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参数资料
| 型号： | L5994A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封装： | TQFP-32 |
| 文件页数： | 13/26页 |
| 文件大小： | 322K |
| 代理商： | L5994A |
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side and power traces on the other side.
7) Use heavy copper traces: this will reduce their resistance, increasing overall efficiency and will improve
their heat-sinking ability.
L5994 Evaluation Kit
The L5994 Evaluation kit is a fully assembled and tested demonstration board that implements a standard ap-
plication circuit, configured according to the following specifications:
Input Voltage Range: 5V to 25V;
3.3V Output: Iout3 = 3A;
5.1V Output: Iout5 = 3A;
12V Output: Iout12 = 50mA;
Switching frequency: fSW = 300kHz.
Figure 7. L5994 Evaluation kit
18
L5994
20
19
28
27
26
25
24
3
2
VIN
1
29
6
5
13
7
22
4
32
14
11
16
31
21
30
15
VOUT3
LIN
VOUT1
VOUT2
8
9
17
12
C21
C23
C24
C22
PWROK2
R7
C19
C13
C14
C15
R3
R4
L2
D2
Q4
Q3
C17
C4
C8
D4
C27
C18
R5
C9
C10
C11
R1
R2
L1
D1
Q2
C1
C7
Q1
D3
C16
C2
R6
R8
23
C6
C3
+5VIN
10
R34
R16
R9
R33
GND
D98IN866B
H1STRAP
H1GATE
H1SRC
PREG5
R1GATE
I1SNS
V1SNS
V5SW
COMP1
H2STRAP
H2GATE
H2SRC
R2GATE
PGND
I2SNS
VDRLIN
V2SNS
COMP2
PWROK2
VFBLIN
SOFT1
SOFT2
CRST
VREF
SREG5
VIN
SGND
G1
G2
GND
R19
R20
NOSKIP
R13
R12
R11
R10
R14
S2S1S3
S4
C20
R15
PWROK1
OSC
RUN2
NOSKIP
RUN1
R25
R26
PWROK1
C30
C31
R28
R21
R22
R23
R24
C26
Vin2
D6
R17
C28
Vin2
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