參數(shù)資料
型號: MB3885PFV
廠商: FUJITSU LTD
元件分類: 穩(wěn)壓器
英文描述: 1-channel DC/DC Converter IC with Synchronous Rectifier
中文描述: 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO20
封裝: PLASTIC, SSOP-20
文件頁數(shù): 24/29頁
文件大小: 239K
代理商: MB3885PFV
M
2
I
A
+
A
+
+
+
+
+
+
Vo (2 V)
C10
68
μ
F
×
3
C11
2.2
μ
F
D1
Q2
L1
2.7
μ
H
C9
0.1
μ
F
Q1
C2
0.1
μ
F
22
μ
F
C1
4.7
μ
F
C8
D2
CB
VB
OUT1
VS
PGND
OUT2
C12
0.1
μ
F
VCC
5 V Reg.
PWM Comp.1
PWM
Comp.2
Error Amp.
OVP
Comp.
Latch
R
S Q
1.25 V
DTC
VCC
1.47 V
10
μ
A
FB
C3
0.022
μ
F
R1
2 k
R6
2.7 k
Vin
SW1
Output
On/Off
signal
6.2 k
R5
10 k
+
INC
INE
R2
3.3 k
10 k
R3
R4
C4
0.1
μ
F
CS
1.9 V
1.3 V
OSC
bias
VCC
Ref
(2.5 V)
Power
SGND
VREF
C7
0.1
μ
F
RT
R7
10 k
CT
C6
470 pF
UVLO
S
Latch
R
bias
2.1 V
1
μ
A
SCP Comp.
CSCP
C5
0.01
μ
F
Drive2
Drive1
+
+
7
8
6
9
3
4
5
18
17
16
15
14
13
12
11
10
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