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參數資料
| 型號： | TC110 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | PFM/PWM Step-Up DC/DC Controller |
| 中文描述： | 烤瓷/ PWM升壓DC / DC控制器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 464K |
| 代理商： | TC110 |
2002 Microchip Technology Inc.
DS21355B-page 1
TC110
Features
Assured Start-up at 0.9V
50
μ
A (Typ) Supply Current (f
OSC
= 100kHz)
300mA Output Current @ V
IN
≥
2.7V
0.5
μ
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
Microchip Technology Inc. for details.
output
voltages
are
available.
Please
contact
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
μ
A, and is reduced to less than
0.5
μ
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
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
TC110331ECT
3.3
5-Pin SOT-23A
100
TC110301ECT
3.0
5-Pin SOT-23A
100
TC110503ECT
5.0
5-Pin SOT-23A
300
TC110333ECT
3.3
5-Pin SOT-23A
300
TC110303ECT
3.0
5-Pin SOT-23A
300
TC110
1
2
3
5
4
V
DD
EXT
GND
5-Pin SOT-23A
NOTE:
5-Pin SOT-23A is equivalent to the EIAJ SC-74A
V
OUT
SHDN/SS
5
4
TC110
1
3
2
3V to 5V Supply
SHDN/SS
V
DD
EXT
GND
IND1
μ
F
Tan47
Si9410DY
47
μ
H
10
μ
F
Battery
3V
V
OUT
V
OUT
R
*RC Optional
C
ON
OFF
+
+
+
–
PFM/PWM Step-Up DC/DC Controller
相關PDF資料 |
PDF描述 |
|---|---|
| TC110301ECT | PFM/PWM Step-Up DC/DC Controller |
| TC110303ECT | PFM/PWM Step-Up DC/DC Controller |
| TC110501ECT | PFM/PWM Step-Up DC/DC Controller |
| TC110503ECT | PFM/PWM Step-Up DC/DC Controller |
| TC110331ECT | PFM/PWM Step-Up DC/DC Controller |
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| TC1102 | 制造商:Thomas & Betts 功能描述:Bulk 制造商:Thomas & Betts 功能描述:CABLE MOUNTING STRIPS 2 BDL .5X3" 制造商:Thomas & Betts 功能描述:CABLE TIES |
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