE, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件页数： | 4/12页 |
| 文件大小： | 261K |
| 代理商： | LT3494EDDB#PBF |
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
相关PDF资料 |
PDF描述 |
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| LT3494EDDB | 0.25 A SWITCHING REGULATOR, PDSO8 |
| LT3502AEDC#PBF | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8 |
| LT3502AIDC#PBF | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO8 |
| LT3502AIDC#TR | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
| LT3502AEDC#TRM | 1.1 A SWITCHING REGULATOR, 2800 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3494EDDBTRMPBF | 制造商:Linear Technology 功能描述:Boost Converter uPower Low Noise DFN8EP |
| LT3495 | 制造商:LINER 制造商全称:Linear Technology 功能描述:650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect |
| LT3495-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect |
| LT3495B | 制造商:LINER 制造商全称:Linear Technology 功能描述:650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect |
| LT3495B-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect |
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