SC2603EVB SEMTECH [Semtech Corporation], SC2603EVB Datasheet
SC2603EVB
Related parts for SC2603EVB
SC2603EVB Summary of contents
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POWER MANAGEMENT Description The SC2603 is a versatile, low-cost, voltage-mode PWM controller designed for 16V input DC/DC power supply applications. A simple, fixed-voltage boost regulator can be implemented using the SC2603 with a minimum of external components. The small device ...
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POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied ...
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POWER MANAGEMENT Pin Configuration Top View FB 1 GND 2 EN/SS 3 SOT23-6 Pin Descriptions Block Diagram OSCILLATOR OSCILLATOR FB 25K EN/SS VIN © 2005 Semtech Corp. Ordering Information P ...
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POWER MANAGEMENT Theory of Operation The SC2603 is a versatile, low-cost, voltage-mode PWM controller designed for DC/DC power supply applications. In normal condition, the SC2603 operats at a fixed 200KHz. One exception is that when the FB pin voltage drops ...
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POWER MANAGEMENT Application Information Over Current Protection The over-current protection is implemented by a sensing resistor and an internal current-limit comparator with a threshold of 70mV. If the switching current through the sensing resistor causing voltage to drop at the ...
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POWER MANAGEMENT Applications Information Layout Guidelines Careful attention to layout requirements are necessary for successful implementation of the SC2603 PWM con- troller. High currents switching at 200kHz are present in the application and their effect on ground plane voltage differentials ...
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POWER MANAGEMENT Applications Information (Cont.) Layout diagram for the SC2603 12VIN Cin 2 0.1uF 0.1uF 6 Heavy lines indicate the critical loop carrying high pulsating current. The inductance of this loop needs to be minimized. © 2005 Semtech ...
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POWER MANAGEMENT Applications Circuit 12V to 25V @ 1A boost converter VIN = 12V VIN = 12V Enable Enable (open drain) (open drain) Open Drain with < 100 C4 C4 pull down impedance 0.1u 0.1u Bill ...
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POWER MANAGEMENT Typical Characteristics Error Amplifier: Gain and Phase Gain 10 Phase -10 100.0E+0 1.0E+3 10.0E+3 100.0E+3 Frequency (Hz) Efficiency (V = 12V 25V ...
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POWER MANAGEMENT Typical Characteristics Reference Voltage vs Temperature 1.26 1.255 1.25 1.245 1.24 1.235 1.23 1.225 1.22 -50 - TEMPERATURE ( Oscillator Frequency vs Temperature ...
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POWER MANAGEMENT Outline Drawing - SOT23-6 2X E/2 ccc C 2X N/2 TIPS aaa C SEATING PLANE C NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD ...