- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄80181 > LTC3419IMS#PBF (LINEAR TECHNOLOGY CORP) 1.2 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10 PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC3419IMS#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.2 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-10 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 266K |
| 代理商： | LTC3419IMS#PBF |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
LTC3419
1
3419fa
OUTPUT CURRENT (mA)
EFFICIENCY
(%)
100
90
80
70
60
50
40
30
20
10
0
POWER
LOSS
(W)
10
1
0.1
0.01
0.001
0.0001
0.1
10
100
1000
3419 TA01b
1
VOUT = 1.2V
VOUT = 1.8V
VOUT = 2.5V
VIN = 3.6V
n Cellular Telephones
n Digital Still Cameras
n Wireless and DSL Modems
n Portable Media Players
n PDAs/Palmtop PCs
FEATURES
APPLICATIONS
DESCRIPTION
Dual Monolithic 600mA
Synchronous Step-Down
Regulator
The LTC3419 is a dual, 2.25MHz, constant-frequency,
synchronous step-down DC/DC converter in a tiny
3mm
× 3mm DFN package. 100% duty cycle provides
low dropout operation, extending battery life in portable
systems. Low output voltages are supported with the 0.6V
feedback reference voltage. Each regulator can supply
600mA output current.
The input voltage range is 2.5V to 5.5V, making it ideal
for Li-Ion and USB powered applications. Supply current
during operation is only 35μA and drops to <1μA in
shutdown. A user-selectable mode input allows the user
to trade off between high efciency Burst Mode operation
and pulse-skipping mode.
An internally set 2.25MHz switching frequency allows the
use of tiny surface mount inductors and capacitors. Internal
soft-start reduces inrush current during start-up. Both
outputs are internally compensated to work with ceramic
output capacitors. The LTC3419 is available in a low prole
(0.75mm) 3mm
×3mmDFNpackage.TheLTC3419isalso
available in a xed output voltage conguration selected
via internal resistor dividers (see Table 2).
Dual Monolithic Buck Regulator in 8-Lead 3
× 3 DFN
n High Efciency Dual Step-Down Outputs: Up to 96%
n 600mA Current per Channel at VIN = 3V
n Only 35μA Quiescent Current During Operation
(Both Channels)
n 2.25MHz Constant-Frequency Operation
n 2.5V to 5.5V Input Voltage Range
n Low Dropout Operation: 100% Duty Cycle
n No Schottky Diodes Required
n Internally Compensated for All Ceramic Capacitors
n Independent Internal Soft-Start for Each Channel
n Available in Fixed Output Versions
n Current Mode Operation for Excellent Line and Load
Transient Response
n 0.6V Reference Allows Low Output Voltages
n User-Selectable Burst Mode Operation
n Short-Circuit Protected
n Ultralow Shutdown Current: IQ < 1μA
n Available in Small MSOP or 3mm
× 3mm DFN-8
Packages
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents,
including 5481178, 6127815, 6304066, 6498466, 6580258, 6611131.
Efciency and Power Loss
vs Output Current
VIN
RUN2
RUN1
LTC3419
VFB2
SW2
SW1
MODE
VFB1
22pF
GND
VIN
2.5V TO 5.5V
VOUT2
1.8V AT
600mA
VOUT1
2.5V AT
600mA
3419 TA01
118k
187k
59k
3.3μH3.3μH
10μF
TYPICAL APPLICATION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4040C20ILPE3 | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.048 V, PBCY3 |
| LQS50A48-1V2EK | 1-OUTPUT 60 W DC-DC REG PWR SUPPLY MODULE |
| LQS80A48-1V5REN | 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE |
| LH1601-2R-D5 | 1-OUTPUT AC-DC REG PWR SUPPLY MODULE |
| LES020ZG-3N1H | 1-OUTPUT 15 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3421 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:3A, 3MHz Micropower Synchronous Boost Converter with Output Disconnect |
| LTC3421EUF | 功能描述:IC REG BOOST SYNC ADJ 1.5A 24QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 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，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC3421EUF#PBF | 功能描述:IC REG BOOST SYNC ADJ 1.5A 24QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(kāi)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(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC3421EUF#TR | 功能描述:IC REG BOOST SYNC ADJ 1.5A 24QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 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，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LTC3421EUF#TRPBF | 功能描述:IC REG BOOST SYNC ADJ 1.5A 24QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:2,500 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，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。