LTC1878EMS8 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1878EMS8' PDF : 16 Pages View PDF
LTC1878
TYPICAL APPLICATIO
Single Li-Ion to 2.5V/0.5A Regulator with Precision 2.7V Undervoltage Lockout
1.58M
1%
1.18M
1%
LTC1540
1
8
GND OUT
2 V–
V+ 7
3 IN+
6
REF
4 IN–
5
HYS
44.2k
1%
2.37M
1%
0.1µF
10k
220pF
0.01µF
LTC1878
1
RUN
8
PLL LPF
2
7
ITH SYNC/MODE
3
VFB
6
VIN
4
GND
5
SW
10µH*
20pF 887k
*TOKO D62CB A920CY-100M
**TAIYO-YUDEN CERAMIC JMK325BJ226MM
412k
1878 TA08
COUT**
22µF
CER
VOUT
2.5V
0.6A
CIN**
22µF
CER
VIN
2.7V TO 4.2V
PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.
MS8 Package
8-Lead Plastic MSOP
(LTC DWG # 05-08-1660)
0.007
(0.18)
0° – 6° TYP
0.040 ± 0.006
(1.02 ± 0.15)
0.021 ± 0.006
(0.53 ± 0.015)
SEATING
PLANE
0.012
(0.30)
REF
0.0256
(0.65)
BSC
0.034 ± 0.004
(0.86 ± 0.102)
0.006 ± 0.004
(0.15 ± 0.102)
* DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH,
PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
0.118 ± 0.004*
(3.00 ± 0.102)
0.193 ± 0.006
(4.90 ± 0.15)
8 76 5
0.118 ± 0.004**
(3.00 ± 0.102)
1 234
MSOP (MS8) 1098
RELATED PARTS
PART NUMBER
LTC1174/LTC1174-3.3
LTC1174-5
LTC1265
LTC1474/LTC1475
LTC1504A
LTC1622
LTC1626
DESCRIPTION
High Efficiency Step-Down and Inverting DC/DC Converters
1.2A, High Efficiency Step-Down DC/DC Converter
Low Quiescent Current Step-Down DC/DC Converters
Monolithic Synchronous Step-Down Switching Regulator
Low Input Voltage Current Mode Step-Down DC/DC Controller
Low Voltage, High Efficiency Step-Down DC/DC Converter
LTC1627
Monolithic Synchronous Step-Down Switching Regulator
LTC1701
Monolithic Current Mode Step-Down Switching Regulator
LTC1707
Monolithic Synchronous Step-Down Switching Regulator
LTC1772
LTC1877
Low Input Voltage Current Mode Step-Down DC/DC Controller
High Efficiency Monolithic Step-Down Regulator
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
COMMENTS
Monolithic Switching Regulators, IOUT to 450mA,
Burst Mode Operation
Constant Off-Time, Monolithic, Burst Mode Operation
Monolithic, IOUT to 250mA, IQ = 10µA, 8-Pin MSOP
Low Cost, Voltage Mode IOUT to 500mA, VIN from 4V to 10V
High Frequency, High Efficiency, 8-Pin MSOP
Monolithic, Constant Off-Time, IOUT to 600mA,
Low Supply Voltage Range: 2.5V to 6V
Constant Frequency, IOUT to 500mA, Secondary Winding
Regulation, VIN from 2.65V to 8.5V
Constant Off-Time, IOUT to 500mA, 1MHz Operation,
VIN from 2.5V to 5.5V
1.19V VREF Pin, Constant Frequency, IOUT to 600mA,
VIN from 2.65V to 8.5V
550kHz, 6-Pin SOT-23, IOUT Up to 5A, VIN from 2.2V to 10V
550kHz, MS8, VIN Up to 10V, IQ = 10µA, IOUT to 600mA
1878f LT/TP 1000 4K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2000
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