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參數資料
| 型號： | SI786DSG-T1-E3 |
| 廠商： | Vishay Siliconix |
| 文件頁數： | 1/16頁 |
| 文件大小： | 236K |
| 描述： | IC REG QD BUCK/LINEAR 28SSOP |
| 標準包裝： | 1,800 |
| 拓撲： | 降壓（降壓）（2），線性（LDO）（2） |
| 功能： | 任何功能 |
| 輸出數： | 4 |
| 頻率 - 開關： | 300kHz，200kHz |
| 電壓/電流 - 輸出 1： | 控制器 |
| 電壓/電流 - 輸出 2： | 控制器 |
| 電壓/電流 - 輸出 3： | 5V，5mA |
| 帶 LED 驅動器： | 無 |
| 帶監控器： | 無 |
| 帶序列發生器： | 無 |
| 電源電壓： | 5.5 V ~ 30 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
Vishay Siliconix
Si786
Document Number: 70189
S-40807-Rev. J, 26-Apr-04
www.vishay.com
1
Product is End of Life 3/2014
Dual-Output Power-Supply Controller
FEATURES
" Fixed 5 V and 3.3 V Step-down Converters
" Less than 500 礎 Quiescent Current per Converter
" 25 礎 Shutdown Current
" 5.5 V to 30 V Operating Range
DESCRIPTION
The Si786 Dual Controller for Portable Computer Power
Conversion is pin and functionally compatible with the
MAX786 dual-output power supply controller for notebook
computers. The device is designed as a drop-in replacement
for that circuit.
The circuit is a system level integration of two step-down
controllers, micropower 5 V and 3.3 V linear regulators, and
two comparators. The controllers perform high efficiency
conversion of the battery pack energy (typically 12 V) or the
output of an ac to dc wall converter (typically 18 V to 24 V dc)
to 5 V and 3.3 V system supply voltages. The micropower lin-
ear regulator can be used to keep power management and
back-up circuitry alive during the shutdown of the step-down
converters. The comparators can be biased at any voltage
between 2.7 V and the input voltage, simplifying battery mon-
itoring or providing sufficient voltage to enhance the gate of
a low on-resistance N-Channel FET used in switching power
to different zones in the system.
A complete power conversion and management system can
be implemented with the Si786 Dual Controller for Portable
Computer Power Conversion, an inexpensive linear regula-
tor, the Si9140 SMP Controller for High Performance Proces-
sor Power Supplies, five Si4410 N-Channel TrenchFET
?/DIV>
Power MOSFETs, one Si4435 P-Channel TrenchFET Power
MOSFET, and two Si9712 PC Card (PCMCIA) Interface
Switches.
The Si9130 Pin-Programmable Dual Controller for Portable
PCs is another integrated system level devices for portable
PC power systems.
The Si786 is available in both standard and lead (Pb)-free
28-pin SSOP packages and specified to operate over the
(0癈 to 70 癈), (- 10 癈 to 90 癈) and (- 40 癈 to 85 癈) tem-
perature ranges. See Ordering Information for corresponding
part numbers.
FUNCTIONAL BLOCK DIAGRAM
Si786
SHUTDOWN
5 V ON/OFF
3.3 V ON/OFF
SYNC
Power
Section
3.3 V
5 V
礟
Memory
Peripherals
Power-Good
Low-Battery Warning
5.5. V
to
30 V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SI786LG | 功能描述:DC/DC 開關控制器 3.3V Power Sup Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| SI786LG-E3 | 功能描述:DC/DC 開關控制器 3.3V Power Sup Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| SI786LG-T1 | 功能描述:開關變換器、穩壓器與控制器 Dual 3.3V Step-Down RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SI786LG-T1-E3 | 功能描述:開關變換器、穩壓器與控制器 Dual 3.3V Step-Down RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SI786LRG | 功能描述:DC/DC 開關控制器 3.45V Power Sup Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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