ISL85003AFRZ-T 开关稳压器

ISL85003AFRZ-T

开关稳压器 3A Synchronous Buck Regulator PWM Highly Efficient

The ISL85003AFRZ-T ISL85003 and ISL85003A are synchronous buck regulators  with integrated high-side and low-side FETs. The regulator can  operate from an input voltage range of 4.5V to 18V while  delivering a very efficient continuous 3A current. This is all  delivered in a very compact 3mmx4mm DFN package.

Features ISL85003AFRZ-T

• Input voltage range 4.5V to 18V

• Output voltage adjustable from 0.8V, ±1%

• Efficiency up to 95%

• Integrated boot diode with undervoltage detection

• Current mode control

- DCM/CCM

- Internal or external compensation options

- 500kHz switching frequency option

- External synchronization up to 2MHz on ISL85003

• Adjustable soft-start time on the ISL85003A

• Open-drain PG window comparator

- Built-in protection

- Positive and negative overcurrent protection

- Overvoltage and thermal protection

- Input overvoltage protection

• Small 12 Ld 3mmx4mm Dual Flat No-Lead (DFN) package

Applications ISL85003AFRZ-T

• Network and communication equipment

• Industrial process control

• Multifunction printers

• Point-of-load regulators

• Standard 12V rail supplies

• Embedded computing