ON Semiconductor Introduces NCP3020A, NCP3020B and NCP3011, New Flexible Synchronous PWM Controller Devices

The NCP3020A, NCP3020B and NCP3011 are three new flexible synchronous pulse width modulation (PWM) controller devices. The new PWM controller devices offer wide input voltage range, from 4.7V to 28V, these devices enable the flexibility to be used with a variety of input sources in consumer electronic equipment such as set-top-boxes and LCD televisions, as well as industrial and computing applications including printers, scanners and telecom systems. The newest devices provide a 1A integrated gate drive and are capable of producing output voltages as low as 0.6V (NCP3020A and NCP3020B) and 0.8V (NCP3011). The NCP3011 also provides a buffered +1.25V reference voltage which can be used as a low dropout (LDO) controller for one or two additional outputs. An internal oscillator sets the operating frequencies of 300kHz (NCP3020A), 600kHz (NCP3020B), and 400kHz (NCP3011). A regulated digital soft-start limits in-rush current. The new synchronous PWM controllers feature an externally compensated transconductance error amplifier capable of being used with all ceramic output capacitors or electrolytic capacitors. Also included are an integrated boost diode that helps to reduce overall system size and cost, and an integrated boost drive clamp to regulate the driver supply voltage to 7.6V to allow the use of lower voltage/higher efficiency MOSFETs…

Syncronous PWM Controller Devices
(Photo from ON Semiconductor Website)