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參數(shù)資料
| 型號： | ISL6540IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability |
| 中文描述： | SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, PLASTIC, MO-220VHHD-1, QFN-28 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 518K |
| 代理商： | ISL6540IRZ |
1
ISL6540
Data Sheet
March 9, 2006
FN9214.0
Single-Phase Buck PWM Controller with
Integrated High Speed MOSFET Driver
and Pre-Biased Load Capability
The ISL6540 is a 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.
The output voltage of the converter can be precisely regulated
with an internal reference voltage of 0.591V, and has a system
tolerance of ±0.85% 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 ISL6540 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
ISL6540 value.
Pinout
ISL6540
(28 LD 5x5 QFN)
TOP VIEW
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/
μ
s Slew Rate
- Voltage-Mode PWM Leading and Trailing-edge
Modulation Control
- Input Voltage Feedforward Compensation
2.9V to 5.6V High Speed 2A/4A MOSFET Gate Drivers
-
Tri-state for Power Stage Shutdown
Internal Linear Regulator (LR) - 5.6V 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
Reference Voltage I/O for DDR/Tracking Applications
Precise 0.591V Internal Reference with Buffered Output
-
±0.85%/±1.25% 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 Plus Anneal Available (RoHS Compliant)
Applications
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+
REFOUT
M
P
E
V
C
F
PHASE
BOOT
UGATE
F
PGND
P
V
VSEN-
LGATE
G
SS
OFS-
L
H
PVCC
LINDRV
V
V
OFS+
REFIN
1
2
3
4
5
6
7
21
20
19
18
17
16
15
28
27
26
25
24
23
22
8
9
10
11
12
13
14
GND
BOTTOM
SIDE PAD
Ordering Information
PART
NUMBER*
(Note)
PART
MARKING
TEMP.
RANGE (°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6540CRZ
ISL6540CRZ
0 to 70
28 Ld QFN L28.5x5
ISL6540CRZA ISL6540CRZ
0 to 70
28 Ld QFN L28.5x5
ISL6540IRZ
ISL6540IRZ
-40 to 85
28 Ld QFN L28.5x5
ISL6540IRZA
ISL6540IRZ
-40 to 85
28 Ld QFN L28.5x5
*Add “-T” suffix for tape and reel.
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
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.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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|---|---|
| ISL6540IRZA | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Rail/Tube 制造商:Intersil 功能描述:W/ANNEAL 3 3V-20V INPUT SYNC PWM CONT |
| ISL6540IRZA-T | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Tape and Reel 制造商:Intersil 功能描述:W/ANNEAL 3 3V-20V INPUT SYNC PWM CONT |
| ISL6540IRZ-T | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.6V TO 20V 30A 28QFN EP - Tape and Reel |
| ISL65426EVAL1Z | 功能描述:EVAL BOARD 1 FOR ISL65426 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:* 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:DC/DC，步降 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:3.3V 電流 - 輸出:3A 輸入電壓:4.5 V ~ 28 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):降壓 頻率 - 開關(guān):250kHz 板類型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名稱:497-12113STEVAL-ISA094V1-ND |
| ISL65426EVAL3Z | 制造商:Intersil Corporation 功能描述: |
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