LTC1262

LTC1262 12V, 30mA Flash Memory Programming Supply FEATURES s s s s s s s DESCRIPTIO Regulated 12V ± 5% Output Voltage No Inductors Supply Voltage Range: 4.75V to 5.5V Guaranteed 30mA Output Low Power: ICC = 500µA ICC in Shutdown: 0.5µA 8-Pin PDIP or SO-8 Package The LTC®1262 is a regulated 12V, 30mA output DC/DC converter. It is designed to provide the 12V ± 5% output necessary to program byte-wide flash memories. The output will provide up to 30mA 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 TTL compatible shutdown pin can be directly connected to a microprocessor and reduces the supply current to less than 0.5µA. The LTC1262 offers improved shutdown current performance and requires fewer external components than competing solutions. The LTC1262 is available in an 8-pin PDIP or SO-8 package. , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATI s s s S 12V Flash Memory Programming Supplies Compact 12V Op Amp Supplies Battery-Powered Systems TYPICAL APPLICATI 1 0.22µF 2 3 0.22µF 4 C1– C1+ SHDN GND LTC1262 VOUT VCC 8 7 6 5 FROM MPU FLASH MEMORY VPP 4.7µF VCC VCC 4.75V TO 5.5V LTC1262 TA01 + 4.7µF SHDN 5V 5V/DIV 0V C2 – C2+ + 12V VOUT 5V/DIV 5V 0V 1ms/DIV 1262 TA01a U In/Out of Shutdown UO UO 1 LTC1262 ABSOLUTE (Note 1) AXI U RATI GS PACKAGE/ORDER I FOR ATIO TOP VIEW C1– 1 C1+ 2 C2 – Supply Voltag...