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參數資料
| 型號： | LT3467IDDB#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 2.5 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 2 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WECD-1, DFN-8 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 266K |
| 代理商： | LT3467IDDB#TRPBF |
LT3467/LT3467A
1
3467afe
TYPICAL APPLICATION
DESCRIPTION
1.1A Step-Up DC/DC
Converter with
Integrated Soft-Start
The LT
3467/LT3467A switching regulators combine a
42V, 1.1A switch with a soft-start function. Pin compatible
with the LT1930, its low VCESAT bipolar switch enables the
device to deliver high current outputs in a small footprint.
The LT3467 switches at 1.3MHz, allowing the use of tiny,
low cost and low height inductors and capacitors. The
LT3467A switches at 2.1MHz, allowing the use of even
smaller components. High inrush current at start-up is
eliminated using the programmable soft-start function.
A single external capacitor sets the current ramp rate. A
constant frequency current mode PWM architecture results
in low, predictable output noise that is easy to lter.
The high voltage switch on the LT3467/LT3467A is rated
at 42V, making the devices ideal for boost converters up
to 40V as well as SEPIC and yback designs. The LT3467
can generate 5V at up to 540mA from a 3.3V supply or
5V at 450mA from four alkaline cells in a SEPIC design.
The LT3467A can generate 5V at up to 430mA from a 3.3V
supply or 15V at 135mA from a 3.3V supply. The LT3467/
LT3467A are available in a low prole (1mm) 6-lead SOT-23
package and tiny 3mm
× 2mm DFN package.
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.
Single Li-Ion Cell to 5V Boost Converter
FEATURES
APPLICATIONS
n 1.3MHz Switching Frequency (LT3467)
n 2.1MHz Switching Frequency (LT3467A)
n Low VCESAT Switch: 330mV at 1.1A
n High Output Voltage: Up to 40V
n Wide Input Range: 2.4V to 16V
n Dedicated Soft-Start Pin
n 5V at 540mA from 3.3V Input (LT3467)
n 5V at 430mA from 3.3V Input (LT3467A)
n 12V at 270mA from 5V Input (LT3467)
n 12V at 260mA from 5V Input (LT3467A)
n Uses Small Surface Mount Components
n Low Shutdown Current: <1μA
n Pin-for-Pin Compatible with the LT1930 and LT1613
n Low Prole (1mm) ThinSOT Package
n Low Prole (0.75mm) 8-Lead (3mm
× 2mm)
DFN Package
n Digital Cameras
n White LED Power Supplies
n Cellular Phones
n Medical Diagnostic Equipment
n Local 5V or 12V Supplies
n TFT-LCD Bias Supplies
n xDSL Power Supplies
GND
VIN
SW
SS
FB
VIN
2.6V TO
4.2V
2.7μH
402k
LT3467
3467 TA01a
15μF
3.3pF
4.7μF
133k
VOUT
5V
765mA AT VIN = 4.2V,
540mA AT VIN = 3.3V,
360mA AT VIN = 2.6V
SHDN
OFF ON
0.047μF
IOUT (mA)
EFFICIENCY
(%)
600
95
90
85
80
75
70
65
60
55
50
3467 TA01b
100
900
200 300 400 500
700 800
VIN = 3.3V
VIN = 4.2V
VIN = 2.6V
Efciency
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LT3467IS6#PBF | 制造商:Linear Technology 功能描述:BOOST 1.1A 1.3MHZ 6SOT 制造商:Linear Technology 功能描述:BOOST, 1.1A, 1.3MHZ, 6SOT 制造商:Linear Technology 功能描述:SP-SWREG/Monolithic, Cut Tape 1.1A, 1.3MHz Boost Converter with SS |
| LT3467IS6#TRM | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 2.2V to 16V 6-Pin TSOT-23 T/R |
| LT3467IS6#TRMPBF | 功能描述:IC REG BOOST ADJ 1.1A SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 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: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 |
| LT3467IS6#TRPBF | 功能描述:IC REG BOOST ADJ 1.1A SOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 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: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 |
| LT3468 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Photoflash Capacitor Chargers in ThinSOT |
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