42007 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC1189
Pin Configuration
Ordering Information
Pin Descriptions
Notes:
(1) Only available in tape and reel packaging. A reel
contains 1000 devices.
(2) Lead free product. This product is fully WEEE and
RoHS compliant.
eciveD
)1(
egakcaPraeniL
egatloV
pmeT
T(egnaR
J
)
RTWS9811CS
42-OSV5.2/V52.1C°521ot°0
TRTWS9811CS
)2(
#niPemaNniPnoitcnuFniP
1DNGAdnuorGlatigiDdnagolanAlangiSllamS
21ETAG1ODLtuptuOevirDetaG
31SODL1ODLroftupnIesneS
42SODL2ODLroftupnIesneS
5CCVegatloVtupnI
6DGRWP egnardilavedistuosiEROC_CCVfiwolsllup,tuptuOdooGrewoP
7NEODL.rotinoMylppuSODL
8-SC)evitagen(tupnIesneStnerruC
9+SC)evitisop(tupnIesneStnerruC
01HDNGPhctiwSediShgiHrofdnuorGrewoP
11HDtuptuOrevirDediShgiH
21LDNGPhctiwSediSwoLrofdnuorGrewoP
31LDtuptuOrevirDediSwoL
41LTSBrevirDediSwoLrofylppuS
51HTSBrevirDediShgiHrofylppuS
61NE
)1(
noitarepolamronrofneporohgiH,retrevnocehtnwodstuhswolcigoL
71ESNESOV.niahckcabdeeflanretnifodnepoT
813DIV
)1(
)BSM(tupnIgnimmargorP
912DIV
)1(
tupnIgnimmargorP
021DIV
)1(
tupnIgnimmargorP
120DIV
)1(
tupnIgnimmargorP
22VM52DIV
)1(
)BSL(tupnIgnimmargorP
32VODLnoitcesODLrofV21+
422ETAG2ODLtuptuOevirDetaG
1
2
3
4
5
6
7
8
GATE2AGND
TOP VIEW
(24 Pin SOIC)
13
14
15
16
LDOVGATE1
VID0
LDOS1
VID1
LDOS2
VID2
VCC
VID3
PWRGD
VID25MV
LDOEN
VOSENSECS-
9
10
22
ENCS+
BSTHPGNDH
21
18
17
19
20
11
12
24
BSTLDH
DLPGNDL
23
Note:
(1) All logic level inputs and outputs are open collector TTL compatible.
5
2007 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC1189
Block Diagram
ERROR
AMP
1.25V FET
CONTROLLER
+
-
CURRENT
LIMIT
OSCILLATOR
70mV
REF
GATE1
VOSENSE
VID2
REF
LDOEN
PWRGD
VID3
VID1
LEVEL SHIFT AND
HIGH SIDE DRIVE
OPEN
COLLECTORS
VID25MV
R
S
Q
+
-
VID0
+
-
+
-
SHOOT-THRU
CONTROL
AGND
2.5V FET
CONTROLLER
D/A
SYNCHRONOUS
MOSFET DRIVE
+
-
LDOS1
CS+ ENCS-VCC
LDOS2GATE2LDOV AGND
PGNDH
BSTH
DL
PGNDL
BSTL
DH
62007 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC1189
Unless specified: 4.75V < VCC < 5.25V; GND = PGND = 0V; VOSENSE = V
O
; 0mV < (CS+-CS-) < 60mV;
= 0°C < T
j
< 85°C
Applications Information - Output Voltage Table
retemaraPsnoitidnoC
DIV
niMpyTxaMstinU
VM520123
egatloVtuptuO
)1(
I
O
tiucricnoitacilppAniA2=00010430.1050.1660.1V
10010950.1570.1190.1
01100480.1001.1711.1
11100801.1521.1241.1
00100331.1051.1761.1
10100751.1571.1391.1
01000281.1002.1812.1
11000702.1522.1342.1
00000132.1052.1962.1
10000652.1572.1492.1
01111182.1003.1023.1
11111503.1523.1543.1
00111033.1053.1073.1
10111453.1573.1693.1
01011973.1004.1124.1
11011404.1524.1644.1
00011824.1054.1274.1
10011354.1574.1794.1
01101874.1005.1325.1
11101205.1525.1845.1
00101725.1055.1375.1
10101155.1575.1995.1
01001485.1006.1616.1
11001906.1526.1146.1
00001436.1056.1766.1
10001856.1576.1296.1
01110386.1007.1717.1
11110807.1527.1247.1
00110337.1057.1867.1
10110757.1577.1397.1
01010287.1008.1818.1
11010897.1528.1258.1
Note 1: VID[3:0] correspond to legacy VRM8.4 voltage levels for 1.3V to 1.8V

SC1189SWTRT

Mfr. #:
Manufacturer:
Semtech
Description:
Switching Controllers PROG SYNCH DC/DC HYST CONTL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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