Datasheet > ISL6540A

ISL6540A

更新时间： 2024-11-28 04:58:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器控制器
页数	文件大小	规格书
20页	427K
描述
Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability

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ISL6540A 数据手册

ISL6540A

Data Sheet

March 12, 2007

FN6288.2

Single-Phase Buck PWM Controller with

Integrated High Speed MOSFET Driver

and Pre-Biased Load Capability

Features

• VIN and Power Rail Operation from +3.3V to +20V

• Fast Transient Response - 0 to 100% Duty Cycle

- 15MHz Bandwidth Error Amplifier with 6V/μs Slew Rate

- Voltage-Mode PWM Leading and Trailing-Edge

Modulation Control

The ISL6540A is an improved version of the ISL6540

single-phase voltage-mode PWM controller with input voltage

feedforward compensation to maintain a constant loop gain for

optimal transient response, especially for applications with a

wide input voltage range. Its integrated high speed

synchronous rectified MOSFET drivers and other sophisticated

features provide complete control and protection for a DC/DC

converter with minimum external components, resulting in

minimum cost and less engineering design efforts.

- Input Voltage Feedforward Compensation

• 2.9V to 5.5V High Speed 2A/4A MOSFET Gate Drivers

- Tri-state for Power Stage Shutdown

• Internal Linear Regulator (LR) - 5.5V Bias from VIN

• External LR Drive for Optimal Thermal Performance

• Voltage Margining with Independently Adjustable Upper and

Lower Settings for System Stress Testing & Over Clocking

The output voltage of the converter can be precisely regulated

with an internal reference voltage of 0.591V, and has an

improved system tolerance of ±0.68% over commercial

temperature and line load variations. An external voltage can

be used in place of the internal reference for voltage

tracking/DDR applications.

• Reference Voltage I/O for DDR/Tracking Applications

• Improved 0.591V Internal Reference with Buffered Output

- ±0.68%/±1.0% Over Commercial/Industrial Range

• Source and Sink Overcurrent Protections

- Low- and High-Side MOSFET r

DS(ON)

Sensing

• Overvoltage and Undervoltage Protections

The ISL6540A has an internal linear regulator or external linear

regulator drive options for applications with only a single supply

rail. The internal oscillator is adjustable from 250kHz to 2MHz.

The integrated voltage margining, programmable pre-biased

soft-start, differential remote sensing amplifier, and

programmable input voltage POR features enhance the

ISL6540A value.

• Small Converter Size - QFN package

• Oscillator Programmable from 250kHz to 2MHz

• Differential Remote Voltage Sensing with Unity Gain

• Programmable Soft-Start with Pre-Biased Load Capability

• Power Good Indication with Programmable Delay

• EN Input with Voltage Monitoring Capability

• Pb-Free Plus Anneal Available (RoHS Compliant)

Pinout

ISL6540A

(28 LD 5x5 QFN)

TOP VIEW

Applications

• Power Supply for some Microprocessors and GPUs

• Wide and Narrow Input Voltage Range Buck Regulators

• Point of Load Applications

28 27 26 25 24 23 22

• Low-Voltage and High Current Distributed Power Supplies

VSEN+

21 BOOT

20 UGATE

19 PHASE

Ordering Information

VSEN-

REFOUT

REFIN

PART

NUMBER*

(Note)

TEMP.

RANGE

(°C)

PART

MARKING

PACKAGE

(Pb-Free)

PKG.

DWG. #

GND

PGND

LGATE

PVCC

BOTTOM

SIDE PAD

ISL6540ACRZ ISL6540ACRZ 0 to +70 28 Ld 5x5 QFN L28.5x5

ISL6540ACRZA ISL6540ACRZ 0 to +70 28 Ld 5x5 QFN L28.5x5

OFS+

ISL6540AIRZ

ISL6540AIRZ -40 to +85 28 Ld 5x5 QFN L28.5x5

ISL6540AIRZA ISL6540AIRZ -40 to +85 28 Ld 5x5 QFN L28.5x5

LINDRV

OFS-

*Add “-T” suffix for tape and reel.

10 11 12 13 14

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100% matte

tin plate termination finish, which are RoHS compliant and compatible with

both SnPb and Pb-free soldering operations. Intersil Pb-free products are

MSL classified at Pb-free peak reflow temperatures that meet or exceed

the Pb-free requirements of IPC/JEDEC J STD-020.

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

12 3 4 5 6 7...20

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与ISL6540A相关器件

型号	品牌	获取价格	描述	数据表
ISL6540ACRZ	INTERSIL	获取价格	Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased L
ISL6540ACRZA	INTERSIL	获取价格	Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased L
ISL6540ACRZA	RENESAS	获取价格	4A SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PQCC28, 5 X 5 MM, ROHS COMPLIANT, PLA
ISL6540ACRZA-T	RENESAS	获取价格	4A SWITCHING CONTROLLER, 2000kHz SWITCHING FREQ-MAX, PQCC28, 5 X 5 MM, ROHS COMPLIANT, PLA
ISL6540ACRZ-T	RENESAS	获取价格	Single-Phase Buck PWM Controller with High Speed MOSFET Driver and Pre-Biased Load Capabil
ISL6540ACRZ-T	INTERSIL	获取价格	PCN13024 â ASECL Reliability Qualification
ISL6540ACRZ-TS2490	INTERSIL	获取价格	PCN13024 â ASECL Reliability Qualification
ISL6540AIRZ	INTERSIL	获取价格	Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased L
ISL6540AIRZ	RENESAS	获取价格	Single-Phase Buck PWM Controller with High Speed MOSFET Driver and Pre-Biased Load Capabil
ISL6540AIRZA	INTERSIL	获取价格	Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased L

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