- 您现在的位置：买卖IC网 > PDF目录14126 > LTC3419EDD-1#TRPBF (Linear Technology)IC REG BUCK SYNC ADJ .6A DL 8DFN PDF资料下载
参数资料
| 型号： | LTC3419EDD-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ .6A DL 8DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN-EP（3x3） |
LTC3419
Dual Monolithic 600mA
Synchronous Step-Down
Regulator
FEATURES
DESCRIPTION
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
High Ef?ciency Dual Step-Down Outputs: Up to 96%
600mA Current per Channel at V IN = 3V
Only 35μA Quiescent Current During Operation
(Both Channels)
2.25MHz Constant-Frequency Operation
2.5V to 5.5V Input Voltage Range
Low Dropout Operation: 100% Duty Cycle
No Schottky Diodes Required
Internally Compensated for All Ceramic Capacitors
Independent Internal Soft-Start for Each Channel
Available in Fixed Output Versions
Current Mode Operation for Excellent Line and Load
Transient Response
0.6V Reference Allows Low Output Voltages
User-Selectable Burst Mode ? Operation
Short-Circuit Protected
Ultralow Shutdown Current: I Q < 1μA
Available in Small MSOP or 3mm × 3mm DFN-8
The LTC ? 3419 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 ef?ciency 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
Packages
APPLICATIONS
output capacitors. The LTC3419 is available in a low pro?le
(0.75mm) 3mm × 3mm DFN package. The LTC3419 is also
available in a ?xed output voltage con?guration selected
via internal resistor dividers (see Table 2).
n
n
n
n
n
Cellular Telephones
Digital Still Cameras
Wireless and DSL Modems
Portable Media Players
PDAs/Palmtop PCs
, 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.
TYPICAL APPLICATION
Dual Monolithic Buck Regulator in 8-Lead 3 × 3 DFN
V IN
2.5V TO 5.5V
10μF
RUN2 V IN RUN1
MODE
100
90
80
70
60
Ef?ciency and Power Loss
vs Output Current
V IN = 3.6V
10
1
0.1
V OUT2
3.3μH
LTC3419
3.3μH
V OUT1
50
1.8V AT
600mA
22pF
SW2
SW1
22pF
2.5V AT
600mA
40
30
0.01
10μF
118k
59k
V FB2
GND
V FB1
59k
187k
10μF
20
10
0
V OUT = 1.2V
V OUT = 1.8V
V OUT = 2.5V
0.001
0.0001
3419 TA01
0.1
1
10 100
1000
OUTPUT CURRENT (mA)
3419 TA01b
3419fa
1
相关PDF资料 |
PDF描述 |
|---|---|
| LNT1K683MSE | CAP ALUM 68000UF 80V 20% SCREW |
| ECM06DRMT-S273 | CONN EDGECARD 12POS .156 WW |
| ACM06DSES-S243 | CONN EDGECARD 12POS .156 EYELET |
| ABM06DSES-S243 | CONN EDGECARD 12POS .156 EYELET |
| ASC13DREN-S734 | CONN EDGECARD 26POS .100 EYELET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3419EMS | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 600mA Synchronous Step-Down Regulator |
| LTC3419EMS#PBF | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3419EMS#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 0.6A 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC3419EMS-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Monolithic 600mA Synchronous Step-Down Regulator |
| LTC3419EMS-1#PBF | 功能描述:IC REG BUCK SYNC 0.6A DL 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
发布紧急采购，3分钟左右您将得到回复。