參數(shù)資料
型號: ISL6528CBZ-T
廠商: Intersil
文件頁數(shù): 1/13頁
文件大小: 361K
描述: IC REG DL BCK/LINEAR SYNC 8-SOIC
標準包裝: 1
拓撲: 降壓(降壓)同步(1),線性(LDO)(1)
功能: 任何功能
輸出數(shù): 2
頻率 - 開關(guān): 600kHz
電壓/電流 - 輸出 1: 控制器
電壓/電流 - 輸出 2: 控制器
帶 LED 驅(qū)動器:
帶監(jiān)控器:
帶序列發(fā)生器:
電源電壓: 4.5 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: *
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應商設(shè)備封裝: *
包裝: 標準包裝
產(chǎn)品目錄頁面: 1243 (CN2011-ZH PDF)
其它名稱: ISL6528CBZ-TDKR
1
?/DIV>
FN9038.4
ISL6528
Dual Regulator - Standard Buck PWM
and Linear Power Controller
The ISL6528 provides the power control and protection for
two output voltages in high-performance graphics cards and
other embedded processor applications. The dual-output
controller drives an N-Channel MOSFET in a standard buck
topology and a NPN pass transistor in a linear configuration.
The ISL6528 provides both a regulated high current, low
voltage supply and an independent, lower current supply
integrated in an 8-lead SOIC package. The controller is ideal
for graphics card applications where both graphics
processing unit (GPU) and memory supplies are required.
The standard buck converter is a simple, single feedback
loop, voltage-mode control with fast transient response. Both
the switching regulator and linear regulator provide a
maximum static regulation tolerance of ?% over line, load,
and temperature ranges. Each output is user-adjustable by
means of external resistors.
An integrated soft-start feature brings both supplies into
regulation in a controlled manner. Each output is monitored
via the FB pins for undervoltage events. If either output
drops below 52.5% of the internal reference voltage, both
regulators are shutdown.
Features
" Pb-free plus anneal available (RoHS compliant)
" Provides two regulated voltages
- One standard buck PWM
- One linear controller
" Small converter size
- 600kHz constant frequency operation
- Small external component count
" Excellent output voltage regulation
- Both outputs: ?% over temperature
" Single 5V bias and bootstrap supply
" Output voltage range: 0.8V to 3.3V
" Simple single-loop voltage-mode PWM control design
" Fast PWM converter transient response
- High-bandwidth error amplifier
- Full 0100% duty ratio
" Linear controller drives bipolar linear pass transistor
" Fully-adjustable outputs
" Undervoltage fault monitoring on both outputs
Applications
"
GraphicsGPU and memory supplies
" ASIC power supplies
" Embedded processor and I/O supplies
" DSP supplies
Related Literature
" Technical Brief TB363 Guidelines for Handling and 
Processing Moisture Sensitive Surface Mount Devices
(SMDs)
Pinout
ISL6528
(SOIC)
TOP VIEW
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE (癈) PACKAGE
PKG.
DWG. #
ISL6528CB   ISL6528CB  0 to 70  8 Ld SOIC M8.15
ISL6528CB-T  ISL6528CB 8Ld SOIC Tape and Reel
ISL6528CBZ
(See Note)
6528CBZ   0 to 70  8 Ld SOIC
(Pb-free)
M8.15
ISL6528CBZ-T
(See Note)
6528CBZ  8Ld SOIC Tape and Reel (Pb-free)
ISL6528EVAL1
Evaluation Board
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.
GND
VCC
DRIVE2
FB2
UGATE
FB
COMP
BOOT
8
7
6
5
1
2
3
4
Data Sheet
March 9, 2006
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. 2004, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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