Intersil presents 12V Synchronous Buck Regulator Portfolio

Highly integrated ISL850xx support auxiliary rails for industrial and infrastructure point-of-load applications up to 14A

Key Features and Specifications of ISL85014, ISL85012 and ISL85009

  • 3.8V to 18V input voltage range, and up to 9A, 12A and 14A output loads
  • Output voltage is adjustable to as low as 0.6V
  • Pre-bias start-up with internal 3ms soft-start
  • Selectable switching frequency of 300kHz or 600kHz, and external sync up to 1MHz
  • Peak current mode control with thermally compensated current limit and internal or external compensation options
  • Full protection includes input/output overvoltage, integrated bootstrap diode with undervoltage detection, and selectable overcurrent protection (OCP) schemes including hiccup and latch-off

Key Features and Specifications of ISL85005A and ISL85005

  • 4.5V to 18V input voltage range, and up to 5A output load
  • Output voltage is adjustable to as low as 0.8V
  • Integrated bootstrap diode with undervoltage detection
  • Current mode control with internal or external compensation options
  • Default switching frequency internally set 500kHz
  • ISL85005 has internal 2.3ms soft-start; ISL85005A has programmable soft-start to limit inrush current during startup
  • Full protection includes output Power-Good (PG) indicator, HS cycle-by-cycle current limit, LS forward and reverse OCP, thermal shutdown, input undervoltage lockout (UVLO), and input and output overvoltage protection

The ISL850xx family of buck regulators can work alongside the ISL68127 and ISL69124 digital multiphase controllers andISL99227 smart power stages to support networking auxiliary output rails with high efficiency and compact size. They are also well suited for two stage 12V to 5V/3.3V rails working with Intersil’s 5V sync buck regulators such as the 6A ISL8026, dual 3A ISL8033, and 3A ISL80030/31.

Pricing and Availability

The ISL850xx 12V sync buck regulators are available now in 12-lead DFN and 15-lead TQFN packages with pricing from $0.75 USD to $2.35 in 1k quantities. For more information and to order evaluation boards, please visit: www.intersil.com/12v-buck-regulators.

Device

Output Current

Input Supply

Package

Price $USD

(1k units)

ISL85014

14A

3.8V to 18V

3.5mm x 3.5mm, 15-L TQFN

$2.35

ISL85012

12A

3.8V to 18V

3.5mm x 3.5mm, 15-L TQFN

$2.25

ISL85009

9A

3.8V to 18V

3.5mm x 3.5mm, 15-L TQFN

$1.50

ISL85005A

5A

4.5V to 18V

3mm x 4mm, 12-pin DFN

$0.77

ISL85005

5A

4.5V to 18V

3mm x 4mm, 12-pin DFN

$0.75

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