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LT1306ES8 PDF预览

LT1306ES8

更新时间: 2024-01-18 15:00:13
品牌 Logo 应用领域
凌特 - Linear 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
16页 217K
描述
Synchronous, Fixed Frequency Step-Up DC/DC Converter

LT1306ES8 技术参数

是否Rohs认证:不符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.21Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:7 V
最小输入电压:1.8 V标称输入电压:2.5 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:2.3 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BOOST
最大切换频率:415 kHz技术:BIPOLAR
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3.9 mmBase Number Matches:1

LT1306ES8 数据手册

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LT1306  
Synchronous, Fixed Frequency  
Step-Up DC/DC Converter  
U
FEATURES  
DESCRIPTIO  
Output Disconnected from Input During Shutdown  
The LT®1306 is a fully integrated, fixed frequency syn-  
chronous boost converter capable of generating 5V at 1A  
from a Li-Ion cell. The device contains both the main  
power switch and synchronous rectifier on chip and  
automatically disconnects the output from the input in  
shutdown, eliminating the need for external load discon-  
nect circuitry. Additionally, the output remains regulated  
when VIN exceeds VOUT, allowing difficult step-up/step-  
down converter functions to be easily realized using a  
single inductor.  
Output Voltage Remains Regulated  
When VIN > VOUT  
Controlled Input Current During Start-Up  
300kHz Current Mode PWM Operation  
Can Be Externally Synchronized  
Internal 2A Switches  
Operates with VIN as Low as 1.8V  
Automatic Burst Mode Operation at Light Loads  
Quiescent Current: 160µA  
Shutdown Current: 9µA Typ  
The internal 300kHz oscillator of the LT1306 can be easily  
synchronizedtoanexternalclockfrom425kHzto500kHz.  
This allows switching harmonics to be tightly controlled  
and eliminates any beat frequencies that may result from  
amultifrequencysystem.TheLT1306automaticallyshifts  
into power saving Burst ModeTM operation at light loads.  
At heavy loads the LT1306 operates in fixed frequency  
current mode. No-load quiescent current is 160µA and  
reduces to 9µA in shutdown mode.  
U
APPLICATIO S  
Satellite Phones  
Portable Instruments  
Personal Digital Assistants  
Palmtop Computers  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
The LT1306 is available in an SO-8 package.  
Burst Mode is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
D1  
Efficiency  
90  
C1  
1µF  
L1  
10µH  
1-CELL  
Li-Ion  
85  
80  
75  
70  
65  
60  
V
IN  
= 4.2V  
V
SW CAP  
OUT  
IN  
V
= 3.6V  
IN  
5V  
1A  
S/S  
R1  
V
IN  
= 2.6V  
LT1306  
+
768k  
C
IN1  
22µF  
C
IN2  
0.1µF  
FB  
+
V
GND  
C
C
C
O1  
O2  
220µF  
1µF  
V
= 5V  
O
R3  
R2  
249k  
C
C
C
: AVX TAJC226M010  
IN1  
L1 = 10µH  
C
P
118k  
C
Z
68nF  
: AVX TPSE227M010R0100  
O1  
(FIGURE 1)  
68pF  
, C : CERAMIC  
IN1 O2  
C1: AVX TAJA105K020  
D1: MMBD914LT1  
L1: CTX10-2  
1
10  
100  
1000  
LOAD CURRENT (mA)  
1306 F01  
1306 TA01  
Figure 1. Single Li-Ion Cell to 5V Converter  
1

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