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LT1054C 参数 Datasheet PDF下载

LT1054C图片预览
型号: LT1054C
PDF下载: 下载PDF文件 查看货源
内容描述: 与监管机构的开关电容电压转换器 [SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS]
分类和应用: 转换器开关
文件页数/大小: 26 页 / 442 K
品牌: TI [ TEXAS INSTRUMENTS ]
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ꢆꢇ ꢈ ꢁꢉ ꢊꢋꢌꢍꢉ ꢎꢏꢎꢉꢈ ꢁꢐ ꢑ ꢒꢐ ꢀꢁꢎꢓ ꢋ ꢉꢐ ꢔ ꢒꢋ ꢑꢁ ꢋꢑ  
ꢇ ꢈꢁ ꢊ ꢑꢋꢓ ꢕ ꢀꢎꢁꢐ ꢑ  
SLVS033F − FEBRUARY 1990 − REVISED NOVEMBER 2004  
electrical characteristics over recommended operating conditions (unless otherwise noted)  
LT1054C  
LT1054I  
PARAMETER  
TEST CONDITIONS  
UNIT  
T
A
MIN TYP  
MAX  
−5.2  
25  
V
O
Regulated output voltage  
Input regulation  
V
CC  
V
CC  
V
CC  
= 7 V, T = 25°C, R = 500 , See Note 5  
25°C  
−4.7  
−5  
5
V
J
L
= 7 V to 12 V, R = 500 , See Note 5  
Full range  
Full range  
mV  
mV  
L
Output regulation  
= 7 V, R = 100 to 500 , See Note 5  
10  
50  
L
I
= 10 mA  
0.35  
1.1  
10  
0.55  
1.6  
Voltage loss,  
O
O
C = C = 100-µF tantalum  
Full range  
V
I
O
V
CC  
− |V (see Note 6)  
O
I
= 100 mA  
Output resistance  
I = 10 mA to 100 mA,  
O
See Note 7  
Full range  
Full range  
25°C  
15  
Oscillator frequency  
V
CC  
= 3.5 V to 15 V  
15  
2.35  
2.25  
25  
35  
kHz  
2.5  
2.65  
2.75  
V
ref  
Reference voltage  
I
= 60 µA  
V
(REF)  
Full range  
25°C  
Maximum switch current  
300  
2.5  
3
mA  
V
V
= 3.5 V  
= 15 V  
4
5
CC  
I
Supply current  
I = 0  
O
Full range  
Full range  
mA  
CC  
CC  
Supply current in shutdown  
V
= 0 V  
100  
200  
µA  
(FB/SD)  
Full range is 0°C to 70°C for the LT1054C and −40°C to 85°C for the LT1054I.  
All typical values are at T = 25°C.  
A
NOTES: 5. All regulation specifications are for a device connected as a positive-to-negative converter/regulator with R1 = 20 k, R2 = 102.5 k,  
external capacitor C = 10 µF (tantalum), external capacitor C = 100 µF (tantalum) and C1 = 0.002 µF (see Figure 15).  
IN OUT  
6. For voltage-loss tests, the device is connected as a voltage inverter, with terminals 1, 6, and 7 unconnected. The voltage losses  
may be higher in other configurations. C and C are external capacitors.  
IN OUT  
7. Output resistance is defined as the slope of the curve (V versus I ) for output currents of 10 mA to 100 mA. This represents  
O
O
the linear portion of the curve. The incremental slope of the curve is higher at currents less than 10 mA due to the characteristics  
of the switch transistors.  
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
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