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| 型号： | LT1303IS8-5#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST 5V 0.2A 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 5V |
| 输入电压： | 1.8 V ~ 6 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 200mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°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 |
LT1303/LT1303-5
Micropower High Efficiency
DC/DC Converters with
Low-Battery Detector
Adjustable and Fixed 5V
FEATURES
DESCRIPTIO N
s
s
s
s
s
s
s
s
5V at 200mA from a 2V Input
Supply Voltage As Low As 1.8V
Up to 88% Efficiency
120 μ A Quiescent Current
Low-Battery Detector
Low V CESAT Switch: 170mV at 1A Typ
Uses Inexpensive Surface Mount Inductors
8-Lead PDIP or SO Package
The LT ? 1303/LT1303-5 are micropower step-up high
efficiency DC/DC converters using Burst Mode TM opera-
tion. They are ideal for use in small, low-voltage battery-
operated systems. The LT1303-5 accepts an input voltage
between 1.8V and 5V and converts it to a regulated 5V. The
LT1303 is an adjustable version that can supply an output
voltage up to 25V. Quiescent current is only 120 μ A from
the battery and the shutdown pin further reduces current
to 10 μ A. The low-battery detector provides an open-
APPLICATIO N S
collector output that goes low when the input voltage
drops below a preset level. The on-chip NPN power switch
s
s
s
s
s
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s
EL Panel Drivers
2-Cell and 3-Cell to 5V Conversion
Palmtop Computers
Portable Instruments
Bar-Code Scanners
PDAs
Wireless Systems
has a low 170mV saturation voltage at a switch current
of 1A. The LT1303/LT1303-5 are available in 8-lead PDIP
or SO packages, easing board space requirements.
For higher output current, please see the LT1305 or
LT1302.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO N
L1
22 μ H
1N5817
90
5V Output Efficiency
V IN = 4V
2 CELLS
+
100 μ F
316k
1%
412k
1%
SHUTDOWN
V IN
LBI
SHDN
GND
SW
SENSE
LT1303-5
LBO
PGND
100k
+
100 μ F
V OUT , 5V
200mA
LOW BATTERY
GOES LOW AT
V BAT = 2.2V
80
70
60
50
V IN = 2.5V
V IN = 3V
V IN = 2V
L1 = SUMDIA CD54-220
LT1303 TA02
40
30
Figure 1. 2-Cell to 5V DC/DC Converter with Low-Battery Detect
0.1
1
10
100
1000
LOAD CURRENT (mA)
LT1303 TA01
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1304 | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:MICROPOWER DC/DC CONVERTERS WITH LOW-BATTERY DETECTOR ACTIVE IN SHUTDOWN |
| LT1304-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown |
| LT1304-5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown |
| LT1304CS8 | 功能描述:IC REG BOOST ADJ 0.2A 8SOIC RoHS:否 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 |
| LT1304CS8#PBF | 功能描述:IC REG BOOST ADJ 0.2A 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:MIC23xxx HyperLight Load™ Regulators 标准包装:5,000 系列:HyperLight Load® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.8V 输入电压:2.7 V ~ 5.5 V PWM 型:混合物 频率 - 开关:4MHz 电流 - 输出:2A 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-VFDFN 裸露焊盘，8-MLF? 包装:带卷 (TR) 供应商设备封装:8-MLF?（2x2） 产品目录页面:1094 (CN2011-ZH PDF) 其它名称:576-3303-2 |
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