参数资料
| 型号： | LT3489EMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 2.5A 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.6 V ~ 40 V |
| 输入电压： | 2.6 V ~ 16 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 2.5A |
| 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-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP-EP |
LT3489
2MHz Boost DC/DC
Converter with 2.5A Switch
and Soft-Start
FEATURES
DESCRIPTIO
■
■
■
■
■
■
■
■
■
2.5A, 0.12 Ω , 40V Internal Switch
2MHz Switching Frequency
Integrated Soft-Start Function
V IN Range: 2.6V to 16V
Adjustable Output from V IN to 40V
Low V CESAT Switch: 110mV at 1A (Typical)
8V at 610mA from a 3.3V Input
Internal or External Loop Compensation
Small 8-Lead MS8E
The LT ? 3489 is a ?xed frequency step-up DC/DC converter
containing an internal 2.5A, 40V switch. The LT3489 is
ideal for large TFT-LCD panel power supplies. The LT3489
switches at 2MHz, allowing the use of tiny, low pro?le
inductors and low value ceramic capacitors. Loop com-
pensation can be either internal or external, giving the
user ?exibility in setting loop compensation and allow-
ing optimized transient response with low ESR ceramic
output capacitors. Soft-start is controlled with an external
capacitor, which determines the input current ramp rate
TFT-LCD Bias Supplies
GPS Receivers
DSL Modems
APPLICATIO S
■
■
■
during start-up.
The 8-lead MS8E package and high switching frequency en-
sure a low pro?le overall solution less than 1.1mm high.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
■
Local Power Supply
TYPICAL APPLICATIO
Low Pro?le, Triple Output TFT Supply (8V, –8V, 23V)
V ON
23V
10mA
90
85
Ef?ciency
0.1 μ F
0.1 μ F
0.1 μ F
80
75
V IN
3.3V
2.2 μ H
AV DD
8V
610mA
70
65
+
OFF ON
4.7 μ F
100nF
V IN
SHDN
SS LT3489
COMP
V C
SW
FB
GND
28.7k
5.23k
20 μ F
2 μ F
60
55 V ON LOAD = 10mA
V OFF LOAD = 20mA
50
0 100 200 300 400 500 600 700
A VDD LOAD CURRENT (mA)
3489 TA01b
37.4k
220pF
0.1 μ F
2 μ F
V OFF
–8V
3489 TA01
20mA
3489f
1
相关PDF资料 |
PDF描述 |
|---|---|
| LT3493IDCB#TRMPBF | IC REG BUCK ADJ 1.2A 6DFN |
| LT3494EDDB#TRPBF | IC REG BOOST ADJ 0.18A 8DFN |
| LT3495EDDB-1#TRMPBF | IC REG BOOST ADJ 0.35A 10DFN |
| LT3501IFE#TRPBF | IC REG BUCK ADJ 3A DL 20TSSOP |
| LT3502IMS#TRPBF | IC REG BUCK ADJ 0.5A 10MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3491 | 制造商:LINER 制造商全称:Linear Technology 功能描述:White LED Driver with Integrated Schottky in SC70 and 2mm × 2mm DFN |
| LT3491EDC | 制造商:LINER 制造商全称:Linear Technology 功能描述:White LED Driver with Integrated Schottky in SC70 and 2mm × 2mm DFN |
| LT3491EDC#PBF | 制造商:Linear Technology 功能描述:IC LED DRVR DFN6 制造商:Linear Technology 功能描述:IC, LED DRVR, DFN6 制造商:Linear Technology 功能描述:IC, LED DRVR, DFN6; Topology:Boost (Step Up); No. of Outputs:1; Output Current:200mA; Output Voltage:32V; Driver Case Style:DFN; Input Voltage Min:2.5V; Input Voltage Max:12V; Dimming Control Type:PWM; Switching Frequency:2.3MHz ;RoHS Compliant: Yes |
| LT3491EDC#TRMPBF | 功能描述:IC LED DRIVER WHITE BCKLGT 6-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
| LT3491EDC#TRPBF | 功能描述:IC LED DRIVER WHITE BCKLGT 6-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
发布紧急采购，3分钟左右您将得到回复。