SC1186 Semtech Corporation, SC1186 Datasheet
SC1186
Related parts for SC1186
SC1186 Summary of contents
Page 1
... The SC1186 linear sections are low dropout regula- tors with short circuit protection, supplying 1.5V for GTL bus and 2.5V for non-GTL I/O. The Reference voltage is made available for external linear regulators ...
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... DH-PGNDH = 1.5V BSTL-DL = 4.5V, DL-PGNDL = 3.3V DL-PGNDL = 1.5V VOSENSE VIDx 2.4V VIDx = 5V LDOV = 12V Iref 100µA LDOS (1,2) to GATE (1, 6.5V GATE 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 Symbol Maximum Units V -0 ± -0 +70 ° +125 °C ...
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... LDOV = 11.4V to 12.6V; T GND OSENSE O CONDITIONS LDOEN = 3.3V LDOEN = set point GATE(1,2)-AGND;VCC=BST=0V Note: (1) All logic level inputs and outputs are open collector TTL compatible. 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 = 0 to 70°C A MIN TYP MAX UNITS 6.5 8 1.3 1.9 V ...
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... MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 V 4 ...
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... PRELIMINARY - December 2, 1999 APPLICATION CIRCUIT © 1999 SEMTECH CORP. PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 5 ...
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... MV-GX or equiv. Low ESR Various 8 Turns 16AWG on MICROMETALS T50-52D core See notes FET selection requires trade-off between efficiency and cost. Absolute maximum R IR .25 30V SOT23 (or equivalent equivalent IRC OAR-1 Series Various Various Various SEMTECH 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 = 22 m for Q1,Q2 DS(ON) 6 ...
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... Io (Amps) Typical Efficiency (Switching section) Transient Response Vo=2.4V, Io=300mA to 15A © 1999 SEMTECH CORP. PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER 12.0 14.0 16.0 Typical Ripple, Vo=2.0V, Io=10A 2.5V Linear Short circuit output response 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 Output Voltage Output Current 5A/div 7 ...
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... PRELIMINARY - December 2, 1999 LAYOUT GUIDELINES Careful attention to layout requirements are necessary for successful implementation of the SC1186 PWM controller. High currents switching at 140kHz are pre- sent in the application and their effect on ground plane voltage differentials must be understood and mini- mized. 1). The high power parts of the circuit should be laid out first ...
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... The Current Sense resistor and the divider across it should form as small a loop as possible, the traces running back to CS+ and CS- on the SC1186 should run parallel and close to each other. The 0.1 F ca- pacitor should be mounted as close to the CS+ and CS- pins as possible. ...
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... The resulting power dissipation in the top FET will be first order approximation convenient to only consider conduction losses to determine FET suitability. For a 5V in; 2.8V out at 14.2A requirement, typical FET losses would be: 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 OSC ...
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... Rds(on) would be. Rds(on)max = (0.95*3.3-1.5)/4 To allow for temperature effects 200m suitable room temperature maximum, allowing a peak short circuit current of approximately 15A for a short time before shutdown. 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 400m would ...
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... PRELIMINARY - December 2, 1999 OUTLINE DRAWING ECN99-600 9-22-99 ECN99-719 12-2-99 © 1999 SEMTECH CORP. PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER 652 MITCHELL ROAD NEWBURY PARK CA 91320 SC1186 JEDEC MS-013AD B17104B 12 ...