GM7001

GM7001 www.DataSheet4U.com BIPOLAR LOW VOLTAGE SWITCHING REGULATOR CONTROLLER Supply voltage operating range from 1.8 to 15 V Low current consumption: 5.5 mA (typical) operating, 1 µA or less stand-by High speed operation up to 1 MHz Error amplifier gain is set in the chip to minimize peripheral components Soft-start circuit on-chip Timer-latch short-circuit detection circuit (SCP) on-chip Totem-pole output with adjustable on/off current for NPN transistors Stand-by function SOP-8, SOL-8 and SSOP-8 packages available The GM7001 is a single-channel low-voltage switching regulator control IC with soft-start function and short-circuit detection, capable of 1MHz operation. With its low minimum operating voltage of 1.8V and minimal current consumption, the GM7001 is ideal for power supplies in battery-operated equipment. PIN ASSIGNMENT -IN SCP VCC BR/CTL 1 2 3 4 8 7 6 5 FB OSC GND OUT (TOP VIEW) PIN No. 1 2 3 4 5 6 7 8 SYMBOL -IN SC P V CC BR/CTL OUT GND OSC FB I/O I I O O DESCRIPTION Error amplifier inverting input pin Soft start and SCP setting capacitor connection pin Power supply pin Output current setting and control pin Totem-pole type output pin Ground pin Capacitor and resistor connection pin for setting the oscillation frequency Error amplifier output pin Revision 1, May 2002 1 www.gammamicro.com GM7001 www.DataSheet4U.com BIPOLAR LOW VOLTAGE SWITCHING REGULATOR CONTROLLER BLOCK DIAGRAM VCC 3 OSC 7 Reference 0.6 V– Voltage Supply 0.1 V– Sawtooth Wave...