参数资料
| 型号： | LT3083EQ#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 3A 5-DDPAK |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 可调至 23V |
| 输入电压： | 1.2 V ~ 23 V |
| 电压 - 压降（标准）： | 1.25V @ 3A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 3A |
| 电流 - 限制（最小）： | 3A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-6，D²Pak（5 引线+接片），TO-263BA |
| 供应商设备封装： | DDPAK/TO-263-5 |
| 包装： | 管件 |
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LT3083
Outputs May be Paralleled for Higher Current and
Output Current: 3A
Single Resistor Programs Output Voltage
50μA Set Pin Current: 1% Initial Accuracy
Output Adjustable to 0V
Low Output Noise: 40μV RMS (10Hz to 100kHz)
Wide Input Voltage Range: 1.2V to 23V
Low Dropout Voltage: 310mV
<1mV Load Regulation
<0.001%/V Line Regulation
Minimum Load Current: 1mA
Stable with Minimum 10μF Ceramic Capacitor
Current Limit with Foldback and Overtemperature
Available in 16-Lead TSSOP, 12-Lead 4mm × 4mm
High Current All Surface Mount Supply
High Efficiency Linear Regulator
Post Regulator for Switching Supplies
Low Parts Count Variable Voltage Supply
Low Output Voltage Power Supplies
FEATURES
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Heat Spreading
n
n
n
n
n
n
(DD-Pak and TO-220 Packages)
n
n
n
n
n
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Protection
n
DFN, 5-Lead TO-220 and 5-Lead Surface Mount
DD-PAK Packages
APPLICATIONS
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TYPICAL APPLICATION
1.5V to 0.9V at 3A Supply (Using 3.3V V CONTROL )
Adjustable 3A
Single Resistor Low
Dropout Regulator
DESCRIPTION
The LT ? 3083 is a 3A low dropout linear regulator that can
be paralleled to increase output current or spread heat on
surface mounted boards. Architected as a precision current
source and voltage follower, this new regulator finds use
in many applications requiring high current, adjustability
to zero, and no heat sink. The device also brings out the
collector of the pass transistor to allow low dropout opera-
tion—down to 310mV—when used with multiple supplies.
A key feature of the LT3083 is the capability to supply a
wide output voltage range. By using a reference current
through a single resistor, the output voltage is programmed
to any level between zero and 23V (DD-PAK and TO-220
packages). The LT3083 is stable with 10μF of capacitance
on the output, and the IC is stable with small ceramic ca-
pacitors that do not require additional ESR as is common
with other regulators.
Internal protection circuitry includes current limiting and
thermal limiting. The LT3083 is offered in the 16-lead
TSSOP (with an exposed pad for better thermal character-
istics), 12-lead 4mm × 4mm DFN (also with an exposed
pad), 5-lead TO-220, and 5-lead surface mount DD-PAK
packages.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Set Pin Current Distribution
N = 1052
V CONTROL
3.3V
4.7μF
V CONTROL
OUT
V IN
1.5V
10μF
IN
LT3083
SET
3083 TA01a
R SET
18.2k
1%
10μF
0.1μF
* R MIN
909?
V OUT = 0.9V
I MAX = 3A
*OPTIONAL FOR
MINIMUM 1mA LOAD
REQUIREMENT
49
49.5 50 50.5
SET PIN CURRENT DISTRIBUTION (μA)
51
3083 TA01b
3083fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3083ET | 制造商:LINER 制造商全称:Linear Technology 功能描述:Adjustable 3A Single Resistor Low Dropout Regulator |
| LT3083ET#PBF | 功能描述:IC REG LDO ADJ 3A TO-220-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:8V 输入电压:10.5 V ~ 23 V 电压 - 压降（标准）:1.7V @ 40mA 稳压器数量:1 电流 - 输出:100mA（最小值） 电流 - 限制（最小）:- 工作温度:0°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:剪切带 (CT) 产品目录页面:1075 (CN2011-ZH PDF) 其它名称:296-24390-1 |
| LT3083ET#TRPBF | 功能描述:IC REG LDO ADJ 3A TO-220-5 RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| LT3083IDF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Adjustable 3A Single Resistor Low Dropout Regulator |
| LT3083IDF#PBF | 功能描述:IC REG LDO ADJ 3A 12-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:2.5V 输入电压:2.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:300mA（最小值） 电流 - 限制（最小）:360mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 供应商设备封装:TSOT-23-5 包装:带卷 (TR) |
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