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參數資料
| 型號： | LM3460M5X-1.2/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.22 V, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 1/9頁 |
| 文件大小： | 582K |
| 代理商： | LM3460M5X-1.2/NOPB |
LM3460-1.2, -1.5
Precision Controller for GTLp and GTL Bus Termination
General Description
The LM3460 is a monolithic integrated circuit designed for
precision control of GTLplus and GTL Bus termination. This
controller is available in a tiny SOT23-5 package, and in-
cludes an internally compensated op amp, a bandgap refer-
ence, an NPN output transistor, and voltage setting resistors.
A trimmed precision bandgap voltage reference utilizes tem-
perature drift curvature correction for excellent voltage sta-
bility over the operating range. The precision output control
enables the termination voltage to maintain tight regulation,
despite fast switching requirements on the bus.
The LM3460 controller is designed to be used with a high
current (> 7A) NPN pass transistor to provide the high
current needed for the bus termination. The wide bandwidth
of the feedback loop provides excellent transient response,
and greatly reduces the output capacitance required, thus
reducing cost and board space requirements.
Features
n
Precision output (1%)
n
Output voltage can be adjusted
n
Extremely fast transient response in GTLp and GTL bus
termination
n
Tiny SOT23-5 package
n
Output voltage capability for GTL or GTLp
n
Low temperature coefficient
Applications
n
GTL bus termination (1.2V output @ 7A)
n
GTLp bus termination (1.5V output @ 7A)
n
Adjustable high-current linear regulator
Connection Diagram and Package
Information
01260301
*This resistor is not used on the LM3460-1.2.
LM3460 Functional Diagram
5-Lead Outline Package (M5)
Actual Size
01260302
01260303
*No internal connection, but should be soldered to PC board for best heat
transfer.
Top View
See NS package Number MF05A
Ordering Information
Voltage
Order Number
Package Marking
Supplied As
1.5
LM3460M5-1.5
D06A
1000 Unit Increments on Tape and Reel
1.5
LM3460M5X-1.5
D06A
3000 Unit Increments on Tape and Reel
1.2
LM3460M5-1.2
D09A
1000 Unit Increments on Tape and Reel
1.2
LM3460M5X-1.5
D09A
3000 Unit Increments on Tape and Reel
MARKING CODE: The first letter "D" identifies the part as a Driver, and the next two numbers define the voltage for the part. The fourth letter indicates the
grade, with "A" designating the prime grade of product.
AVAILABILITY: The SOT23-5 package is only available in quantity of 1000 on tape and reel (designated by the letters "M5" in the part number), or in quantity
of 3000 on tape and reel (indicated by the letters "M5X" in the part number).
March 2005
LM3460-1.2,
-1.5
Precision
Controller
for
GTLp
and
GTL
Bus
T
ermination
2005 National Semiconductor Corporation
DS012603
www.national.com
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