参数资料
型号: TC2576VAT
元件分类: 稳压器
英文描述: 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5
封装: TO-220, 5 PIN
文件页数: 15/25页
文件大小: 213K
代理商: TC2576VAT
TC2576
22
TC2576-2 12/04/00
3.0A Step-Down Switching Regulator
2001 Microchip Technology Inc.
DS21399A
TYPICAL CHARACTERISTICS (Circuit of Figure 2 Cont.)
V
SAT
,SA
TURA
TION
VOL
TAGE
(V)
2.0
2.5
3.0
4.0
I b
,FEEDBACK
PIN
CURRENT
(nA)
,ST
ANDBY
QUIESCENT
CURRENT
(
A)
I STBY
,INPUT
VOL
TAGE
(V)
SWITCH CURRENT (A)
NORMALIZED
FREQUENCY
(%)
TJ, JUNCTION TEMPERATURE (°C)
Figure 29. Standby Quiescent Current
VIN
Figure 30. Switch Saturation Voltage
Figure 31. Oscillator Frequency
Figure 32. Minimum Operating Voltage
Figure 33. Feedback Pin Current
VIN = 12V
Normalized at
25
°C
TJ = 25°C
Adjustable Version Only
200
180
140
120
100
80
60
40
20
0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
8.0
6.0
4.0
2.0
0
–2.0
–4.0
–6.0
–8.0
–10
5.0
4.5
3.5
1.5
1.0
0.5
0
40
30
25
20
INPUT VOLTAGE (V)
15
10
5
0
0.5
1.0
1.5
2.0
3.0
125
100
75
50
25
0
–25
–50
125
100
75
50
25
0
–25
–50
TJ, JUNCTION TEMPERATURE (°C)
Adjustable Version Only
100
80
60
40
20
0
–20
–40
–60
–80
–100
125
100
75
50
25
0
–25
–50
160
35
2.5
–40
°C
25
°C
125
°C
VOUT
1.23V
ILOAD = 500mA
V IN
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