参数资料
型号: LT1185CQ
厂商: Linear Technology
文件页数: 1/16页
文件大小: 0K
描述: IC REG LDO NEG ADJ 3A DDPAK-5
标准包装: 50
稳压器拓扑结构: 负,可调式
输出电压: -2.5 V ~ -25 V
输入电压: -4.2 V ~ -35 V
电压 - 压降(标准): 0.67V @ 3A
稳压器数量: 1
电流 - 输出: 3A
电流 - 限制(最小): 可调式
工作温度: 0°C ~ 70°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: D2PAK-5
包装: 管件
LT1185
Low Dropout Regulator
FEATURES
Low Resistance Pass Transistor: 0.25 ?
Dropout Voltage: 0.75V at 3A
± 1% Reference Voltage
Accurate Programmable Current Limit
Shutdown Capability
Internal Reference Available
Full Remote Sense
Low Quiescent Current: 2.5mA
Good High Frequency Ripple Rejection
Available in 5-Lead TO-220 and DD Packages
The LT1185 uses a saturation-limited NPN transistor as
the pass element. This device gives the linear dropout
characteristics of a FET pass element with significantly
less die area. High efficiency is maintained by using special
anti-saturation circuitry that adjusts base drive to track
load current. The “on resistance” is typically 0.25 ? .
Accurate current limit is programmed with a single 1/8W
external resistor, with a range of zero to three amperes. A
second, fixed internal limit circuit prevents destructive
currents if the programming current is accidentally over-
DESCRIPTIO
The LT ? 1185 is a 3A low dropout regulator with adjustable
current limit and remote sense capability. It can be used as
a positive output regulator with floating input or as a
standard negative regulator with grounded input. The
output voltage range is 2.5V to 25V, with ± 1% accuracy on
the internal reference voltage.
TYPICAL APPLICATIO
5V, 3A Regulator with 3.5A Current Limit
ranged. Shutdown of the regulator output is guaranteed
when the program current is less than 1 μ A, allowing
external logic control of output voltage.
The LT1185 has all the protection features of previous
LTC regulators, including power limiting and thermal
shutdown.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Dropout Voltage
+
+
2 μ F
TANT
R LIM *
4.3k
2.37k
+
1.6
1.4
V IN
1.2
6V TO 16V
REF
GND
FB
+
2 μ F
TANT
V OUT
5V AT 3A
1.0
T J = 25 ° C
V IN
LT1185
V OUT
2.67k
LT1185 ? TA01
0.8
0.6
0.4
T J = 125 ° C
T J = –55 ° C
0.2
*CURRENT LIMIT = 15k/R LIM = 3.5A
0
0
1
2
3
4
LOAD CURRENT (A)
LT1185 ? TA02
1185ff
1
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LT1185CQ#PBF 功能描述:IC REG LDO NEG ADJ 3A DDPAK-5 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:3V 输入电压:最高 5.5V 电压 - 压降(标准):0.12V @ 150mA 稳压器数量:1 电流 - 输出:150mA(最小值) 电流 - 限制(最小):220mA 工作温度:-40°C ~ 125°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) 其它名称:ADP160AUJZ-3.0-R7TR
LT1185CQ#TR 功能描述:IC REG LDO NEG ADJ 3A DDPAK-5 RoHS:否 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:3V 输入电压:2.3 V ~ 5.5 V 电压 - 压降(标准):0.035V @ 150mA 稳压器数量:2 电流 - 输出:150mA 电流 - 限制(最小):300mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-UFDFN 裸露焊盘,6-TMLF? 供应商设备封装:6-TMLF?(1.6x1.6) 包装:Digi-Reel® 产品目录页面:1104 (CN2011-ZH PDF) 其它名称:576-3018-6
LT1185CQ#TRPBF 功能描述:IC REG LDO NEG ADJ 3A DDPAK-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:3V 输入电压:2.3 V ~ 5.5 V 电压 - 压降(标准):0.035V @ 150mA 稳压器数量:2 电流 - 输出:150mA 电流 - 限制(最小):300mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-UFDFN 裸露焊盘,6-TMLF? 供应商设备封装:6-TMLF?(1.6x1.6) 包装:Digi-Reel® 产品目录页面:1104 (CN2011-ZH PDF) 其它名称:576-3018-6
LT1185CQPBF 制造商:Linear Technology 功能描述:LDO Regulator Neg/Pos 2.5-25V 3A DDPAK6
LT1185CT 功能描述:IC REG LDO NEG ADJ 3A TO220 RoHS:否 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:3V 输入电压:2.3 V ~ 5.5 V 电压 - 压降(标准):0.035V @ 150mA 稳压器数量:2 电流 - 输出:150mA 电流 - 限制(最小):300mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-UFDFN 裸露焊盘,6-TMLF? 供应商设备封装:6-TMLF?(1.6x1.6) 包装:Digi-Reel® 产品目录页面:1104 (CN2011-ZH PDF) 其它名称:576-3018-6