ST662A Datasheet | STMicroelectronics

DESCRIPTION The ST662A is a regulated charge pump DC-DC converter. It provides 12V ± 5% output voltage to program byte-wide flash memory, and can supply 30m A output current from input as low as 4.75V. A logic controlled shut down pin that interfaces directly with microprocessor reduces the supply current to only 1µA. SO-8 TYPICAL APPLICATION CIRCUIT April 2004 1/13 ABSOLUTE MAXIMUM RATINGS Symbol VCC SHDN IO Ptot Top Tstg DC Input Voltage to GND Shutdown Voltage Output Current Continuous Power Dissipation Operating Ambient Temperature Range(for AC SERIES) (for AB SERIES) Storage Temperature Range Parameter Value -0.3 to 6 -0.3 to VCC+0.3 50 500 -0 to 70 -40 to 85 -40 to 150 Unit V V m A m W °C °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. THERMAL DATA Symbol Rthj-case Parameter Thermal Resistance Junction-case SO-8 20 Unit °C/W CONNECTION DIAGRAM (top view) ORDERING CODES TYPE ST662AB ST662AC (- ) AVAILABLE IN TAPE & REEL WITH "-TR" SUFFIX. DIP-8 ST662ABN ST662ACN SO-8 (- ) ST662ABD ST662ACD PIN DESCRIPTION PIN N° 1 2 3 4 5 6 7 8 Symbol C1C1+ C2C2+ VCC VOUT GND SHDN Name and Function Negative Terminal For The First Charge Pump Capacitor Positive Terminal For The First Charge Pump Capacitor Negative Terminal For The Second Charge Pump Capacitor Positive Terminal For The Second Charge Pump Capacitor Supply Voltage 12V Output Voltage VOUT= VCC When in Shutdown Mode Ground Active High C-MOS logic level Shutdown Input. SHDN is internally pulled up to VCC. Connect to GND for Normal Operation. In Shutdown mode the charge pumps are turned off and VOUT= VCC 2/13 ELECTRICAL CHARACTERISTICS (refer to the test circuits, VCC = 4.5V to 5.5V, TA = TMIN to TMAX,unless otherwise specified. Typical Value are referred at TA = 25°C) Symbol VO IQ1 IQ2 ISH VIL VIH f O ν RSW Parameter Output Voltage Quiescent Current Shutdown Current Shutdown Pin Current Shutdown...