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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： | 15/26页 |
| 文件大小： | 322K |
| 代理商： | L5994A |
Obsolete
Product(s)
- Obsolete
Product(s)
L5994 - L5994A
22/26
Component list
Table shows the complete L5994/ L5994A Evaluation Kit parts list. Critical components characteristics are given in detail.
Resistors
R1,R2,R3,R4
0.02
1W - 1% DALE WSL-2512
SMD - 2512
R5
5.6k
0.1W - 1%
SMD - 0603
R6
3.3k
0.1W - 1%
SMD - 0603
R7,R8
3.9k
0.1W - 1%
SMD - 0603
R9,R15
47k
0.1W
SMD - 0603
R10,R11,R12,R13,R14
1M
0.1W
SMD - 0603
R16
4.7
1/4W
SMD - 1206
R17,R18,R19,R20
N.C.
0.1W
SMD - 0603
R21,R22,R23,R24
2
1/4W
SMD - 0603
R25
8.2K
1/4W
SMD - 0603
R26
2.2K
1/4W
SMD – 0603
R27
0
1/4W
SMD – 0603
R28
1K
1/4W
SMD - 0603
R33,R34
4.7
1/4W
SMD - 1206
Capacitors
C1,C4
47
SANYO - OS-CON 25V -
25SC47M
Radial 10 - 5
C2,C6
1
Ceramic 25V
SMD - 1206
C3,C7,C8,C20
1
Ceramic
SMD - 1206
C9,C15
N.C.
TANTD
C10,C11,C13,C14
330
KEMET 10V - T510
TANTD
C16,C17,C23
100n
Ceramic
SMD - 0603
C18,C19
22n
Ceramic
SMD - 0603
C21,C27
4.7
Tantalium 16V
SMD - 3528
C22,C24
100n
Ceramic
SMD - 0603
C25
N.C.
Radial 8 - 2.5
C26 (L5994A only)
15
SANYO - OS-CON 25V -
25SC15M
Radial 8 - 2.5
C28,C29
N.C.
Ceramic
SMD - 0603
C30,C31
47n
Ceramic
SMD - 0603
Magnetics
T1
10
Transpower Technologies
TTI5870
(only for L5994A)
L1
10
SUMIDA CDR125-100 (only for
L5994)
L2
10
SUMIDA CDR125-100
Transistors Q1,Q2
SI4410
SO8
Q3,Q4
SI4410
SO8
Q5
BC807
SOT23
Diodes
D1,D2
STPS340S
SMC
D3,D4
BAR18
SOT23
D5
N.C.
SMA
D6 (L5994A only)
STPR120A
SMA
IC
U1
L5994/
L5994A
TQFP32
Jumper
G1
SHORTED
G2,G3,G4
OPEN
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