参数资料
型号: LTC1159CG-5#PBF
厂商: Linear Technology
文件页数: 4/20页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 20-SSOP
标准包装: 66
PWM 型: 电流模式
输出数: 1
频率 - 最大: 250kHz
占空比: 100%
电源电压: 4 V ~ 40 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
包装: 管件
LTC1159
LTC1159-3.3/LTC1159-5
ELECTRICAL C HARA C TERISTICS
Note 6: The LTC1159C, LTC1159C-3.3, and LTC1159C-5 are not tested
and not quality assurance sampled at – 40 ° C and 85 ° C. These
specifications are guaranteed by design and/or correlation. The LTC1159I,
LTC1159I-3.3 and LTC1159I-5 are guaranteed and tested over the – 40 ° C
to 85 ° C operating temperature range.
Note 7: The logic-level power MOSFETs shown in Figure 1 are rated for
V DS(MAX) = 30V. For operation at V IN > 30V, use standard threshold
MOSFETs with EXTV CC powered from a 12V supply. See Applications
Information.
TYPICAL PERFOR A CE CHARACTERISTICS
Efficiency vs Input Voltage
Line Regulation
Load Regulation
100
FIGURE 1 CIRCUIT
I LOAD = 1A
60
40
FIGURE 1 CIRCUIT
I LOAD = 1A
20
0
FIGURE 1 CIRCUIT
V IN = 24V
95
20
–20
90
NOTE 6
0
NOTE 6
–40
85
–20
–40
–60
–80
80
0
5
10
15 20
25 30
35
40
–60
0
5
10
15
20
25
30
35
40
–100
0
0.5
1.0 1.5 2.0
2.5
INPUT VOLTAGE (V)
EXTV CC Pin Current
LTC1159 ? TPC01
INPUT VOLTAGE (V)
V IN Pin Current
LT1159 ? TPC02
LOAD CURRENT (A)
Operating Frequency
vs (V IN – V OUT )
LTC1159 ? TPC03
10
8
6
FIGURE 1 CIRCUIT
I LOAD = 1A
500
400
300
FIGURE 1 CIRCUIT
2.0
1.5
V OUT = 5V
T = 0 ° C
T = 70 ° C
T = 25 ° C
4
NOTE 6
200
NORMAL
NOTE 6
1.0
2
I LOAD = 100mA
I LOAD = 0
100
V SHDN2 = 2V
0.5
0
0
5
10
15
20
25
30
35
40
0
0
5
10
15
20
25
30
35
40
0
0
5
10
15
20
25
4
INPUT VOLTAGE (V)
LTC1159 ? TPC04
INPUT VOLTAGE (V)
LTC1159 ? TPC05
(V IN – V OUT ) VOLTAGE (V)
LTC1159 ? TPC06
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