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参数资料
| 型号： | TC110301ECTTR |
| 厂商： | Microchip Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM SOT23A-5 |
| 标准包装： | 3,000 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 115kHz |
| 占空比： | 92% |
| 电源电压： | 2 V ~ 10 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SC-74A，SOT-753 |
| 包装： | 带卷 (TR) |
TC110
PFM/PWM Step-Up DC/DC Controller
Features
General Description
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?
?
?
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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
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
? Programmable Soft-Start
? 84% Typical Efficiency
? Small Package: 5-Pin SOT-23A
Applications
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.
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?
?
?
Palmtops
Battery-Operated Systems
Positive LCD Bias Generators
Portable Communicators
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
Device Selection Table
Output
Part
Voltage Package
Number
(V)*
Osc.
Freq.
(kHz)
Operating
Temp.
Range
Battery
3V
+
–
10 μ F
+
47 μ H
D1
IN5817
Si9410DY
47 μ F
+
V OUT
TC110501ECT
TC110331ECT
TC110301ECT
TC110503ECT
5.0
3.3
3.0
5.0
5-Pin SOT-23A
5-Pin SOT-23A
5-Pin SOT-23A
5-Pin SOT-23A
100
100
100
300
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
5
EXT
TC110
4
GND
Tantalum
TC110333ECT
TC110303ECT
3.3
3.0
5-Pin SOT-23A
5-Pin SOT-23A
300
300
-40 ° C to +85 ° C
-40 ° C to +85 ° C
V OUT
1
V DD
2
SHDN/SS
3
*Other output voltages are available. Please contact
Microchip Technology Inc. for details.
Package Type
5-Pin SOT-23A
R
C
3V to 5V Supply
OFF ON
*RC Optional
EXT
5
TC110
GND
4
1
2
3
V OUT
V DD SHDN/SS
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A
2002 Microchip Technology Inc.
DS21355B-page 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC110303ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Controller |
| TC110303ECTTR | 功能描述:开关变换器、稳压器与控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TC110331ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Controller |
| TC110331ECTTR | 功能描述:开关变换器、稳压器与控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TC110333ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Controller |
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