參數(shù)資料
型號(hào)： Si9139DG-3325
廠商： Vishay Intertechnology,Inc.
英文描述： Multi-Output, Individual On/Off Control Power-Supply Controller
中文描述： 多輸出，單獨(dú)開/關(guān)控制電源控制器
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 162K
代理商： SI9139DG-3325
Si9139
Vishay Siliconix
New Product
Document Number: 71841
S-22317—Rev. A, 16-Dec-02
www.vishay.com
1
Multi-Output, Individual On/Off Control Power-Supply Controller
FEATURES
Five Output 50-W, Triple Output DC-DC-Controller
Up to 95% Efficiency
3% Total Regulation (Line, Load and Temperature)
4.5-V to 30-V Input Voltage Range
Two Fixed 1.5-V, 1.8-V, 2.0-V, 2.2-V, 2.5-V, 2.8-V, 3.3-V Outputs
One Adjustable 1.24-V to 20-V Output
3.3-V Reference Output
5-V/30-mA Linear Regulator Output
Individual ON/OFF Control for A and B Outputs
300-kHz Low-Noise Fixed Frequency Operation
High Efficiency Pulse Skipping Mode Operation at Light Load
Only Three Inductors Required
No Transformer
LITTLE FOOT Optimized Output Drivers
Internal Under Voltage Lockout and Soft-Start
Minimum Number of External Control Components
28-Pin SSOP Package
Output Overvoltage Protection
Output Undervoltage Shutdown
Power-Good Output (RESET)
APPLICATIONS
Notebook and Subnotebook Computers
PDAs and Mobile Communicators
Portable Display
Multimedia Set-Top Box
Telecommunications Infrastructure
Network Equipment
Distributed Power Conversion
DESCRIPTION
The Si9139 is current-mode PWM and PSM converter
controller, with two high current, high efficiency synchronous
buck controllers and an adjustable buck-boost controller
whose output can be set between 1.24 V and 20 V with an
external resistor divider. Designed for fixed and portable
devices, it offers a total of five power outputs (three tightly
regulated dc/dc converter outputs, a precision 3.3-V reference
and a 5-V LDO output. Individually controlled power-up
sequencing, power-good signal with delay, internal frequency
compensation networks and automatic boot-strapping
simplify the system by minimizing the number of external
components
while
achieving
approaching 95%.
conversion
efficiencies
The Si9139 is available in a 28-pin SSOP package and
specified to operate over the extended commercial (-40 C to
85 C) temperature range.
FUNCTIONAL BLOCK DIAGRAM
5-V
Linear
Regulator
3.3-V
Voltage
Reference
1.5- V - 3.3-V
SMPS
A
1.8- V - 3.3-V
SMPS
B
Auxiliary SMPS
Programmable
V
IN
(4.5 V to 30 V)
0 - 6 A
V
L
(5.0 V)
V
(+3.3 V)
1.24-V to 20-V/500 mA
Adjustable
Power_Good
RESET
(Power_Good)
ON
A
ON
B
Logic Control
0 - 6 A
V
OUT
V
OUT
B
V
OUT
A
相關(guān)PDF資料
PDF描述
Si9139DG-3328 Multi-Output, Individual On/Off Control Power-Supply Controller
SI9140 SMP Controller For High Performance Process Power Supplies
SI9140CQ SMP Controller For High Performance Process Power Supplies
SI9140CY SMP Controller For High Performance Process Power Supplies
SI9140DQ SMP Controller For High Performance Process Power Supplies
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SI9139DG-3325-E3 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 3.3 and 2.5V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
SI9139DG-3325-T1 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 3.3 and 2.5V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
SI9139DG-3328 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 3.3 and 2.8V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
SI9139DG-3328-T1 功能描述:電流型 PWM 控制器 Dual Pwr-Supply Ctrl 3.3 and 2.8V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
SI9140 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:SMP Controller For High Performance Process Power Supplies
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