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参数资料
| 型号： | LA5681T |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封装： | 7 X 7 MM, TQFP-48 |
| 文件页数： | 15/19页 |
| 文件大小： | 345K |
| 代理商： | LA5681T |
LA5681T
No.A0624-5/19
Pin Functions
Block
Pin No.
Pin
Functions
31
STBY1
Standby input pin
30
IN1-
Error amplifier inverting input pin
29
FB1
Error amplifier output pin
28
CSOFT1
Soft start setting capacitance connection pin
33
CAPH1
Speedup capacitor connection pin for OUT1 pin OFF
34
CAPL1
Speedup capacitor connection pin for OUT1 pin OFF
ch1
40
OUT1
Output pin
27
STBY2
Standby input pin
26
IN2-
Error amplifier inverting input pin
25
FB2
Error amplifier output pin
24
CSOFT2
Soft start setting capacitance connection pin
35
CAPH2
Speedup capacitor connection pin for OUT2 pin OFF
36
CAPL2
Speedup capacitor connection pin for OUT2 pin OFF
ch2
42
OUT2
Output pin
23
STBY3
Standby input pin
22
IN3-
Error amplifier inverting input pin
21
FB3
Error amplifier output pin
20
CSOFT3
Soft start setting capacitance connection pin
ch3
44
OUT3
Output pin
19
STBY4
Standby input pin
18
IN4-
Error amplifier inverting input pin
17
FB4
Error amplifier output pin
16
CSOFT4
Soft start setting capacitance connection pin
ch4
45
OUT4
Output pin
15
STBY5
Standby input pin
14
IN5-
Error amplifier inverting input pin
13
FB5
Error amplifier output pin
12
CSOFT5
Soft start setting capacitance connection pin
ch5
46
OUT5
Output pin
11
STBY6
Standby input pin
10
IN6-
Error amplifier inverting input pin
9
FB6
Error amplifier output pin
8
CSOFT6
Soft start setting capacitance connection pin
ch6
47
OUT6
Output pin
1
CT1
Triangular wave frequency setting capacitance connection pin
2
CT2
Triangular wave frequency setting capacitance connection pin
OSC
4
RT
Triangular wave frequency setting resistance connection pin
6
CTL
Power control pin
38
SCP
Capacitance connection pin for short-circuit detection circuit
Control
48
OC
START-UP circuit (inside IC) drive pin
37
VCC
Supply voltage input pin
5
VBATT
Supply voltage input pin
39
VBIAS1
OUT1 drive supply voltage input pin
41
VBIAS2
OUT2 drive supply voltage input pin
3
VBIAS3
OUT3 to 6 drive supply voltage input pin
32
VREF
Reference voltage output pin
7
GND
GND pin
Power
43
VS
Output circuit GND pin
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