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參數資料
| 型號： | MC34268DR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | SCSI-2 Active Terminator Regulator |
| 中文描述： | BUS TERMINATOR SUPPORT CIRCUIT, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 115K |
| 代理商： | MC34268DR2 |
Semiconductor Components Industries, LLC, 2000
April, 2000 – Rev. 1
1
Publication Order Number:
MC34268/D
The MC34268 is a medium current, low dropout positive voltage
regulator specifically designed for use in SCSI–2 active termination
circuits. This device offers the circuit designer an economical
solution for precision voltage regulation, while keeping power losses
to a minimum. The regulator consists of a 1.0 V dropout composite
PNP/NPN pass transistor, current limiting, and thermal limiting.
These devices are packaged in the 8–pin SOP–8 and 3–pin DPAK
and SOT–223 surface mount power packages.
Applications include active SCSI–2 terminators and post
regulation of switching power supplies.
2.85 V Output Voltage for SCSI–2 Active Termination
1.0 V Dropout
Output Current in Excess of 800 mA
Thermal Protection
Short Circuit Protection
Output Trimmed to 1.4% Tolerance
No Minimum Load Required
Space Saving DPAK, SOT–223 and SOP–8 Surface Mount Power
Packages
Simplified Block Diagram
Input
Thermal
Limting
Control
Circuit
Current
Limt
Output
Ground
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
8
1
8
7
6
5
1
2
3
4
Gnd
SOP–8
D SUFFIX
CASE 751
DPAK
DT SUFFIX
CASE 369A
Input
NC
NC
1
2
3
(Top View)
(Top View)
1
3
Output
Output
Heatsink surface (shown as termnal 4 in
case outline drawing) is connected to Pin 2.
SOT–223
ST SUFFIX
CASE 318E
1
3
Pin 1. Ground
2. Output
3. Input
4. Output
4
MARKING
DIAGRAMS
8
ALYW
34268
1
34268
ALYWW
AYW
268ST
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
相關PDF資料 |
PDF描述 |
|---|---|
| MC34268 | SCSI-2 Active Terminator Regulator |
| MC34268D | Single Output LDO, 250mA, Fixed(3.0V), Low Noise, Fast Transient Response 6-SOT-223 -40 to 85 |
| MC34268DT | SCSI-2 Active Terminator Regulator |
| MC34268DTRK | SCSI-2 Active Terminator Regulator |
| MC34268STT3 | SCSI-2 Active Terminator Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC34268DR2G | 功能描述:低壓差穩壓器 - LDO 2.85V 800mA SCSI-5 Active Terminator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MC34268DT | 功能描述:低壓差穩壓器 - LDO 2.85V 800mA SCSI-6 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MC34268DTG | 功能描述:低壓差穩壓器 - LDO 2.85V 800mA SCSI-7 Active Terminator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MC34268DTRK | 功能描述:低壓差穩壓器 - LDO 2.85V 800mA SCSI-8 RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MC34268DTRKG | 功能描述:低壓差穩壓器 - LDO 2.85V 800mA SCSI-9 Active Terminator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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