參數(shù)資料
型號(hào): ISL6528EVAL1
廠商: Intersil Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Dual Regulator - Standard Buck PWM and Linear Power Controller
中文描述: 雙穩(wěn)壓器-標(biāo)準(zhǔn)降壓PWM和線性功率控制器
文件頁數(shù): 1/13頁
文件大?。?/td> 390K
代理商: ISL6528EVAL1
1
FN9038.3
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 ±2% 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 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: ±2% 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 0–100% duty ratio
Linear controller drives bipolar linear pass transistor
Fully-adjustable outputs
Undervoltage fault monitoring on both outputs
Applications
Graphics–GPU 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 TEMP. RANGE (
o
C)
PACKAGE
PKG.
DWG. #
ISL6528CB
0 to 70
8 Ld SOIC
M8.15
ISL6528CB-T
8Ld SOIC Tape and Reel
ISL6528CBZ
(See Note)
0 to 70
8 Ld SOIC
(Pb-free)
M8.15
ISL6528CBZ-T
(See Note)
8Ld SOIC Tape and Reel (Pb-free)
ISL6528EVAL1
Evaluation Board
NOTE: Intersil Pb-free 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
December 28, 2004
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相關(guān)PDF資料
PDF描述
ISL6528 Dual Regulator - Standard Buck PWM and Linear Power Controller
ISL6528CB Adjustable Precision Shunt Regulator 5-SOT-23 -40 to 125
ISL6528CBZ-T Dual Regulator - Standard Buck PWM and Linear Power Controller
ISL6528CB-T Dual Regulator - Standard Buck PWM and Linear Power Controller
ISL6529ACBZ Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 125
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