ISL85033

Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current

Product Status: Mass Production

OVERVIEW

The ISL85033 is a dual standard buck regulator capable of 3A per channel continuous output current. With an input range of 4.5V to 28V, it provides a high frequency power solution for a variety of point of load applications. The PWM controller in the ISL85033 drives an internal switching N-Channel power MOSFET and requires an external Schottky diode to generate the output voltage. The integrated power switch is optimized for excellent thermal performance up to 3A of output current. The PWM regulator switches at a default frequency of 500kHz and it can be user programmed or synchronized from 300kHz to 2MHz. The ISL85033 utilizes peak current mode control to provide flexibility in component selection and minimize solution size. The protection features include overcurrent, UVLO and thermal overload protection. The ISL85033 is available in a small 4mmx4mm Thin Quad Flat No-Lead (TQFN) Pb-free package.

KEY FEATURES

  • Wide input voltage range from 4.5V to 28V
  • Adjustable output voltage with continuous output current up to 3A
  • Current mode control
  • Adjustable switching frequency from 300kHz to 2MHz
  • Independent power-good detection
  • Selectable in-phase or out-of-phase PWM operation
  • Independent, sequential, ratiometric or absolute tracking between outputs
  • Internal 2ms soft-start time
  • Overcurrent/short circuit protection, thermal overload protection, UVLO
  • Boot undervoltage detection
  • Pb-free (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL85033
Basic Information
生产状态
Mass Production
iSim模型
YES
输出数量
2
拓扑 [Rail 1]
Buck
输入电压最小值 (V) [Rail 1]
4.5
输入电压最大值 (V) [Rail 1]
28
输出电压最小值 (V) [Rail 1]
0.8
输出电压最大值 (V) [Rail 1]
28
输出电流最大值 (A) [Rail 1]
3
IQ [Rail 1]
1.2 mA
开关频率 (最大值) (MHz)
2
开关频率 (最小值) (MHz)
0.3
最大占空比 (%)
See Datasheet
资质级别
Standard
峰值效率 (%)
92
POR
Yes
SYNCH功能
Yes
控制类型
Current Mode
开关频率范围 (MHz)
0.3 to 2
CAN 采样
YES
温度范围
-40 to +85

设计资源与工具

Selection Tool

 PowerCompass Online Tool

The PowerCompass™ tool helps you find Renesas parts that match your requirements, performs system analysis & more.

Design

Design Tool

 PowerNavigator Software

Configure and monitor digital-DC devices. Easily change features and functions of your power supply design with a simple GUI.

Design

Simulation Tool

iSim Online Designer

Select supporting components, build your schematic and validate your power management and op amp designs.

Simulate

Cross Reference

Intersil Cross Reference

Cross-reference based on data from industry sources. Support for the online tool has been discontinued, but the data is still available.

Download

Knowledge Base

Switching Regulators FAQs

Find answers to common questions, support articles and development hints.


FAQs

相关评估板与套件

Action Needed