ISL8036A

Dual 3A 2.5MHz High Efficiency Synchronous Buck Regulator

Product Status: Mass Production

OVERVIEW

ISL8036, ISL8036A are integrated power controllers rated for dual 3A output current or current sharing operation with a 1MHz (ISL8036)/2.5MHz (ISL8036A) step-down regulator, which is ideal for any low power low-voltage applications. The channels are 180° out-of-phase for input RMS current and EMI reduction. It is optimized for generating low output voltages down to 0.8V each. The supply voltage range is from 2.8V to 6V, allowing for the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The two channels are 180° out-of-phase, and each one has a guaranteed minimum output current of 3A. They can be combined to form a single 6A output in the current sharing mode. While in current sharing, the interleaved PWM signals reduce input and output ripple.

The ISL8036, ISL8036A includes a pair of low ON-resistance P-channel and N-channel internal MOSFETs to maximize efficiency and minimize external component count. 100% duty-cycle operation allows less than 250mV dropout voltage at 3A each.

The ISL8036, ISL8036A offers an independent 1ms Power-good (PG) timer at power-up. When shutdown, ISL8036, ISL8036A discharges the output capacitor. Other features include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown.

The ISL8036, ISL8036A is offered in a 24 Ld 4mmx4mm QFN package with 1mm maximum height. The complete converter occupies less than 1.5cm2 area.

KEY FEATURES

  • 3A High Efficiency Synchronous Buck Regulator with up to 95% Efficiency
  • 2% Output Accuracy Over-Temperature/Load/Line
  • Internal Digital Soft-Start - 1.5ms
  • 6A Current Sharing Mode Operation
  • External Synchronization up to 6MHz
  • Internal Current Mode Compensation
  • Peak Current Limiting and Hiccup Mode Short Circuit Protection
  • Reverse Overcurrent Protection

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL8036A
Basic Information
Production Status
Mass Production
Topology
Buck
# of Outputs
2
Input Voltage Min (V)
2.85
Input Voltage Max (V)
6
Output Voltage Min (V)
0.8
Output Voltage Max (V)
6
Output Current Max (A)
3
IQ
15 mA
Switching Freq. (max) (MHz)
2.5
Switching Freq. (min) (MHz)
2.5
Max Duty Cycle (%)
100
Qualification Level
Standard
Peak Efficiency (%)
95
POR
Yes
SYNCH Capability
Yes
Control Type
Current Mode
Switching Frequency Range (MHz)
2.5
Can Sample
YES
Temperature Range
-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