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LTC1174CS8#TRPBF PDF预览

LTC1174CS8#TRPBF

更新时间: 2024-01-31 02:26:11
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
20页 241K
描述
LTC1174 - High Efficiency Step-Down and Inverting DC/DC Converter; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

LTC1174CS8#TRPBF 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:SOP,
针数:8Reach Compliance Code:compliant
风险等级:5.08模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:CONSTANT OFF TIME
最大输入电压:12 V最小输入电压:4 V
标称输入电压:9 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9025 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:1 A
标称输出电压:1.25 V封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.752 mm
最大供电电流 (Isup):0.6 mA表面贴装:YES
切换器配置:BUCK最大切换频率:200 kHz
技术:CMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)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:30宽度:3.899 mm
Base Number Matches:1

LTC1174CS8#TRPBF 数据手册

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LTC1174  
LTC1174-3.3/LTC1174-5  
ELECTRICAL CHARACTERISTICS  
The  
denotes specifications which apply over the full operating  
temperature range, otherwise specifications are at T = 25°C. V = 9V, V  
= V , I  
= 0V, unless otherwise noted.  
A
IN  
SHUTDOWN  
IN PGM  
SYMBOL PARAMETER  
Output Voltage Load Regulation  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
LTC1174-3.3 (Note 3)  
20mA < I  
20mA < I  
< 175mA, I  
< 400mA, I  
= 0V  
–5  
–45  
–70  
–70  
mV  
mV  
LOAD  
LOAD  
PGM  
PGM  
= V  
IN  
LTC1174-5 (Note 3)  
20mA < I  
20mA < I  
< 175mA, I  
< 400mA, I  
= 0V  
–5  
–50  
–70  
–70  
mV  
mV  
LOAD  
LOAD  
PGM  
PGM  
= V  
IN  
I
Input DC Supply Current (Note 4)  
Active Mode  
Q
LTC1174: 4V < V < 12V, I  
= 0V  
PGM  
450  
450  
600  
600  
µA  
µA  
IN  
PGM  
LTC1174HV: 4V < V < 16V, I  
= 0V  
IN  
Sleep Mode  
LTC1174: 4V < V < 12V  
130  
130  
180  
180  
µA  
µA  
IN  
LTC1174HV: 4V < V < 16V  
IN  
SHUTDOWN (Note 4)  
LTC1174: V  
= 0V, 4V < V < 12V  
1
2
10  
25  
µA  
µA  
SHUTDOWN  
IN  
LTC1174HV: V  
= 0V, 4V < V < 16V  
IN  
SHUTDOWN  
V
Low-Battery Trip Point  
Current into Pin 3  
1.25  
1.4  
0.5  
V
LBTRIP  
I
I
µA  
mA  
mA  
LBIN  
Current Sunk by Pin 2  
LTC1174: V  
= 0.4V  
LBOUT  
LBOUT  
1.0  
0.6  
1.2  
0.8  
1.5  
1.5  
LBOUT  
LTC1174HV: V  
= 0.4V  
V
Comparator Hysteresis  
Current Limit  
LTC1174/LTC1174HV  
7.5  
15  
30  
mV  
HYST  
I
I
I
= V , V  
= 0V  
= 0V  
0.54  
0.27  
0.60  
0.34  
0.83  
0.53  
A
A
PEAK  
PGM  
PGM  
IN OUT  
= 0V, V  
OUT  
R
ON  
ON Resistance of Switch  
LTC1174  
LTC1174HV  
0.75  
0.90  
1.30  
1.55  
t
Switch Off-Time (Note 6)  
SHUTDOWN Pin High  
V
at Regulated Value  
3
4
5
µs  
V
OFF  
OUT  
V
V
Minimum Voltage at Pin 8 for Device to Be Active  
Maximum Voltage at Pin 8 for Device to Be in Shutdown  
LTC1174: V = 12V  
1.2  
IH  
IL  
SHUTDOWN Pin Low  
0.75  
V
I
SHUTDOWN Pin Input Current  
0.5  
2.0  
µA  
µA  
IH  
SHUTDOWN  
SHUTDOWN  
LTC1174HV: V  
= 16V  
I
SHUTDOWN Pin Input Current  
0 V  
0.8V  
SHUTDOWN  
0.5  
µA  
IL  
The  
denotes specifications which apply over the full operating temperature range,  
otherwise specifications are at 40°C T 85°C. LTC1174I and LTC1174HVI Only.  
A
SYMBOL PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
V
Feedback Voltage  
LTC1174I/LTC1174HVI  
1.18  
1.25  
1.31  
V
FB  
I
Current Sunk by Pin 2  
V
V
= 0.4V (LTC1174I)  
= 0.4V (LTC1174HVI)  
0.75  
0.50  
1.2  
0.8  
2.0  
1.6  
mA  
mA  
LBOUT  
LBOUT  
LBOUT  
I
Current Limit  
I
I
= V , V  
= 0V (LTC1174I)  
= 0V (LTC1174I)  
0.54  
0.60  
0.34  
0.84  
A
A
PEAK  
PGM  
PGM  
IN OUT  
OUT  
= 0V, V  
I
I
= V , V  
= 0V (LTC1174HVI)  
= 0V (LTC1174HVI)  
0.5  
0.60  
0.34  
0.86  
A
A
PGM  
PGM  
IN OUT  
= 0V, V  
OUT  
t
Switch Off-Time (Note 6)  
Switch On Resistance  
V
V
at Regulated Value (LTC1174I)  
at Regulated Value (LTC1174HVI)  
2.0  
1.8  
4
4
6.0  
6.2  
µs  
µs  
OFF  
OUT  
OUT  
R
LTC1174I/LTC1174HVI  
0.9  
1.7  
ON  
Note 1: Stresses beyond those listed under Absolute Maximum Ratings  
may cause permanent damage to the device. Exposure to any Absolute  
Maximum Rating condition for extended periods may affect device  
reliability and lifetime.  
Note 2: T is calculated from the ambient temperature T and power  
J A  
dissipation P according to the following formulas:  
D
LTC1174CN8, LTC1174CN8-3.3, LTC1174CN8-5:  
T = T + (P × 110°C/W)  
J
A
D
LTC1174CS8, LTC1174CS8-3.3, LTC1174CS8-5:  
T = T + (P × 150°C/W)  
J
A
D
1174fe  
3

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