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參數(shù)資料
| 型號： | LT1961 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 4A, 2MHz Dual Phase Step-Up DC/DC Converter in 3mm 3mm DFN |
| 中文描述： | 第4A，2MHz的雙相升壓直流/直流轉(zhuǎn)換器采用3mm 3mm的DFN封裝 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 213K |
| 代理商： | LT1961 |
LTC3428
1
3428f
The LTC
3428 is a 2-phase, current mode boost con-
verter, capable of supplying 2A at 5V from a 3.3V input.
Two 93m
, 2A N-channel MOSFET switches allow the
LTC3428 to deliver high efficiency from input voltages as
low as 1.6V.
External parts count and size are minimized by a 1MHz
switching frequency and a 2-phase design. Two phase
operation significantly reduces peak inductor currents
and capacitor ripple current, doubling the effective switch-
ing frequency and minimizing inductor and capacitor size.
External compensation allows the feedback loop response
to be optimized for a particular application.
Other features include: an active low shutdown pin re-
duces supply current to below 1
μ
A, internal soft-start,
antiringing control and thermal shutdown. The LTC3428
is available in a low profile (0.75mm) 10-lead (3mm
×
3mm) DFN package.
FEATURES
DESCRIPTIOU
APPLICATIU
■
Networking Equipment
■
Handheld Instruments
■
Digital Cameras
■
Distributed Power
■
Local 3.3V to 5V Conversion
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
V
OUT
SWA
SWB
FB
PGNDB
V
IN
SHDN
V
C
AGND
PGNDA
LTC3428
383k
121k
22
μ
F****
22pF
10k
1000pF
4.7
μ
F***
V
IN
3.3V
V
5V/2A
3428 TA01
2.2
μ
H*
2.2
μ
H*
OFF ON
TOKO FDV06302R2
PHILIPS PMEG1020
TAIYO YUDEN X5R JMK212BJ475MD
TAIYO YUDEN X5R JMK316BJ226ML
*
**
***
****
**
**
Efficiency vs Load Current
3.3V to 5V at 2A Converter
■
High Efficiency: Up to 92%
■
2-Phase Control Reduces Output Voltage Ripple
■
5V at 2A from 3.3V Input
■
3.3V at 1.5A from 1.8V Input
■
1.6V to 5.25V Adjustable Output Voltage
■
1.6V to 4.5V Input Range
■
Internal Soft-Start Operation
■
Low Shutdown Current: <1
μ
A
■
Uses Small Surface Mount Components
■
10-Pin 3mm
×
3mm DFN Package
4A, 2MHz Dual Phase
Step-Up DC/DC Converter
in 3mm
×
3mm DFN
LOAD CURRENT (A)
0.1
E
95
90
85
80
75
70
65
60
55
50
45
1
2
3428 TA02
V
IN
= 3.3V
V
= 5V
L = 2.2
μ
H
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1961EMS8E | 功能描述:IC REG BOOST ADJ 1.5A 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 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:SOT-23-6 細型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LT1961EMS8E#PBF | 功能描述:IC REG BOOST ADJ 1.5A 8MSOP 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(guān):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(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1961EMS8E#TR | 功能描述:IC REG BOOST ADJ 1.5A 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 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:SOT-23-6 細型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LT1961EMS8E#TRPBF | 功能描述:IC REG BOOST ADJ 1.5A 8MSOP 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:- 標準包裝:500 系列:- 類型:切換式電容器（充電泵），反相 輸出類型:固定 輸出數(shù):1 輸出電壓:-3V 輸入電壓:2.3 V ~ 5.5 V PWM 型:Burst Mode? 頻率 - 開關(guān):900kHz 電流 - 輸出:100mA 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:SOT-23-6 細型，TSOT-23-6 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:TSOT-23-6 其它名稱:LTC1983ES6-3#TRMTR |
| LT1961EMS8EPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Up 3-25V MSOP8EP |
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