Datasheet > ISL6269ACRZ-T

ISL6269ACRZ-T

更新时间： 2024-09-23 04:58:39

品牌	Logo	应用领域
英特矽尔 - INTERSIL		控制器
页数	文件大小	规格书
13页	381K
描述
High-Performance Notebook PWM Controller

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ISL6269ACRZ-T 数据手册

ISL6269A

Data Sheet

August 7, 2006

FN9253.1

High-Performance Notebook PWM

Controller

Features

• High performance R technology

The ISL6269A IC is a Single-Phase Synchronous-Buck

PWM controller featuring Intersil's Robust Ripple Regulator

(R ) technology that delivers truly superior dynamic

response to input voltage and output load transients.

Integrated MOSFET drivers and bootstrap diode result in

fewer components and smaller implementation area.

• Fast transient response

• ±1% regulation accuracy: -10°C to +100°C

• Wide input voltage range: +7.0V to +25.0V

• Output voltage range: +0.6V to +3.3V

• Wide output load range: 0A to 25A

Intersil’s R technology combines the best features of fixed-

frequency PWM and hysteretic PWM while eliminating many

of their shortcomings. R technology employs an innovative

• Selectable diode emulation mode for increased light load

efficiency

modulator that synthesizes an AC ripple voltage signal V ,

analogous to the output inductor ripple current. The AC

• Programmable PWM frequency: 200kHz to 600kHz

• Pre-biased output start-up capability

• Integrated MOSFET drivers and bootstrap diode

• Internal digital soft-start

signal V enters a window comparator where the lower

threshold is the error amplifier output V

, and the upper

COMP

threshold is a programmable voltage reference V resulting

in generation of the PWM signal. The voltage reference V

sets the steady-state PWM frequency. Both edges of the

PWM can be modulated in response to input voltage

transients and output load transients, much faster than

conventional fixed-frequency PWM controllers. Unlike a

• Power good monitor

• Fault protection

- Undervoltage protection

- Soft crowbar overvoltage protection

conventional hysteretic converter, the ISL6269A has an error

amplifier that provides ±1% voltage regulation at the FB pin.

- Low-side MOSFET r

overcurrent protection

DS(on)

- Over-temperature protection

The ISL6269A has a 1.5ms digital soft-start and can be

started into a pre-biased output voltage. A resistor divider is

used to program the output voltage setpoint. The ISL6269A

can be configured to operate in continuous-conduction-

mode (CCM) or diode-emulation-mode (DEM), which

improves light-load efficiency. In CCM the controller always

operates as a synchronous rectifier however, when DEM is

enabled the low-side MOSFET is permitted to stay off,

blocking negative current flow into the low-side MOSFET

from the output inductor.

- Fault identification by PGOOD pull down resistance

Applications

• PCI express graphical processing unit

• Auxiliary power rail

• VRM

• Network adapter

Ordering Information

Pinout

PART

PKG.

DWG. #

ISL6269A (4x4 QFN)

PART NUMBER MARKING TEMP (°C)

PACKAGE

TOP VIEW

ISL6269ACRZ

(See Note)

6269ACRZ -10 to +100 16 Ld 4x4 QFN L16.4x4

(Pb-Free)

ISL6269ACRZ-T 6269ACRZ 16 Ld 4x4 QFN Tape and

(See Note) Reel (Pb-Free)

L16.4x4

16 15 14 13

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.

PVCC

VIN

VCC

FCCM

GND

10 PGND

ISEN

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...13

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ISL6269ACRZ-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6269ACRZ	INTERSIL	类似代替	High-Performance Notebook PWM Controller

与ISL6269ACRZ-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6269ACRZ-T13	RENESAS	获取价格	SWITCHING CONTROLLER
ISL6269AIRZ-T	RENESAS	获取价格	25A SWITCHING CONTROLLER, 600kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM,ROHS COMPLIANT, MO-2
ISL6269AIRZ-T13	RENESAS	获取价格	SWITCHING CONTROLLER
ISL6269AIRZ-T7	RENESAS	获取价格	SWITCHING CONTROLLER
ISL6269B	INTERSIL	获取价格	High-Performance Notebook PWM Controller with Audio-Frequency Clamp
ISL6269B	RENESAS	获取价格	High-Performance Notebook PWM Controller with Audio-Frequency Clamp
ISL6269BCRZ	INTERSIL	获取价格	High-Performance Notebook PWM Controller with Audio-Frequency Clamp
ISL6269BCRZ-T	INTERSIL	获取价格	High-Performance Notebook PWM Controller with Audio-Frequency Clamp
ISL6269BCRZ-T13	RENESAS	获取价格	SWITCHING CONTROLLER
ISL6269BCRZ-T7	RENESAS	获取价格	SWITCHING CONTROLLER

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