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參數(shù)資料
| 型號(hào)： | TC110503ECTTR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | EIAJ, SC-74A, SOT-23A, 5 PIN |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 464K |
| 代理商： | TC110503ECTTR |
2002 Microchip Technology Inc.
DS21355B-page 1
TC110
Features
Assured Start-up at 0.9V
50
A (Typ) Supply Current (fOSC = 100kHz)
300mA Output Current @ VIN ≥ 2.7V
0.5
A Shutdown Mode
100kHz and 300kHz Switching Frequency
Options
Programmable Soft-Start
84% Typical Efficiency
Small Package: 5-Pin SOT-23A
Applications
Palmtops
Battery-Operated Systems
Positive LCD Bias Generators
Portable Communicators
Device Selection Table
*Other
output
voltages
are
available.
Please
contact
Microchip Technology Inc. for details.
Package Type
General Description
The TC110 is a step-up (Boost) switching controller
that furnishes output currents of up to 300mA while
delivering a typical efficiency of 84%. The TC110
normally operates in pulse width modulation mode
(PWM), but automatically switches to pulse frequency
modulation (PFM) at low output loads for greater
efficiency. Supply current draw for the 100kHz version
is typically only 50
A, and is reduced to less than
0.5
A when the SHDN input is brought low. Regulator
operation is suspended during shutdown. The TC110
accepts input voltages from 2.0V to 10.0V, with a
guaranteed start-up voltage of 0.9V.
The TC110 is available in a small 5-Pin SOT-23A
package, occupies minimum board space and uses
small external components (the 300kHz version allows
for less than 5mm surface-mount magnetics).
Functional Block Diagram
Part
Number
Output
Voltage
(V)*
Package
Osc.
Freq.
(kHz)
Operating
Temp.
Range
TC110501ECT
5.0
5-Pin SOT-23A
100
-40
°Cto+85°C
TC110331ECT
3.3
5-Pin SOT-23A
100
-40
°Cto+85°C
TC110301ECT
3.0
5-Pin SOT-23A
100
-40
°Cto+85°C
TC110503ECT
5.0
5-Pin SOT-23A
300
-40
°Cto+85°C
TC110333ECT
3.3
5-Pin SOT-23A
300
-40
°Cto+85°C
TC110303ECT
3.0
5-Pin SOT-23A
300
-40
°Cto+85°C
TC110
1
23
5
4
VDD
EXT
GND
5-Pin SOT-23A
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A
VOUT
SHDN/SS
5
4
TC110
1
3
2
3V to 5V Supply
SHDN/SS
VDD
EXT
GND
IN5817
D1
47
F
Tantalum
Si9410DY
47
H
10
F
Battery
3V
VOUT
R
*RC Optional
C
ON
OFF
+
–
PFM/PWM Step-Up DC/DC Controller
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| TC1107-2.5VOA | 功能描述:低壓差穩(wěn)壓器 - LDO 300mA LDO w/Shdn 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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