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参数资料
| 型号： | LTC1753CSW |
| 厂商： | Linear Technology |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC SW REG CNTRLR PENT III 20SOIC |
| 标准包装： | 38 |
| 应用： | 控制器，Intel Pentium? III |
| 输入电压： | 5V |
| 输出数： | 1 |
| 输出电压： | 1.3 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 管件 |
LTC1753
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Supply Voltage
V CC ........................................................................ 7V
PV CC ................................................................... 14V
G2
PV CC
1
2
TOP VIEW
20 G1
19 OUTEN
ORDER PART
NUMBER
V CC
I MAX
I FB
Input Voltage
I FB (Note 2) ............................................ PV CC + 0.3V
I MAX ........................................................ – 0.3V to 9V
All Other Inputs ...................... – 0.3V to (V CC + 0.3V)
Digital Output Voltage ................................. – 0.3V to 9V
I FB Input Current (Notes 2, 3) .......................... – 100mA
Junction Temperature .......................................... 125 ° C
Operating Temperature Range ..................... 0 ° C to 70 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec.)................. 300 ° C
GND 3 18 VID0
SGND 4 17 VID1
5 16 VID2
SENSE 6 15 VID3
7 14 VID4
8 13 PWRGD
SS 9 12 FAULT
COMP 10 11 V FB
G PACKAGE SW PACKAGE
20-LEAD PLASTIC SSOP 20-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 100 ° C/ W (G)
T JMAX = 125 ° C, θ JA = 100 ° C/ W (SW)
LTC1753CG
LTC1753CSW
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V CC = 5V, PV CC = 12V, unless otherwise noted. (Note 3)
SYMBOL
V CC
PARAMETER
Supply Voltage
CONDITIONS
q
MIN
4.5
TYP
MAX
6
UNITS
V
PV CC
V FB
Supply Voltage for G1, G2
Internal Feedback Voltage
1.3V Output Voltage
2.1V Initial Output Voltage
3.5V Initial Output Voltage
q
0.5
0.8
1.34
13.2
V
V
V
V
V OUT
? V OUT
1.3V Initial Output Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
1.3V Initial Output Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
Output Load Regulation
Output Line Regulation
With Respect to Rated Output Voltage (Figure 2)
I OUT = 0 to 14A (Figure 2)
V IN = 4.75V to 5.25V, I OUT = 0 (Figure 2)
q
q
q
q
– 20 (– 1.5%)
– 27 (– 1.5%)
– 42 (– 1.5%)
– 52 (– 1.5%)
– 26 (– 2%)
– 36 (– 2%)
– 56 (– 2%)
– 70 (– 2%)
–5
± 1
20 (+ 1.5%)
27 (+ 1.5%)
42 (+ 1.5%)
52 (+ 1.5%)
26 (+ 2%)
36 (+ 2%)
56 (+ 2%)
70 (+ 2%)
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V PWRGD
Positive Power Good Trip Point
Negative Power Good Trip Point
% Above Output Voltage (Note 4) (Figure 2)
% Below Output Voltage (Note 4) (Figure 2)
q
q
–6
3
–3
6
%
%
V FAULT
I CC
FAULT Trip Point
Operating Supply Current
Shutdown Supply Current
% Above Output Voltage (Note 4) (Figure 2)
OUTEN = V CC = 5V (Note 5)(Figure 3)
OUTEN = 0, VID0 to VID4 Floating (Figure 3)
q
q
q
8
13
800
130
18
1200
250
%
μ A
μ A
I PVCC
Supply Current
PV CC = 12V, OUTEN = V CC (Note 6) (Figure 3)
PV CC = 12V, OUTEN = 0, VID0 to VID4 Floating
15
1
mA
μ A
f OSC
Internal Oscillator Frequency
(Figure 4)
q
250
300
350
kHz
V SAWL
V SAWH
V COMP at Minimum Duty Cycle
V COMP at Maximum Duty Cycle
(Note 11)
(Note 11)
1.8
2.8
V
V
1753fa
2
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