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参数资料
| 型号： | TC126331ECT |
| 元件分类： | 稳压器 |
| 英文描述： | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | EIAJ, SC-74A, SOT-23A, 5 PIN |
| 文件页数： | 1/12页 |
| 文件大小： | 524K |
| 代理商： | TC126331ECT |
2007 Microchip Technology Inc.
DS21372D-page 1
TC125/TC126
Features:
Assured Start-up at 0.9V
PFM (100 kHz Max. Operating Frequency)
40
μA Maximum Supply Current
(VOUT = 3V @ 30 mA)
0.5
μA Shutdown Mode (TC125)
Voltage Sense Input (TC126)
Requires Only Three External Components
80 mA Maximum Output Current
Small Package: 5-Pin SOT-23
Applications:
Palmtops/PDAs
Battery-Operated Systems
Cameras
Portable Communicators
Device Selection Table
*Other output voltages are available. Please contact
Microchip Technology Inc. for details.
Package Type
General Description:
The TC125/126 step-up (Boost) switching regulators
furnish output currents to a maximum of 80 mA
(VIN =2V, VOUT = 3V) with typical efficiencies above
80%. These devices employ pulse frequency modula-
tion (PFM) for minimum supply current at low loads.
They are ideal for battery-operated applications
powered from one or more cells. Maximum supply
current is less than 70
μA at full output load, and less
than 5
μA in standby (VOUT = 3V). Both devices require
only an external inductor, diode, and capacitor to
implement a complete DC/DC regulator.
The TC126 has separate output voltage sensing and
chip power inputs for greater application flexibility. The
TC125 combines the output voltage sensing and chip
power inputs onto a single package pin, but adds a
power-saving Shutdown mode that suspends regulator
operation and reduces supply current to less than 0.5
μA when the shutdown control input (SHDN) is low.
The TC125/TC126 are available in a small 5-Pin
SOT-23 package, occupy minimum board space and
use small external components. The TC125 accepts
input voltages from 2V to 10V. The TC126 accepts
input voltages from 2.2V to 10V. Both the TC125 and
TC126 have a start-up voltage of 0.9V at light load.
Typical Application
Part
Number
Output
Voltage
(V)*
Package
Operating
Temp.
Range
TC125501ECT
5.0
5-Pin SOT-23
-40
°C to +85°C
TC125331ECT
3.3
5-Pin SOT-23
-40
°C to +85°C
TC125301ECT
3.0
5-Pin SOT-23
-40
°C to +85°C
TC126501ECT
5.0
5-Pin SOT-23
-40
°C to +85°C
TC126331ECT
3.3
5-Pin SOT-23
-40
°C to +85°C
TC126301ECT
3.0
5-Pin SOT-23
-40
°C to +85°C
5-Pin SOT-23
NOTE: 5-Pin SOT-23 is equivalent to the EIAJ SC-74A
VDD
SENSE
TC125
1
23
5
4
PS
LX
GND
NC
SHDN
TC126
1
23
5
4
LX
GND
NC
3V
2 x "AA"
Cell
+
–
Two Cell to 5V Boost Regulator
1
2
3
5
4
TC125
LX
SHDN
NC
PS
GND
MA735
+
VIN
Sumida
100 mH CD54
VOUT
5V @80 mA
47
F/16V
Tantalum
PFM Step-Up DC/DC Regulators
Obsolete Device
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC126331ECTTR | 功能描述:直流/直流开关调节器 PFM Step-up DC/DC RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TC126333ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM Step-Up DC/DC Regulators |
| TC1263-5.0VAT | 功能描述:低压差稳压器 - LDO 500mA Fixed Out Adj RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TC1263-5.0VET | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:500 mA, Fixed-Output, CMOS LDO with Shutdown |
| TC1263-5.0VETTR | 功能描述:低压差稳压器 - LDO 500mA Fixed Out Adj RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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