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參數(shù)資料
| 型號： | LT1303CN8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Micropower High Efficiency DC/DC Converters with Low-Battery Detector Adjustable and Fixed 5V |
| 中文描述： | 0.75 A SWITCHING REGULATOR, 155 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 280K |
| 代理商： | LT1303CN8 |
1
LT1303/LT1303-5
Micropower High Efficiency
DC/DC Converters with
Low-Battery Detector
Adjustable and Fixed 5V
FEATURES
I
5V at 200mA from a 2V Input
I
Supply Voltage As Low As 1.8V
I
Up to 88% Efficiency
I
120
μ
A Quiescent Current
I
Low-Battery Detector
I
Low V
CESAT
Switch: 170mV at 1A Typ
I
Uses Inexpensive Surface Mount Inductors
I
8-Lead PDIP or SO Package
DESCRIPTIO
N
U
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-
collector output that goes low when the input voltage
drops below a preset level. The on-chip NPN power switch
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.
I
EL Panel Drivers
I
2-Cell and 3-Cell to 5V Conversion
I
Palmtop Computers
I
Portable Instruments
I
Bar-Code Scanners
I
PDAs
I
Wireless Systems
APPLICATIO
S
U
TYPICAL APPLICATIO
N
U
LOAD CURRENT (mA)
0.1
30
E
70
80
90
1
100
10
1000
LT1303 TA01
60
50
40
V
IN
= 2V
V
IN
= 4V
V
IN
= 2.5V
V
IN
= 3V
5V Output Efficiency
V
IN
SW
GND
PGND
SENSE
LBI
LBO
SHDN
LT1303-5
+
+
100k
100
μ
F
SHUTDOWN
412k
1%
100
μ
F
2 CELLS
316k
1%
L1
22
μ
H
1N5817
V
, 5V
200mA
LOW BATTERY
GOES LOW AT
V
BAT
= 2.2V
L1 = SUMDIA CD54-220
LT1303 TA02
Figure 1. 2-Cell to 5V DC/DC Converter with Low-Battery Detect
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1303CN8-5 | Micropower High Efficiency DC/DC Converters with Low-Battery Detector Adjustable and Fixed 5V |
| LT1303CS8 | Micropower High Efficiency DC/DC Converters with Low-Battery Detector Adjustable and Fixed 5V |
| LT1303CS8-5 | Micropower High Efficiency DC/DC Converters with Low-Battery Detector Adjustable and Fixed 5V |
| LT1304-3.3 | Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown(微功耗,3.3V固定輸出電壓,步升DC/DC變換器(關(guān)斷時電池低壓檢測器仍然工作)) |
| LT1304-5 | Micropower DC/DC Converters with Low-Battery Detector Active in Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1303CN8#PBF | 功能描述:IC REG BOOST ADJ 0.2A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1303CN8-5 | 功能描述:IC REG BOOST 5V 0.2A 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LT1303CN8-5#PBF | 功能描述:IC REG BOOST 5V 0.2A 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1303CN8PBF | 制造商:Linear Technology 功能描述:LT1303CN8PBF |
| LT1303CS8 | 功能描述:IC REG BOOST ADJ 0.2A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
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