LTC1263

LTC1263 12V, 60mA Flash Memory Programming Supply FEATURES s s s s s s s s DESCRIPTION The LTC ®1263 is a regulated 12V, 60mA output DC/DC converter. It provides the 12V ± 5% output necessary to program double byte-wide flash memories. The output provides 60mA from input voltages as low as 4.75V without using any inductors. Only four external capacitors are required to complete an extremely small, surface mountable circuit. The output can be momentarily shorted to ground without damaging the part. The active high TTL compatible Shutdown pin can be directly connected to a microprocessor. In the shutdown mode, the supply current typically drops to 0.5µA. The LTC1263 is available in an 8-pin SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. Guaranteed 60mA Output Regulated 12V ±5% Output Voltage No Inductors Supply Voltage Range: 4.75V to 5.5V ICC 0.5µA Typ in Shutdown Low Power: ICC = 300µA 8-Pin SO Package Same Pinout as LTC1262 and MAX662 U APPLICATIONS s s s 12V Flash Memory Programming Supplies Compact 12V Op Amp Supplies Battery-Powered Systems TYPICAL APPLICATION Flash Memory Programming Supply VCC 4.75V TO 5.5V 13.0 12.8 12.6 OUTPUT VOLTAGE (V) 10µF C1 0.47µF C1+ LTC1263 C2 – 0.47µF C2+ VOUT GND 12V – SHDN VCC SHDN ON 12.4 12.2 12.0 11.8 11.6 11.4 11.2 µP 5V FLASH MEMORY VPP 10µF LTC1263 TA01 11.0 0 20 40 60 80 LOAD CURRENT (mA) 100 LTC1263 TA02 U U Output Voltage vs Load 1 LTC1263 ABSOLUTE MAXIMUM RATINGS (Note ...