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参数资料
| 型号： | LTC3526EDC#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC ADJ 0.5A 6DFN |
| 标准包装： | 500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.6 V ~ 5.25 V |
| 输入电压： | 0.5 V ~ 5 V |
| PWM 型： | 电流模式，Burst Mode? |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 500mA |
| 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： | 6-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-DFN-EP（2x2） |
LTC3526/LTC3526B
NOT RECOMMENDED FOR NEW DESIGNS
Contact Linear Technology for Potential Replacement
FEATURES
500mA 1MHz Synchronous
Step-Up DC/DC Converters
in 2mm × 2mm DFN
DESCRIPTION
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Delivers 3.3V at 100mA from a Single Alkaline/
NiMH Cell or 3.3V at 200mA from Two Cells
V IN Start-Up Voltage: 850mV
1.6V to 5.25V V OUT Range
Up to 94% Efficiency
Output Disconnect
1MHz Fixed Frequency Operation
V IN > V OUT Operation
Integrated Soft-Start
Current Mode Control with Internal Compensation
Automatic Burst Mode ? Operation with 9μA
Quiescent Current (LTC3526)
Low Noise PWM Operation (LTC3526B)
Internal Synchronous Rectifier
Logic Controlled Shutdown (I Q < 1μA)
Anti-Ringing Control
Low Profile (2mm × 2mm × 0.75mm) DFN Package
The LTC ? 3526/LTC3526B are synchronous, fixed frequency
step-up DC/DC converters with output disconnect. Syn-
chronous rectification enables high efficiency in the low
profile 2mm × 2mm DFN package. Battery life in single
AA/AAA powered products is extended further with an
850mV start-up voltage and operation down to 500mV
once started.
A switching frequency of 1MHz minimizes solution foot-
print by allowing the use of tiny, low profile inductors and
ceramic capacitors. The current mode PWM design is
internally compensated, reducing external parts count. The
LTC3526 features automatic Burst Mode operation at light
load conditions, while the LTC3526B features continuous
switching at light loads. Anti-ringing control circuitry also
reduces EMI concerns by damping the inductor in discon-
tinuous mode. Additional features include a low shutdown
current of under 1μA and thermal shutdown.
Medical Instruments
Flash-Based MP3 Players
Noise Canceling Headphones
Wireless Mice
Bluetooth Headsets
APPLICATIONS
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TYPICAL APPLICATION
The LTC3526/LTC3526B are housed in a 2mm × 2mm ×
0.75mm DFN package.
For new designs, we recommend the LTC3526L/LTC3526LB.
L , LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
LTC3526 Efficiency and Power Loss vs Load Current
4.7μH
100
90
80
V IN = 2.4V
EFFICIENCY
1000
100
V IN
1.6V TO 3.2V
1μF
OFF ON
SW
V IN V OUT
LTC3526
GND
SHDN FB
1.78M
1M
V OUT
3.3V
200mA
4.7μF
70
60
50
40
30
20
POWER LOSS
10
1
0.1
3526 TA01a
10
0
0.01
0.1
1
10
100
0.01
1000
LOAD CURRENT (mA)
3526 TA01b
3526bfd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3526EDC-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN |
| LTC3526L | 制造商:LINER 制造商全称:Linear Technology 功能描述:550mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN |
| LTC3526L-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3526LB | 制造商:LINER 制造商全称:Linear Technology 功能描述:400mA Step-Up DC/DC Converter with Maximum Power Point Control and 250mV Start-Up |
| LTC3526LB-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm X 2mm DFN |
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