參數(shù)資料
型號： LT3580HMS8E#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 2.8 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO8
封裝： LEAD FREE, PLASTIC, MSOP-8
文件頁數(shù)： 1/28頁
文件大小： 289K
代理商： LT3580HMS8E#PBF
LT3580
1
3580fg
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Boost/Inverting DC/DC
Converter with 2A Switch,
Soft-Start, and Synchronization
The LT3580 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-
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.
1.2MHz, 5V to 12V Boost Converter Achieves Over 88% Efficiency
n 2A Internal Power Switch
n Adjustable Switching Frequency
n Single Feedback Resistor Sets VOUT
n Synchronizable to External Clock
n High Gain SHDN Pin Accepts Slowly Varying
Input Signals
n Wide Input Voltage Range: 2.5V to 32V
n Low VCESAT Switch: 300mV at 1.5A (Typical)
n Integrated Soft-Start Function
n Easily Configurable as a Boost or Inverting Converter
n User Configurable Undervoltage Lockout (UVLO)
n Tiny 8-Lead 3mm
× 3mm DFN and 8-Lead MSOP
Packages
n VFD Bias Supplies
n TFT-LCD Bias Supplies
n GPS Receivers
n DSL Modems
n Local Power Supply
Efficiency and Power Loss
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
trademarks are the property of their respective owners.
10μF
VOUT
12V
550mA
4.2μH
130k
VIN
5V
VIN
SW
3580 TA01
LT3580
75k
10k
SHDN
GND
FB
VC
SYNC
SS
RT
1nF
0.1μF
2.2μF
LOAD CURRENT (mA)
0
50
EFFICIENCY
(%)
POWER
LOSS
(mW)
55
65
70
75
400
95
3580 TA01b
60
200
100
500
300
600
80
85
90
0
200
600
1200
400
800
1000
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相關代理商/技術參數(shù)
參數(shù)描述
LT3580IDD 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv/Step Up 2.5V to 32V 8-Pin DFN EP
LT3580IDD#PBF 功能描述:IC REG BOOST INV SEPIC 2A 8DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 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:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
LT3580IDD#TRPBF 功能描述:IC REG BOOST INV SEPIC 2A 8DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關:600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應商設備封裝:8-SOIC
LT3580IDDPBF 制造商:Linear Technology 功能描述:DC-DC Converter Inv/Step-Up 2.5-32V DFN8
LT3580IDD-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization
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