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參數(shù)資料
| 型號(hào)： | LTC3459 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 10V Micropower Synchronous Boost Converter in ThinSOT |
| 中文描述： | 10V的微功率同步升壓轉(zhuǎn)換器采用ThinSOT |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 216K |
| 代理商： | LTC3459 |
LTC3459
1
3459f
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is trademark of Linear Technology Corporation.
I
Small Solution Size
I
>85% Efficiency over Wide Load Range
I
Internal Synchronous Rectifier
I
V
IN
Range: 1.5V to 5.5V
I
5V at 30mA from 3.3V Input
I
3.3V at 20mA from 2 AA Cell Input
I
Programmable Output Voltages Up to 10V
I
Burst Mode
Operation
I
Inrush Current Limiting
I
Output Disconnect in Shutdown
I
Ultralow Quiescent (10
μ
A) and Shutdown
(<1
μ
A) Currents
I
Low Profile (1mm) SOT-23 Package
10V Micropower
Synchronous Boost Converter
in ThinSOT
I
General Purpose Micropower Boost
I
Digital Cameras
I
PDAs
I
LCD Bias
I
Small OLED Displays
I
Supercap Charging
The LTC
3459 is a low current, high efficiency synchronous
boost converter intended for low power, size constrained
portable applications. The LTC3459 can be powered from
a single lithium ion battery, a 2- to 3-cell stack of Alkaline
or Nickel batteries, or any low impedance voltage source
between 1.5V and 5.5V. The output is programmable via
an external divider between 2.5V and 10V. Although the part
is primarily intended for boost applications, V
OUT
will
maintain regulation below V
IN
(at reduced efficiency).
The LTC3459 offers Burst Mode operation with a fixed
peak current, providing high conversion efficiency over a
wide range of load currents. During start-up, inductor
current is controlled preventing the inrush surge current
found in many boost converters. In shutdown the output
is disconnected from the input and quiescent current is
reduced to <1
μ
A.
The LTC3459 is offered in a low profile (1mm) 6-pin
SOT-23 (ThinSOT
TM
) package allowing a tiny footprint for
the total solution.
SW
22
μ
H
V
IN
2M
47pF
V
OUT
8V
30mA
4.7
μ
F
1
μ
F
5V
LTC3459
SHDN
V
OUT
FB
OFF ON
GND
365k
3459 TA01a
5V to 8V Converter
I
LOAD
(mA)
60
E
70
80
90
100
0.01
1
10
100
3459 TA01b
50
0.1
V
IN
= 5V
V
OUT
= 8V
Efficiency
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3459_07 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:10V Micropower Synchronous Boost Converter |
| LTC3459EDC#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Step Up 1.5V to 5.5V 6-Pin DFN EP |
| LTC3459EDC#TRMPBF | 功能描述:IC REG BOOST SYNC ADJ 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC3459EDC#TRPBF | 功能描述:IC REG BOOST SYNC ADJ 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
| LTC3459EDCB#TRMPBF | 功能描述:IC REG BOOST SYNC ADJ 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)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(guān):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(yīng)商設(shè)備封裝:8-SOIC |
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