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参数资料
| 型号： | ISL6540AIRZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 28-QFN |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 6,000 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 2MHz |
| 占空比： | 100% |
| 电源电压： | 2.97 V ~ 22 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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ISL6540A
Data Sheet
October 7, 2008
FN6288.5
Single-Phase Buck PWM Controller with
Integrated High Speed MOSFET Driver
and Pre-Biased Load Capability
The ISL6540A is an improved version of the ISL6540
single-phase voltage-mode PWM controller with input voltage
feed-forward 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.
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.
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.
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
- 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 and Over Clocking
? 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
? 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 (RoHS Compliant)
Pinout
ISL6540A
Applications
(28 LD 5x5 QFN)
TOP VIEW
?
?
?
?
Power Supply for some Microprocessors and GPUs
Wide and Narrow Input Voltage Range Buck Regulators
Point of Load Applications
Low-Voltage and High Current Distributed Power Supplies
VSEN+
1
28
27
26
25
24
23
22
21
BOOT
Ordering Information
PART
TEMP.
VSEN-
2
20
UGATE
NUMBER*
PART
RANGE
PACKAGE
PKG.
(Note)
MARKING
(°C)
(Pb-Free)
DWG. #
REFOUT
3
GND
19
PHASE
ISL6540ACRZ* ISL6540 ACRZ
0 to +70 28 Ld 5x5 QFN L28.5x5
REFIN
4
BOTTOM
18
PGND
ISL6540AIRZ*
ISL6540 AIRZ
-40 to +85 28 Ld 5x5 QFN L28.5x5
SS
5
SIDE PAD
17
LGATE
ISL6540AIRZA* ISL6540 AIRZ
-40 to +85 28 Ld 5x5 QFN L28.5x5
OFS+
OFS-
6
7
16
15
PVCC
LINDRV
These Intersil Pb-free plastic packaged products employ special Pb-
8
9
10
11
12
13
14
free material sets, molding compounds/die attach materials, and 100%
matte tin plate plus anneal (e3 termination finish, which is 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.
1
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.
Copyright Intersil Americas Inc. 2006 - 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6540AIRZ-TR5359 | 制造商:Intersil Corporation 功能描述: |
| ISL6540AIRZ-TR5453 | 制造商:Intersil Corporation 功能描述:STD. ISL6540AIRZ-T WITH GOLD BOND WIRE ONLY - Tape and Reel |
| ISL6540CRZ | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Rail/Tube |
| ISL6540CRZA | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Rail/Tube |
| ISL6540CRZA-T | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Tape and Reel |
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