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參數(shù)資料
| 型號(hào)： | ISL6558CR-T |
| 廠商： | INTERSIL CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positioning |
| 中文描述： | SWITCHING CONTROLLER, 1500 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | 5 X 5 MM, PLASTIC, MO-220-VHHC, MLFP, QFN-20 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 474K |
| 代理商： | ISL6558CR-T |
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FN9027.12
ISL6558
Multi-Purpose Precision Multi-Phase PWM
Controller With Optional Active Voltage
Positioning
The ISL6558 is a multi-phase PWM controller, which in
combination with the HIP6601B, HIP6602B, HIP6603B, or
ISL6605 companion gate drivers form a complete solution
for high-current, high slew-rate applications. The ISL6558
regulates output voltage, balances load currents and
provides protective functions for two to four synchronous
rectified buck converter channels.
A novel approach to current sensing is used to reduce
overall solution cost and improve efficiency. The voltage
developed across the lower MOSFET during conduction is
sampled and fed back to the controller. This lossless
current-sensing approach enables the controller to maintain
phase-current balance between the power channels, provide
overcurrent protection, and permit droop compensation.
Optional output voltage “droop” or active voltage positioning
is supported via the DROOP pin. Taking advantage of this
feature reduces the size and cost of the output capacitors
required to support a load transient.
In the event of an overvoltage, the controller monitors and
responds to reduce the risk of damage to load devices.
Undervoltage conditions are indicated through a PGOOD
transition. Overcurrent conditions cause the converter to
shutdown limiting the exposure of load devices. These
integrated monitoring and protection features provide a safe
environment for microprocessors and other advanced low
voltage circuits.
Features
Pb-Free Plus Anneal Available (RoHS Compliant)
Multi-Phase Power Conversion
- 2-, 3-, or 4-Phase Operation
Optional Output Voltage Droop
Precision Channel-Current Balance
Lossless Current Sensing
Precision Reference Voltage
- 0.8V ± 1.5% Over -40
°
C - 85
°
C Range
- 0.8V ± 1.0% Over 0
°
C - 70
°
C Range
Fast Transient Response
Overcurrent and Overvoltage Protection
Digital Soft-start
Power Good Indication
High Ripple Frequency (80kHz to 1.5MHz)
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
Applications
Power Supply Control for Microprocessors
Low Output Voltage, High Current DC-DC Converters
Voltage Regulator Modules
Servers and Workstations
Memory and Accelerated Graphics Port Supplies
Communication Processor and Personal Computer
Peripherals
Pinouts
COMP
DROOP
FB
VSEN
G
P
P
P
I
PWM2
ISEN1
PWM1
V
ISEN2
G
N
N/C
ISEN3
V
1
2
3
4
5
6
7
8
9
10
15
14
13
12
11
20
19
18
17
16
F
9
10
11
12
13
14
16
15
8
7
6
5
4
3
2
1
V
CC
PGOOD
COMP
DROOP
FB
VSEN
FS/EN
GND
PWM4
ISEN4
ISEN1
PWM1
PWM2
ISEN2
ISEN3
PWM3
ISL6558 (16 LEAD SOIC)
TOP VIEW
ISL6558 (20 LEAD 5X5 QFN)
TOP VIEW
Data Sheet
June 21, 2005
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. 2001-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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參數(shù)描述 |
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| ISL6558CRZ | 功能描述:IC REG CTRLR BUCK PWM 20-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6558CRZA | 功能描述:IC REG CTRLR BUCK PWM 20-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6558CRZA-T | 功能描述:IC REG CTRLR BUCK PWM 20-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6558CRZ-T | 功能描述:IC REG CTRLR BUCK PWM 20-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
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