Datasheet > ISL78236CRSHEVAL1Z

ISL78236CRSHEVAL1Z

更新时间： 2024-01-06 08:14:44

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
24页	1946K
描述
Dual 3A Current Sharing 2.5MHz High Efficiency Synchronous Buck Regulator

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Dual 3A Current Sharing 2.5MHz High Efficiency

Synchronous Buck Regulator

ISL78236

Features

The ISL78236 is a dual output 3A/3A integrated FET buck

regulator for point-of-load power applications. 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 3V/5V bus

input. It is optimized for regulating output voltages down to

1.2V. Each channel provides an output current up to 3A which

can be combined to form a single 6A output in current sharing

mode. The two channels operate 180° out-of-phase to reduce

input RMS current and EMI.

• Dual 3A/3A independent outputs

• 2.5MHz synchronous buck regulator with internal MOSFETs

up to 95% efficiency

• 2% voltage reference accuracy over-temperature

• 6A current sharing mode operation

• Internal or external compensation

• Peak current limiting and hiccup mode short circuit

protection

The ISL78236 integrates a pair of low ON-resistance P-channel

and N-channel internal MOSFETs to maximize efficiency and

minimize external component count. It can operate up to

100% duty cycle to maximize operating life as battery voltage

drops out. When supplying 3A on each channel, the 100% duty

cycle operation limits the dropout voltage to less than 250mV.

Other features include internal digital soft-start, independent

channel enable for power sequencing, overcurrent protection,

and thermal shutdown.

• Reverse overcurrent protection

• Over-temperature protection shutdown

• AEC - Q100 qualified

Applications

• DSP and embedded processor power supply

• Infotainment system power

• Automotive point of load power

The ISL78236 is offered in a 24 Ld 4mmx4mm QFN package

with 1mm maximum height. The complete converter occupies

less than 1.5cm area.

Related Literature

• AN1927, “ISL78236DUALEVAL1Z Dual 3A Low Quiescent

Current High Efficiency Synchronous Buck Regulator”

The ISL78236 is AEC - Q100 qualified and is rated for the

automotive temperature range (-40°C to +105°C).

• AN1928, “ISL78236CRSHEVAL1Z Current Sharing 6A Low

Quiescent Current High Efficiency Synchronous Buck

Regulator”

100

2.5V

OUT

1.2V/3A

1.5V/3A

3V INPUT

EN1

LX1

LX2

FPGA OR DSP

POWER

1.2V

OUT

PG1

EN2

PG2

1.5V

OUT

ISL78236

1.8V

ASIC POWER

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT LOAD (A)

FIGURE 1. TYPICAL APPLICATION BLOCK DIAGRAM: DUAL OUTPUT

3A/3A BUCK REGULATOR

FIGURE 2. EFFICIENCY vs LOAD CURRENT, V = 3.3V, T = +25°C

April 28, 2014

FN8624.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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与ISL78236CRSHEVAL1Z相关器件

型号	品牌	获取价格	描述	数据表
ISL78236DUALEVAL1Z	RENESAS	获取价格	Dual 3A Current Sharing 2.5MHz High Efficiency Synchronous Buck Regulator
ISL78236DUALEVAL1Z	INTERSIL	获取价格	Dual 3A Current Sharing 2.5MHz High Efficiency Synchronous Buck Regulator
ISL78263	RENESAS	获取价格	Automotive 42V Dual Synchronous Boost and Low-Iq Buck Controllers with Integrated Drivers
ISL78264	RENESAS	获取价格	Automotive Dual Synchronous Buck Controller with Integrated Drivers
ISL78268	RENESAS	获取价格	55V Synchronous Buck Controller with Integrated 3A Driver
ISL78268	INTERSIL	获取价格	Integrated 2A sourcing
ISL78268ARZ	INTERSIL	获取价格	Integrated 2A sourcing
ISL78268ARZ	RENESAS	获取价格	55V Synchronous Buck Controller with Integrated 3A Driver
ISL78268EVAL1Z	RENESAS	获取价格	55V Synchronous Buck Controller with Integrated 3A Driver
ISL78268EVAL1Z	INTERSIL	获取价格	Integrated 2A sourcing

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