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參數(shù)資料
| 型號： | TK11821M |
| 廠商： | TOKO Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | DC-DC CONVERTER |
| 中文描述： | DC - DC變換器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 92K |
| 代理商： | TK11821M |
January, 1996 TOKO, Inc.
Page 1
TK11821
1-30-96
APPLICATIONS
I
Variable Capacitance and PIN Photodiode Bias
I
Portable Instrumentation
I
Radio Control Systems
I
Mobile Radios
I
Cellular Telephones
I
Cordless Telephones
I
Fiberoptic Receivers
I
Local Area Network (LAN) Receivers
I
Battery Operated Equipment
FEATURES
I
Very Low Noise
I
Very Small Size
I
Few External Components
I
Wide Supply Voltage Range (0.9 to 10 V)
I
Sinewave Oscillator
I
Selectable Output Voltages
TK11821M
Tape/Reel Code
TAPE/REEL CODE
BX:
Bulk/Bag
TL:
Tape Left
MG:
Magazine
ORDERING INFORMATION
DC-DC CONVERTER
TK11821M
BLOCK DIAGRAM
1
2
3
4
OSC
VD
BYPASS
VO
VIN
T1
8
7
6
5
VFB
GND
A2
DESCRIPTION
The TK11821 is a low power, low input voltage DC-DC
converter. The device has been optimized for variable
capacitance diode and PIN photodiode bias applications. It
generates 10 Vdc and 24 Vdc output voltages from an input
voltage as low as 0.9 V.
Since the built-in high frequency oscillator generates
sinewaves, the TK11821 produces very low RF interfer-
ence noise. The internal oscillator is capable of operation
at frequencies as high as 6-8 MHz, therefore, interference
filtering is simple and effective. This unique feature makes
the TK11821 ideally suitable for RF and fiber optic receiver
applications.
The device is capable of operation in the 0.9 to 10 V power
supply voltage range.
The output voltage is 24 V when T1 is not connected. When
T1 is connected to V
O
, the output voltage is set to 10 V.
The TK11821 is available in an 8-pin plastic surface mount
(MFP-8) package. External inductive components are also
available.
VO
T1
GND
BYPASS
V REF
VFB
OSC
1
Feedback
Control
6
5
2
4
5
7
3
VD
VIN
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相關(guān)代理商/技術(shù)參數(shù) |
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| TK118A | 制造商:Thomas & Betts 功能描述:Fittings Coupler 3inch Steel |
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| TK11950MTL | 制造商:TOKO 功能描述: |
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| TK119A-RT | 制造商:Thomas & Betts 功能描述:3 1/2 IN RAINTIGHT COMPRESSION CPL |
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