ISL8105A

概要

The ISL8105, ISL8105A is a simple single-phase PWM controller for a synchronous buck converter. It operates from +5V or +12V bias supply voltage. With integrated linear regulator, boot diode, and N-Channel MOSFET gate drivers, the ISL8105, ISL8105A reduces external component count and board space requirements. These make the IC suitable for a wide range of applications. Utilizing voltage-mode control, the output voltage can be precisely regulated to as low as 0. 6V. The 0. 6V internal reference features a maximum tolerance of ±1. 0% over the commercial temperature range, and ±1. 5% over the industrial temperature range. Two fixed oscillator frequency versions are available; 300kHz (ISL8105 for high efficiency applications) and 600kHz (ISL8105A for fast transient applications). The ISL8105, ISL8105A features the capability of safe start-up with pre-biased load. It also provides overcurrent protection by monitoring the ON-resistance of the bottom-side MOSFET to inhibit PWM operation appropriately. During start-up interval, the resistor connected to BGATE/BSOC pin is employed to program overcurrent protection condition. This approach simplifies the implementation and does not deteriorate converter efficiency.

Operates from +5V or +12V Bias Supply Voltage
1.0V to 12V Input Voltage Range (up to 20V possible with restrictions; see "Input Voltage Considerations" on page 9)
0.6V to V_IN Output Voltage Range
0.6V Internal Reference Voltage
±1.0% Tolerance Over the Commercial Temperature Range (0°C to +70°C)
±1.5% Tolerance Over the Industrial Temperature Range (-40°C to +85°C).
Integrated MOSFET Gate Drivers that Operate from V_BIAS (+5V to +12V)
Bootstrapped High-side Gate Driver with Integrated Boot Diode
Drives N-Channel MOSFETs
Simple Voltage-Mode PWM Control
Traditional Dual Edge Modulation
Fast Transient Response
High-Bandwidth Error Amplifier
Full 0% to 100% Duty Cycle
Fixed Operating Frequency
300kHz for ISL8105
600kHz for ISL8105A
Fixed Internal Soft-Start with Pre-biased Load Capability
Lossless, Programmable Overcurrent Protection
Uses Bottom-side MOSFET's r_DS(ON)
Enable/Disable Function Using COMP/EN Pin
Output Current Sourcing and Sinking Currents
Pb-Free (RoHS Compliant)

5V or 12V DC/DC Regulators
Industrial Power Systems
Telecom and Datacom Applications
Test and Measurement Instruments
Distributed DC/DC Power Architecture
Point of Load Modules

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ISL8105AEVAL1Z

Evaluation

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Buck Converter PWM Controller with Integrated MOSFET Gate Drivers Evaluation Board

The ISL8105AEVAL1Z evaluation board highlights the operations of the ISL8105A controller in a DC/DC application. The evaluation board is configured for an output...

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ISL8105AEVAL1Z User Guide

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Processing table

	Pkg. Type	Carrier Type	Moisture Sensitivity Level (MSL)	Temp. Range	Price (USD) \| 1ku	ご購入 / サンプル
(6) アクティブ (0) Obsolete / NRND / LTB	DFN SOICN	Reel Tube	3	-40 to +85°C 0 to +70°C	最大値参考価格は、1,000個を基準としています。また、予告なく変更される場合があります。最小値参考価格は、1,000個を基準としています。また、予告なく変更される場合があります。	サンプルを入手購入/見積
型名	Logical Operator	Logical Operator	Logical Operator	Logical Operator		Logical Operator
ISL8105ACRZ circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model サンプル入手可能	DFN	Tube	3	0 to +70°C		サンプルを入手, 購入/見積
ISL8105ACRZ-T circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model	DFN	Reel	3	0 to +70°C		購入/見積
ISL8105AIBZ circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model サンプル入手可能	SOICN	Tube	3	-40 to +85°C		サンプルを入手, 購入/見積
ISL8105AIBZ-T circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model	SOICN	Reel	3	-40 to +85°C		購入/見積
ISL8105AIRZ circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model サンプル入手可能	DFN	Tube	3	-40 to +85°C		サンプルを入手, 購入/見積
ISL8105AIRZ-T circleアクティブ memoryPkg. Info spa Env. Documentation view_in_ar PCB Symbol, Footprint, and 3D Model	DFN	Reel	3	-40 to +85°C		購入/見積

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+5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers

概要

ドキュメント