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參數(shù)資料
| 型號(hào)： | SC1173 |
| 廠商： | Semtech Corporation |
| 英文描述： | Programmable Synchronous DC/DC Converter With LDO Controller(兼有可編程同步DC/DC控制器和可調(diào)輸出低壓差穩(wěn)壓器) |
| 中文描述： | 可編程同步DC / DC轉(zhuǎn)換器與穩(wěn)壓器控制器（兼有可編程同步直流/直流控制器和可調(diào)輸出低壓差穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大?。?/td> | 227K |
| 代理商： | SC1173 |
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5
2001 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
Block Diagram
SC1172 & SC1173
SYNCHRONOUS
VCC
R
S
Q
+
-
70mV
1.265V
VID0
LDOS
D/A
PWRGOOD
REF
EN
OVP
AGND
+
-
LDOV
OSCILLATOR
LEVEL SHIFT
DRIVE
DL
PGNDL
+
-
+
-
DH
OPEN
VID3
VID2
GATE
BSTH
SHOOT
THRU
CONTROL
+
-
CURRENT LIMIT
VOSENSE
+
-
AGND
VID1
AGND
ERROR
AMP
FET
CONTROLLER
1.5V/ADJ.
CS+
BSTL
VCC
PGNDH
VID4
CS-
Setting LDO Output Voltage.
R
B
R
A
V
T
U
O
O
D
L
V
5
4
5
0
1
2
8
1
V
0
3
5
0
1
9
6
1
V
0
1
2
0
1
7
4
1
V
0
9
0
0
1
0
3
1
V
0
8
0
0
1
1
2
1
V
0
5
0
0
1
6
9
V
0
5
0
0
1
7
1
For the SC1173, the LDO Output voltage must be set by
selecting appropriate resistor values. These values may be
determined from the equation below, or from the table at
right.
error
significan
cause
not
does
term
R
(I
the
that
so
enough
low
be
must
R
ion
clarificat
for
diagram
layout
See
resistor
feedback
Bottom
R
resistor
feedback
Top
R
current
bias
pin
Feedback
=
I
:
where
=
R
I
R
)
R
R
(
265
.
V
A
FB
A
B
A
FB
A
FB
B
B
A
OUT
=
+
+
=
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PDF描述 |
|---|---|
| SC1175 | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW.TR | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175EVB-1 | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175EVB-2 | Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1173CSW | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER WITH LOW DROPOUT REGULATOR CONTROLLER |
| SC1175 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175_04 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Low Power Dual Synchronous DC/DC Controller With Current Sharing Circuitry |
| SC1175CSW TR | 制造商:Semtech Corporation 功能描述:Voltage Mode PWM Controller 2.75V 1A 20-Pin SOIC T/R |
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