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LTC3261
Typical Applications
High Voltage to Inverted Low Voltage Charge Pump
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4.5V TO 32V |
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C1 |
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V |
OUT |
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–V – |I |
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4.7µF |
VIN |
VOUT |
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OL –V |
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OUT |
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50V |
EN |
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C4 |
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4.7µF |
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C+ |
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C2 |
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50V |
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D1 |
1µF |
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50V |
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LTC3261 |
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MBR0540 |
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D2 |
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MBR0540 |
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C3 |
D3 |
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1µF |
MBR0540 |
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50V |
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C– |
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RT |
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GND |
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3261 TA07 |
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3261fb
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For more information www.linear.com/3261 |
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LTC3261
Package Description
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
MSE Package
12-Lead Plastic MSOP, Exposed Die Pad
(Reference LTC DWG # 05-08-1666 Rev F)
BOTTOM VIEW OF
EXPOSED PAD OPTION
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2.845 ± 0.102 |
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2.845 ± 0.102 |
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0.889 ± 0.127 |
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(.112 |
± .004) |
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(.112 ± .004) |
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(.035 ± .005) |
1 |
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0.35 |
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REF |
5.23 |
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1.651 ± 0.102 |
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1.651 ± 0.102 |
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3.20 – 3.45 |
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(.065 ± |
.004) |
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0.12 REF |
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(.206) |
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(.065 ± .004) |
(.126 – .136) |
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DETAIL “B” |
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MIN |
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CORNER TAIL IS PART OF |
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DETAIL |
“B” THE LEADFRAME FEATURE. |
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FOR REFERENCE ONLY |
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0.42 ± 0.038 |
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0.65 |
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4.039 ± 0.102 |
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NO MEASUREMENT PURPOSE |
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(.0165 ± .0015) |
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(.0256) |
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± .004) |
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(.159 |
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BSC |
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(NOTE 3) |
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0.406 |
± 0.076 |
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RECOMMENDED SOLDER PAD LAYOUT |
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12 11 10 |
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(.016 ± .003) |
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0.254 |
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DETAIL “A” |
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REF |
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(.010) |
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0° – 6° TYP |
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3.00 ± |
0.102 |
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4.90 ± 0.152 |
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(.118 ± .004) |
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(.193 ± .006) |
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(NOTE 4) |
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0.53 ± 0.152 |
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(.021 ± .006) |
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DETAIL “A” |
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1 |
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4 |
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6 |
0.86 |
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1.10 |
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0.18 |
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(.043) |
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(.034) |
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(.007) |
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MAX |
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REF |
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SEATING |
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PLANE |
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0.22 |
– 0.38 |
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(.009 |
– .015) |
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0.650 |
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NOTE: |
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TYP |
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(.0256) |
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1. DIMENSIONS IN MILLIMETER/(INCH) |
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BSC |
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2.DRAWING NOT TO SCALE
3.DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4.DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5.LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
6.EXPOSED PAD DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH ON E-PAD SHALL NOT EXCEED 0.254mm (.010") PER SIDE.
0.1016 ± 0.0508
(.004 ± .002)
MSOP (MSE12) 0911 REV F
3261fb
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12 |
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For more information www.linear.com/3261 |
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LTC3261 |
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Revision History |
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REV |
DATE |
DESCRIPTION |
|
PAGE NUMBER |
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A |
9/12 |
Changed the Operating Junction Temperature to –55°C to 150°C in the Absolute Maximum section |
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2 |
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Added LTC3261HMSE and LTC3261MPMSE to Order Information table |
|
2 |
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|
Added the word junction to the heading for Electric Characteristics |
|
3 |
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|
Added LTC3261H and LTC3261MP guarantees into Note 2 following LTC3261I sentence |
|
3 |
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|
Deleted Thermal Shutdown curve from Figure 4 |
|
9 |
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|
Changed two paragraphs with respect to operation at 150°C and thermal shutdown |
|
9 |
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Updated Related Parts list |
|
14 |
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B |
1/13 |
Corrected pin number on MODE pin in Pin Functions page |
|
6 |
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|
3261fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. |
13 |
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- |
|
tion that the interconnectionForofmoreits circuitsinformationas describedwwwherein.li earwill.cnotm/3261infringe on existing patent rights. |
LTC3261
Typical Application
24V to –24V Inverter
C2
1µF
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8 |
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5 |
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C+ |
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C– |
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24V |
9 |
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VIN |
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VOUT |
4 |
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–24V |
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C1 |
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C3 |
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10µF |
10 |
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LTC3261 |
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10µF |
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EN |
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11 |
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MODE |
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|||||
GND
13
3261 TA03
Related Parts
PART NUMBER |
DESCRIPTION |
COMMENTS |
|
|
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|
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|
||
LT1054/LT1054L |
Switched-Capacitor Voltage Converters with Regulator |
VIN: |
3.5V to 15V/7V, IOUT = 100mA/125mA, N8, S08, |
||
|
|
SO16 Packages |
|
|
|
LTC1144 |
Switched-Capacitor Wide Input Range Voltage Converter |
Wide Input Voltage Range: 2V to 18V, ISD < 8µA, |
|||
|
with Shutdown |
SO8 Package |
|
|
|
LTC1514/LTC1515 |
Step-Up/Step-Down Switched-Capacitor DC/DC |
VIN: |
2V to 10V, VOUT: 3.3V to 5V, IQ = 60µA, SO8 Package |
||
|
Converters |
|
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|
|
LT®1611 |
150mA Output, 1.4MHz Micropower Inverting Switching |
V : |
0.9V to 10V, V |
OUT |
= ±34V, ThinSOT™ Package |
|
Regulator |
IN |
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LT1614 |
250mA Output, 600kHz Micropower Inverting Switching |
VIN: |
0.9V to 6V, VOUT = ±30V, IQ = 1mA, MS8, SO8 Packages |
||
|
Regulator |
|
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|
|
LTC1911 |
250mA, 1.5MHz Inductorless Step-Down DC/DC |
VIN: |
2.7V to 5.5V, VOUT = 1.5V/1.8V, IQ = 180µA, |
||
|
Converter |
MS8 Package |
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|
LTC3250/LTC3250-1.2/ |
Inductorless Step-Down DC/DC Converters |
VIN: |
3.1V to 5.5V, VOUT = 1.2V, 1.5V, IQ = 35µA, |
||
LTC3250-1.5 |
|
ThinSOT Package |
|
|
|
LTC3251 |
500mA Spread Spectrum Inductorless Step-Down DC/DC |
VIN: |
2.7V to 5.5V, VOUT: 0.9V to 1.6V, 1.2V, 1.5V, IQ = 9µA, MS10E |
||
|
Converter |
Package |
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|
|
LTC3252 |
Dual 250mA, Spread Spectrum Inductorless Step-Down |
VIN: |
2.7V to 5.5V, VOUT: 0.9V to 1.6V, IQ = 50µA, |
||
|
DC/DC Converter |
DFN12 Package |
|
|
|
LTC3260 |
Low Noise Dual Supply Inverting Charge Pump |
VIN: |
4.5V to 32V, VOUT |
= –VIN, IOUT = 100mA, FOSC = 50kHz to |
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500kHz, VLDO+ = 1.2V to 32V, ILDO+ = 50mA, VLDO– = –1.2V to –32V, |
|||
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ILDO– = 50mA, DE14 and MSE16 Packages |
|||
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3261fb |
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||||
|
Linear Technology Corporation |
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|
||||
14 |
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LT 0113 REV B • PRINTED IN USA |
|
1630 McCarthy Blvd., Milpitas, CA 95035-7417 |
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|||||
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||||||
(408)432-1900 |
● |
FAX: (408) 434-0507 |
● |
For more information www.linear.com/3261 |
LINEAR TECHNOLOGY CORPORATION 2012 |
||
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|
www.linear.com/3261 |
||||