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参数资料
| 型号： | LT3464ETS8#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 115MA TSOT23-8 |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 34 V |
| 输入电压： | 2.3 V ~ 10 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 115mA |
| 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： | SOT-23-8 薄型，TSOT-23-8 |
| 包装： | 标准包装 |
| 供应商设备封装： | TSOT-23-8 |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
| 其它名称： | LT3464ETS8#TRMPBFDKR |
LT3464
Micropower Boost
Converter with Schottky and
Output Disconnect in ThinSOT?
Tiny Solution Size
Low Quiescent Current
Internal 115mA, 36V Switch
Integrated Schottky Diode
Integrated PNP Output Disconnect with
Internal Reference Override Pin
16V AT 8MA FROM 3.6V INPUT
12V AT 20MA FROM 5V INPUT
INPUT RANGE: 2.3V TO 10V
HIGH OUTPUT VOLTAGE: UP TO 34V
LOW PROFILE (1MM) SOT-23 PACKAGE
OEL PANEL BIAS
LCD BIAS
HANDHELD COMPUTERS
BATTERY BACKUP
DIGITAL CAMERAS
CELLULAR PHONES
FEATURES
s
s
? 25 μ A in Active Mode
? 0.5 μ A in Shutdown Mode
s
s
s
Short-Circuit Protection
s
s
s
s
s
s
APPLICATIO S
s
s
s
s
s
s
TYPICAL APPLICATIO
DESCRIPTIO
THE LT ? 3464 IS A MICROPOWER STEP-UP DC/DC CONVERTER
WITH INTEGRATED SCHOTTKY DIODE AND OUTPUT DISCONNECT
PACKAGED IN AN 8-LEAD LOW PROFILE (1MM) SOT-23. THE
SMALL PACKAGE SIZE, HIGH LEVEL OF INTEGRATION, AND THE USE
OF TINY SMT COMPONENTS YIELD A SOLUTION SIZE OF LESS THAN
40MM 2 . THE LT3464 HAS A TYPICAL CURRENT LIMIT OF 115MA
AS WELL AS FAST SWITCHING SPEED TO ALLOW THE USE OF A CHIP
INDUCTOR AND SMALL CERAMIC CAPACITORS. THE INTERNAL PNP
DISCONNECTS THE OUTPUT LOAD FROM THE INPUT DURING SHUT-
DOWN, AND ALSO PROVIDES OUTPUT SHORT-CIRCUIT PROTECTION.
AN AUXILIARY REFERENCE INPUT ALLOWS THE USER TO OVERRIDE THE
INTERNAL 1.25V FEEDBACK REFERENCE WITH ANY LOWER VALUE,
ALLOWING FULL CONTROL OF THE OUTPUT VOLTAGE DURING OPERA-
TION. THIS DEVICE FEATURES A LOW 25 μ A QUIESCENT CURRENT,
WHICH IS FURTHER REDUCED TO LESS THAN 0.5 μ A IN SHUTDOWN.
A CURRENT LIMITED FIXED OFF-TIME CONTROL SCHEME CONSERVES
OPERATING CURRENT, RESULTING IN HIGH EFFICIENCY OVER A BROAD
RANGE OF OPERATING CURRENT. THE RUGGED 36V SWITCH AND
OUTPUT DISCONNECT CIRCUITRY ALLOW OUTPUTS UP TO 34V TO BE
EASILY GENERATED IN A SIMPLE BOOST TOPOLOGY.
, LTC AND LT ARE REGISTERED TRADEMARKS OF LINEAR TECHNOLOGY CORPORATION.
THINSOT IS A TRADEMARK OF LINEAR TECHNOLGY CORPORATION
V IN
2.3V TO 10V
1 μ F
V IN
CTRL
SHDN
22 μ H
LT3464
SW
OUT
CAP
FB
0.22 μ F
0.33 μ F
V OUT
16V
3.48M
90
80
70
60
50
Efficiency
V IN = 8.4V
V IN = 4.2V
GND
294K
40
3464 TA01A
30
0.01
0.1
1 10
100
LOAD CURRENT (MA)
3464 TA01B
3464f
1
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