Datasheet

20
LTC1174
LTC1174-3.3/LTC1174-5
1174fe
© LINEAR TECHNOLOGY CORPORATION 1994
LT 1006 REV E • PRINTED IN USA
Battery Charger
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT
®
1074/LT1076 Step-Down Switching Regulator 100kHz, 5A (LT1074) or 2A (LT1076) Monolithic
LTC1147 High Efficiency Step-Down DC/DC Controller 8-Pin Controller
LTC1265 1.2A High Efficiency Step-Down DC/DC Regulator Burst Mode Operation, Monolithic
LT1375/LT1376 1.5A 500kHz Step-Down Switching Regulator High Frequency Small Inductor
LTC1574 High Efficiency Step-Down DC/DC Regulator LTC1174 with Internal Schottky Diode
LT1611 Inverting 1.4MHz Switching Regulator in SOT-23 –5V at 150mA from 5V Input, 1mV
P-P
Output Ripple, SOT-23 Package
LTC1701 1MHz Step-Down DC/DC Converter in SOT-23 V
IN
= 2.5V to 5.5V, I
Q
= 135µA, V
OUT
= 5V to 1.25V
LTC1707 High Efficiency Synchronous Step-Down Regulator V
IN
= 2.85 to 8.5V, Selectable Burst Mode Operation,
600mA Output Current, SO-8 Package
LTC1877 High Efficiency Synchronous Step-Down Regulator 600mA at V
IN
= 5V, 2.65V to 10V = V
IN
, I
Q
= 10µA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
TYPICAL APPLICATIO
U
1174 TA15
INPUT VOLTAGE
8V TO 12.5V
3
LTC1174
LB
IN
LB
OUT
I
PGM
GND
V
IN
SHUTDOWN
V
FB
SW
2
7
6
8
1
5
4
D1
L1
†
50µH
V
OUT
TO
4 NiCAD BATTERY
0.1µF
100µF**
10V
33k
150k
V
IN
(V)
8
9
10
11
12
I
OUT MAX
(mA)
320
325
330
335
335
*
**
D1,D2
†
AVX TAJD226K020
AVX TAJD107K010
= MBRS140T3
(SURFACE MOUNT)
1N5818
L1 SELECTION
MANUFACTURER
COILTRONICS
COILCRAFT
SUMIDA
GOWANDA
PART NO.
CTX50-2P
DT3316-473
CD54-470
GA10-472K
TYPE
SURFACE MOUNT
SURFACE MOUNT
SURFACE MOUNT
THROUGH HOLE
22µF*
20V
×2
D2
+
+