ISL8036

Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator

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

PARAMETRICS

Parameters
ISL8036
Basic Information
生产状态
Mass Production
iSim模型
YES
拓扑
Buck
输出数量
2
输入电压最小值 (V)
2.85
输入电压最大值 (V)
6
输出电压最小值 (V)
0.8
输出电压最大值 (V)
6
输出电流最大值 (A)
3
IQ
15 mA
开关频率 (最大值) (MHz)
1
开关频率 (最小值) (MHz)
1
最大占空比 (%)
100
资质级别
Standard
峰值效率 (%)
95
POR
Yes
SYNCH功能
Yes
控制类型
Current Mode
开关频率范围 (MHz)
1
CAN 采样
YES
温度范围
-40 to +85

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