SC2612C

600kHz/200kHz www.DataSheet4U.com Step-Down DC/DC Converter POWER MANAGEMENT Description The SC2612 is a voltage mode switcher designed for low cost, “point of use” voltage conversion. SC2612 is available with fixed switching frequencies of 600kHz (SC2612A) and 200kHz (SC2612C). The SC2612 has soft start and enable functions and is short circuit protected. The output of the switcher may be set anywhere between 0.8V and 75% of Vin. Short circuit protection is disabled during start-up to allow the output capacitors time to fully charge. SC2612A/C Features u u u u u u Operating frequency of 600kHz or 200kHz Input supply of 3V to 8V 0.5A Drive current for up to 10A output Output voltages down to 0.8V Overcurrent protection and soft start MSOP-8 package Applications u Graphics IC Power supplies u Embedded, low cost, high efficiency converters Typical Application Circuit 12V IN 3.3V IN R1 C10 C1 C2 U2 4 1 2 C5 C7 R9 C9 R10 5 VCC BST 8 7 6 3 R2 R3 Q2 L1 1.5V OUT Q3 R6 COMP DH SS/EN GND DL FB SC2612 C3 August 18, 2004 1 www.semtech.com SC2612A/C POWER MANAGEMENT Absolute Maximum Ratings Parameter Input Supply Voltage Boost Pin Voltage DL to GND (2) www.DataSheet4U.com 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. Symbol VCC VBST (2) Maximum 15 20 -1 to +20 0 to 70 125 -65 to 150 300 113 42 2 Units V V V °C °...