Datasheet
LTC1960
28
1960fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2001
LT 0411 REV B • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1505 High Efficiency Battery Charger Up to 97% Efficiency; AC Adapter Current Limit
LTC1628-PG 2-Phase, Dual Synchronous Step-Down Controller Minimizes C
IN
and C
OUT
; Power Good Output; 3.5V ≤ V
IN
≤ 36V
LTC1709 2-Phase, Dual Synchronous Step-Down Controller
with VID
Up to 42A Output; Minimum C
IN
and C
OUT
; Uses Smallest Components for Intel
and AMD Processors
LTC3711 No R
SENSE
™ Synchronous Step-Down Controller
with VID
3.5V ≤ V
IN
≤ 36V; 0.925V ≤ V
OUT
≤ 2V; for Transmeta, AMD and Intel Mobile
Processors
LTC1759 SMBus Controlled Smart Battery Charger Synchronous Operation for High Efficiency; Integrated SMBus Accelerator;
AC Adapter Current Limit
LT1769 2A Battery Charger Constant-Current/Constant-Voltage Switching Regulator; Input Current Limiting
Maximizes Charge Current
24
29
3
2
20
19
21
18
17
25
35
36
34
33
13
28
16
CB1
0.01µF
CB2
0.1µF
C3
0.01µF
R6
100Ω
R7
49.9k
1%
R5
1k
1%
R4
14k
1%
C5
0.15µF
CL
20µF
25V
C7
0.1µF
R9
3.3k
1%
D2
1
7
6
9
8
11
10
5
4
12
22
23
14
15
30
31
32
27
26
C4
0.1µF
QBG
QTG
L1
10µH
4A
R
SNS
0.025Ω
1%
C
IN
20µF
25V
C
OUT
20µF 25V
CLP
DCIN
BAT1
BAT2
MISO
SCK
MOSI
SSB
DCDIV
COMP1
GCH2
SCH2
GCH1
SCH1
VSET
VCC
GND
LTC1960
VPLUS
GDCI
GDCO
GB1I
GB1O
GB2I
GB2O
SCP
SCN
LOPWR
CSN
CSP
ITH
ISET
SW
BOOST
TGATE
BGATE
PGND
R1
5.1k
1%
R2
649k
1%
R3
100k
1%
R
CL
0.03
R
SC
0.02Ω
SSB
BAT2
BAT1
V
IN
SCK
MOSI
MISO
C1
0.1µF
C2
1µF
Q1
Q2
Q6
Q5
Q7
Q8
Q4
Q3
1960 TA02
LOAD
Q9
Q10
C9
100pF
C6
1µF
Q1, Q2, Q5, Q6, Q7, Q8: Si4925DY
Q3, Q4, Q9, Q10, QTG, QBG: FDS6912A
D1: MBR130T3
D2: CMDSH-3 TYPE
D3, D4: BAT54A TYPE
PowerPath MUX
CHARGE MUX
V
DD
4.7k
D1
100Ω
C8
0.1µF
R11
1k
BAT2
BAT1
D4
D3
C6
2µF
Dual Battery Selector and 4A Charger
(LTC1960CG Pin Numbers Shown)