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參數(shù)資料
| 型號： | ISL6522IRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Adjustable Precision Shunt Regulator 3-SOT-23 0 to 70 |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, PLASTIC, MO-220-VHHB, QFN-16 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 473K |
| 代理商： | ISL6522IRZ |
1
FN9030.7
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 trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2001, 2002, 2004, 2005. All Rights Reserved
PowerPC
is a trademark of IBM. AlphaPC is a trademark of Digital Equipment Corporation. Pentium
is a registered trademark of Intel Corporation.
ISL6522
Buck and Synchronous Rectifier
Pulse-Width Modulator (PWM) Controller
The ISL6522 provides complete control and protection for a
DC-DC converter optimized for high-performance micro-
processor applications. It is designed to drive two N-Channel
MOSFETs in a synchronous rectified buck topology. The
ISL6522 integrates all of the control, output adjustment,
monitoring and protection functions into a single package.
The output voltage of the converter can be precisely
regulated to as low as 0.8V, with a maximum tolerance of
±
1% over temperature and line voltage variations.
The ISL6522 provides simple, single feedback loop, voltage-
mode control with fast transient response. It includes a
200kHz free-running triangle-wave oscillator that is
adjustable from below 50kHz to over 1MHz. The error
amplifier features a 15MHz gain-bandwidth product and
6V/
μ
s slew rate which enables high converter bandwidth for
fast transient performance. The resulting PWM duty ratio
ranges from 0–100%.
The ISL6522 protects against overcurrent conditions by
inhibiting PWM operation. The ISL6522 monitors the current
by using the r
DS(ON)
of the upper MOSFET which eliminates
the need for a current sensing resistor.
Pinouts
SOIC, TSSOP
TOP VIEW
QFN
TOP VIEW
Features
Drives two N-Channel MOSFETs
Operates from +5V or +12V input
Simple single-loop control design
- Voltage-mode PWM control
Fast transient response
- High-bandwidth error amplifier
- Full 0–100% duty ratio
Excellent output voltage regulation
- 0.8V internal reference
-
±
1% over line voltage and temperature
Overcurrent fault monitor
- Does not require extra current sensing element
- Uses MOSFETs r
DS(ON)
Converter can source and sink current
Small converter size
- Constant frequency operation
- 200kHz free-running oscillator programmable from
50kHz to over 1MHz
14-lead SOIC and TSSOP package and 16-lead 5x5mm
QFN Package
QFN Package
- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat
No Leads-Product Outline.
- Near Chip-Scale Package Footprint; Improves PCB
Efficiency and Thinner in Profile
Pb-Free Available (RoHS Compliant)
Applications
Power supply for Pentium
, Pentium Pro, PowerPC
and
AlphaPC microprocessors
High-power 5V to 3.xV DC-DC regulators
Low-voltage distributed power supplies
8
9
10
11
12
13
14
7
6
5
4
3
2
1
OCSET
SS
EN
COMP
FB
RT
VCC
LGATE
PGND
BOOT
UGATE
PHASE
GND
PVCC
1
3
4
15
SS
COMP
FB
EN
N
O
R
V
16
14
13
2
12
10
9
11
6
5
7
8
PVCC
LGATE
PGND
BOOT
N
G
P
U
GND
Data Sheet
March 4, 2005
相關(guān)PDF資料 |
PDF描述 |
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| ISL6522IV | Adjustable Precision Shunt Regulator 3-SOT-23 0 to 70 |
| ISL6522IB | Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller |
| ISL6522IB-T | Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller |
| ISL6522IBZ | Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller |
| ISL6522IBZ-T | Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller |
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參數(shù)描述 |
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| ISL6522IRZR5190 | 制造商:Intersil Corporation 功能描述:VOLT MODE PWM CNTRLR 0.8V TO 12V 500MA 16QFN EP - Rail/Tube 制造商:Intersil Corporation 功能描述:IC REG CTRLR BUCK PWM 16QFN 制造商:Intersil 功能描述:52831C01 MASKONLYFOR CUSTMRS LIKE ATI STD |
| ISL6522IRZS2698 | 制造商:Intersil Corporation 功能描述:LEAD-FREE VERSION OF ISL6522IR - Rail/Tube 制造商:Intersil Corporation 功能描述:IC REG CTRLR BUCK PWM 16QFN 制造商:Intersil 功能描述:VER OF ISL6522IR |
| ISL6522IRZ-T | 功能描述:電壓模式 PWM 控制器 VER OF ISL6522IR-T RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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