參數(shù)資料
型號： LT1307
廠商： Linear Technology Corporation
英文描述： Micropower 600kHz PWM DC/DC Converters(微功耗,600MHz,脈寬調(diào)制電流模式DC/DC變換器)
中文描述： 微600kHz的PWM直流/直流轉(zhuǎn)換器（微功耗，頻率600MHz，脈寬調(diào)制電流模式的DC / DC變換器）
文件頁數(shù)： 1/20頁
文件大?。?/td> 317K
代理商： LT1307
1
LT1307/LT1307B
Single C ell Micropower
600kHz PWM DC /DC C onverters
DESCRIPTIO
N
U
The LT
1307/LT1307B are micropower, fixed frequency
DC/DC converters that operate from an input voltage as
low as 1V. First in the industry to achieve true current
mode PWM performance from a single cell supply, the
LT1307 features automatic shifting to power saving Burst
Mode operation at light loads. High efficiency is main-
tained over a broad 100
μ
A to 100mA load range. The
LT1307B does not shift into Burst Mode operation at light
loads, eliminating low frequency output ripple at the
expense of light load efficiency. The devices contain a low-
battery detector with a 200mV reference and shut down to
less than 5
μ
A. No load quiescent current of the LT1307 is
50
μ
A and the internal NPN power switch handles a 500mA
current with a voltage drop of just 295mV.
FEATURES
Unlike competitive devices, large electrolytic capacitors
are not requiredwith the LT1307/LT1307B in single cell
applications. The high frequency (600kHz) switching al-
lows the use of tiny surface mount multilayer ceramic
(MLC) capacitors along with small surface mount induc-
tors. The devices work with just 10
μ
F of output capaci-
tance and require only 1
μ
F of input bypassing.
The LT1307/LT1307B are available in 8-lead MSOP, PDIP
and SO packages.
I
Uses Small Ceramic Capacitors
I
50
μ
A Quiescent Current (LT1307)
I
1mA Quiescent Current (LT1307B)
I
Operates with V
IN
as Low as 1V
I
600kHz Fixed Frequency Operation
I
Starts into Full Load
I
Low Shutdown Current: 3
μ
A
I
Low-Battery Detector
I
3.3V at 75mA from a Single Cell
I
Automatic Burst Mode
TM
Operation at
Light Load (LT1307)
I
Continuous Switching at Light Load (LT1307B)
I
Low V
CESAT
Switch: 295mV at 500mA
I
Pagers
I
Cordless Telephones
I
GPS Receivers
I
Battery Backup
I
Portable Electronic Equipment
I
Glucose Meters
I
Diagnostic Medical Instrumentation
APPLICATIO
S
U
Burst Mode is a trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
Single Cell to 3.3V Converter Efficiency
LOAD CURRENT (mA)
0.1
70
E
80
90
1
10
100
1307 TA01
60
50
V
IN
= 1.5V
V
IN
= 1V
V
IN
= 1.25V
V
IN
LBI
SW
FB
LT1307
L1
10
μ
H
D1
LBO
GND
SHDN
V
C
SHUTDOWN
100k
R2
604k
1%
3.3V
75mA
R1
1.02M
1%
680pF
FOR 5V OUTPUT: R1 = 1M, R2 = 329k
C1:MURATA-ERIE GRM235Y5V105Z01
MARCON THCS50E1E105Z
TOKIN 1E105ZY5U-C103-F
C2:MURATA-ERIE GRM235Y5V106Z01
MARCON THCS50E1E105Z
TOKIN 1E106ZY5U-C304-F
L1:COILCRAFT D01608C-103
SUMIDA CD43-100
MURATA ERIE LQH3C100
1307 F01
C1
1
μ
F
C2
10
μ
F
1.5V
CELL
Figure 1. Single Cell to 3.3V Boost Converter
相關(guān)PDF資料
PDF描述
LT1307B Micropower 600kHz PWM DC/DC Converters(微功耗,600MHz,脈寬調(diào)制電流模式DC/DC變換器)
LT1308AIS8 JT 55C 55#22D SKT PLUG
LT1308BIS8 High Current, Micropower Single Cell, 600kHz DC/DC Converters
LT1308A CAPACITOR 3900UF 35V ELECT TSUP
LT1308ACF High Current, Micropower Single Cell, 600kHz DC/DC Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1307B 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Cell Micropower 600kHz PWM DC/DC Converters
LT1307BCMS8 功能描述:IC REG BOOST 3.3V/5V 0.1A 8MSOP 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
LT1307BCMS8#PBF 功能描述:IC REG BOOST 3.3V/5V 0.1A 8MSOP 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
LT1307BCMS8#PBF 制造商:Linear Technology 功能描述:DC-DC CONVERTER BOOST 600KHZ 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BOOST, 600KHZ, 600mA, M
LT1307BCMS8#TR 功能描述:IC REG BOOST 3.3V/5V 0.1A 8MSOP 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
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*