DESCRIPTION
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. FEATURES
u u u u u u Operating frequency of 500kHz Input supply of 4.5V to 15V 0.5A Drive current for up to 10A output Output voltages down to 0.8V Overcurrent protection and soft start SO-8 package APPLICATIONS
u Graphics IC Power supplies u Embedded, low cost, high efficiency converters Typical Application Circuit 12V IN 5V IN R1 C10 C1 C2 U2 2 7 8 C5 C7 C9 R9 R10 4 VCC COMP SS/EN GND BST DH DL FB 6 5 3 1 Q3 C3 R6 R2 R3 Q2 L1 1.5V OUT SC2612E Revision: October 12, 2004 1 SC2612E POWER MANAGEMENT ABSOLUTE MAXIMUM RATINGS
Parameter VCC Supply Voltage Boost Pin Voltage DL to GND , DH to GND (1) (1) 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.
Semtech Corporation
