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| 型号： | LT3580IDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV SEPIC 2A 8DFN |
| 标准包装： | 121 |
| 类型： | 升压（升压），反相，Sepic |
| 输出数： | 1 |
| 输入电压： | 2.5 V ~ 32 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2.5MHz |
| 电流 - 输出： | 2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 产品目录页面： | 1332 (CN2011-ZH PDF) |
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LT3580
Boost/Inverting DC/DC
Converter with 2A Switch,
Soft-Start, and Synchronization
FEATURES
DESCRIPTION
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2A Internal Power Switch
Adjustable Switching Frequency
Single Feedback Resistor Sets V OUT
Synchronizable to External Clock
High Gain SHDN Pin Accepts Slowly Varying
Input Signals
Wide Input Voltage Range: 2.5V to 32V
Low V CESAT Switch: 300mV at 1.5A (Typical)
Integrated Soft-Start Function
Easily Configurable as a Boost or Inverting Converter
User Configurable Undervoltage Lockout (UVLO)
Tiny 8-Lead 3mm × 3mm DFN and 8-Lead MSOP
Packages
The LT ? 3580 is a PWM DC/DC converter containing an
internal 2A, 42V switch. The LT3580 can be configured
as either a boost, SEPIC or inverting converter. Capable
of generating 12V at 550mA or –12V at 350mA from a
5V input, the LT3580 is ideal for many local power supply
designs.
The LT3580 has an adjustable oscillator, set by a resistor
from the RT pin to ground. Additionally, the LT3580 can
be synchronized to an external clock. The free running or
synchronized switching frequency range of the part can
be set between 200kHz and 2.5MHz.
The LT3580 also features innovative SHDN pin circuitry
that allows for slowly varying input signals and an adjust-
VFD Bias Supplies
TFT-LCD Bias Supplies
GPS Receivers
DSL Modems
APPLICATIONS
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able undervoltage lockout function.
Additional features such as frequency foldback and
soft-start are integrated. The LT3580 is available in tiny
3mm × 3mm 8-lead DFN and 8-lead MSOP packages.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
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Local Power Supply
trademarks are the property of their respective owners.
TYPICAL APPLICATION
1.2MHz, 5V to 12V Boost Converter Achieves Over 88% Efficiency
95
Efficiency and Power Loss
1200
V IN
5V
V IN
4.2μH
SW
10μF
V OUT
12V
550mA
90
85
1000
SHDN
GND
80
800
RT
LT3580
FB
130k
75
600
VC
70
SYNC
SS
10k
65
400
2.2μF
75k
0.1μF
1nF
60
3580 TA01
55
200
50
0
0
100
200
300
400
500
600
LOAD CURRENT (mA)
3580 TA01b
3580fg
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3580IDD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization |
| LT3580IMS8E | 制造商:LINER 制造商全称:Linear Technology 功能描述:Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization |
| LT3580IMS8E#PBF | 功能描述:IC REG BOOST INV SEPIC 2A 8MSOP 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 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-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT3580IMS8E#TRPBF | 功能描述:IC REG BOOST INV SEPIC 2A 8MSOP 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:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LT3580IMS8EPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Inv/Step-Up 32V MSOP8EP |
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