LTC1262 Linear Technology, LTC1262 Datasheet
LTC1262
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LTC1262 Summary of contents
Page 1
... The TTL compatible shutdown pin can be directly con- nected to a microprocessor and reduces the supply cur- rent to less than 0.5 A. The LTC1262 offers improved shutdown current performance and requires fewer exter- nal components than competing solutions. The LTC1262 is available in an 8-pin PDIP or SO-8 package ...
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... Input Voltage (SHDN) ................... – 0. Output Current (I ) ........................................... 50mA OUT Operating Temperature Range LTC1262C................................................ LTC1262I........................................... – Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 C ELECTRICAL CHARACTERISTICS V = 4.75V to 5.5V – (Notes 2, 3), unless otherwise noted. ...
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... GND for normal operation. In shutdown mode the V CC charge pump is turned off and V to ground. IN LTC1262 Shutdown Supply Current vs Temperature 3 3.0 2.4 1.8 1.2 0.6 0 –50 – 100 TEMPERATURE ( C) LTC1262 G02 Output Voltage vs Output Current 12.2 12 4.75V CC 11.8 11 5. 11.2 11.0 10.8 10.6 10.4 10 OUTPUT CURRENT (mA) 1262 G04 to ground ...
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... C OUT R2 V DIV R3 BANDGAP REFERENCE S2 OSCILLATOR GND LTC1262 • BD < V – BGAP HYST 1 8 – C1 SHDN V SHUTDOWN GND C OUT LTC1262 4 – OUT 4.75V TO 5V Figure 2. LTC1262 Timing Circuit V OUT LTC1262 • F02 ...
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... The gates of all internal switches are HYST driven between V and GND. An internal diode ensures OUT that the LTC1262 will start up under load by charging C to one diode drop below reduce supply current the LTC1262 may be put into shutdown mode by floating the SHDN pin or taking ...
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... SENSE 14 Q5 NDRIVE Si9410 12 PGND R6 TM 22k Burst Mode DEFEAT; USE IF REQUIRED Burst Mode is a trademark of Linear Technology Corporation 220 PANASONIC Si9410 R4 ECGCOKB220R L2 0.01 3 H/10A 2W V OUT 3.3V 10A + + C5 330 F 6. OS-CON MBRS120T3 LTC1262 • TA02 ...
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... DWG # 05-08-1610) 8 0.228 – 0.244 (5.791 – 6.197 0.053 – 0.069 (1.346 – 1.752) 0 – 8 TYP 0.016 – 0.050 0.014 – 0.019 0.406 – 1.270 (0.355 – 0.483) LTC1262 0.400* MAX 0.130 0.005 (3.302 0.127) 0.125 0.020 (3.175) MIN (0 ...
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... McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977 www.linear-tech.com TIE FLOAT CC TO SHUTDOWN BOTH DEVICES 12V OUTPUT 4.75V TO 5.5V LTC1262 • TA03 Output Voltage vs Output Current for Two Paralleled Devices 12 12.2 12.0 11 5.5V CC 11.6 11 4.75V CC 11 ...