参数资料
| 型号： | LT1961IMS8E#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.5A 8MSOP |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.2 V ~ 35 V |
| 输入电压： | 3 V ~ 25 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.25MHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-MSOP-EP |
LT1961
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T A = 25 ° C. V IN = 15V, V C = 0.8V, SHDN, SYNC and switch open unless otherwise noted.
PARAMETER
FB Input Current
FB to V C Voltage Gain
CONDITION
0.4V < V C < 0.9V
●
MIN
0
150
TYP
– 0.2
350
MAX
– 0.4
UNITS
μ A
FB to V C Transconductance
V C Pin Source Current
V C Pin Sink Current
Δ I VC = ± 10 μ A
V FB = 1V
V FB = 1.4V
●
●
●
500
– 85
70
850
– 120
110
1300
– 165
165
μ Mho
μ A
μ A
V C Pin to Switch Current Transconductance
2.4
A/V
V C Pin Minimum Switching Threshold
V C Pin 1.5A I SW Threshold
Duty Cycle = 0%
0.3
0.9
V
V
Maximum Switch Duty Cycle
V C = 1.2V, I SW = 100mA
V C = 1.2V, I SW = 1A, 25 ° C ≤ T A ≤ 125 ° C
V C = 1.2V, I SW = 1A, T A ≤ 25 ° C
●
80
75
70
90
80
75
%
%
%
SHDN Threshold Voltage
●
1.28
1.35
1.42
V
SHDN Input Current (Shutting Down)
SHDN Threshold Current Hysteresis
SHDN = 60mV Above Threshold
SHDN = 100mV Below Threshold
●
–7
4
–10
7
–13
10
μ A
μ A
SYNC Threshold Voltage
SYNC Input Frequency
1.5
1.5
2.2
2
V
MHz
SYNC Pin Resistance
I SYNC = 1mA
20
k Ω
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 3: Minimum input voltage is defined as the voltage where the
internal regulator enters lockout. Actual minimum input voltage to
maintain a regulated output will depend on output voltage and load
current. See Applications Information.
Note 2: The LT1961E is guaranteed to meet performance specifications
from 0 ° C to 125 ° C junction temperature. Specifications over the – 40 ° C to
125 ° C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LT1961I is guaranteed over the – 40oC to 125oC operating junction
temperature range.
1961fa
3
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