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| 型号： | LT1054CS8#TR |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHD CAP DBL INV 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 切换式电容器（充电泵），倍增器，反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| 输入电压： | 3.5 V ~ 15 V |
| 频率 - 开关： | 25kHz |
| 电流 - 输出： | 100mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
| 其它名称： | LT1054CS8TR |
LT1054/LT1054L
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. (Note 7)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
I LOAD = 0mA
LT1054:
V IN = 3.5V
V IN = 15V
l
l
2.5
3.0
4.0
5.0
mA
mA
LT1054L: V IN = 3.5V
V IN = 7V
l
l
2.5
3.0
4.0
5.0
mA
mA
Supply Voltage Range
Voltage Loss (V IN – |V OUT |)
Output Resistance
LT1054
LT1054L
C IN = C OUT = 100μF Tantalum (Note 4)
I OUT = 10mA
I OUT = 100mA
I OUT = 125mA (LT1054L)
? I OUT = 10mA to 100mA (Note 5)
l
l
l
l
l
l
3.5
3.5
0.35
1.10
1.35
10
15
7
0.55
1.60
1.75
15
V
V
V
V
V
Ω
Oscillator Frequency
Reference Voltage
LT1054: 3.5V ≤ V IN ≤ 15V
LT1054L: 3.5V ≤ V IN ≤ 7V
I REF = 60μA, T J = 25°C
l
l
l
15
15
2.35
2.25
25
25
2.50
40
35
2.65
2.75
kHz
kHz
V
V
Regulated Voltage
Line Regulation
Load Regulation
V IN = 7V, T J = 25°C, R L = 500Ω (Note 6)
LT1054: 7V ≤ V IN ≤ 12V, R L = 500Ω (Note 6)
V IN = 7V, 100Ω ≤ 500 Ω (Note 6)
l
l
–4.70
–5.00
5
10
–5.20
25
50
V
mV
mV
Maximum Switch Current
300
mA
Supply Current in Shutdown
V PIN1 = 0V
l
100
200
μA
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: The absolute maximum supply voltage rating of 16V is for
unregulated circuits using LT1054. For regulation mode circuits using
LT1054 with V OUT ≤ 15V at Pin 5 (Pin 11 on S package), this rating may be
increased to 20V. The absolute maximum supply voltage for LT1054L is 7V.
Note 3: The devices are guaranteed by design to be functional up to the
absolute maximum junction temperature.
Note 4: For voltage loss tests, the device is connected as a voltage inverter,
with pins 1, 6, and 7 (3, 12, and 13 S package) unconnected. The voltage
losses may be higher in other configurations.
Note 5: Output resistance is defined as the slope of the curve, ( ? V OUT vs
? I OUT ), for output currents of 10mA to 100mA. This represents the linear
portion of the curve. The incremental slope of the curve will be higher at
currents <10mA due to the characteristics of the switch transistors.
Note 6: All regulation specifications are for a device connected as a
positive-to-negative converter/regulator with R1 = 20k, R2 = 102.5k,
C1 = 0.002μF, (C1 = 0.05μF S package) C IN = 10μF tantalum, C OUT = 100μF
tantalum.
Note 7: The S8 package uses a different die than the H, J8, N8 and S
packages. The S8 device will meet all the existing data sheet parameters.
See Regulation and Capacitor Selection in the Applications Information
section for differences in application requirements.
1954lfg
3
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