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參數(shù)資料
| 型號(hào)： | TCM828ECT |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | 0.05 A SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | SOT-23A, 5 PIN |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 63K |
| 代理商： | TCM828ECT |
TCM828/829-4 5/22/00
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
TCM828
TCM829
Switched Capacitor Voltage Converters
FEATURES
s
Charge Pump in 5-Pin SOT-23A Package
s
>95% Voltage Conversion Efficiency
s
Voltage Inversion and/or Doubling
s
Low 50
A (TCM828) Quiescent Current
s
Operates from +1.5V to +5.5V
s
Up to 25mA Output Current
s
Only Two External Capacitors Required
APPLICATIONS
s
LCD Panel Bias
s
Cellular Phones
s
Pagers
s
PDAs, Portable Dataloggers
s
Battery-Powered Devices
GENERAL DESCRIPTION
The TCM828/829 are CMOS “charge-pump” voltage
converters in ultra-small 5-Pin SOT-23A packages. They
invert and/or double an input voltage which can range from
+1.5V to +5.5V. Conversion efficiency is typically >95%.
Switching frequency is 12kHz for the TCM828 and 35kHz for
the TCM829.
External component requirement is only two capacitors
(3.3
F nominal) for standard voltage inverter applications.
With a few additional components a positive doubler can
also be built. All other circuitry, including control, oscillator,
power MOSFETs are integrated on-chip. Supply current
is 50
A (TCM828) and 115A (TCM829).
The TCM828 and TCM829 are available in a 5-Pin
SOT-23A surface mount package.
TYPICAL OPERATING CIRCUIT
ORDERING INFORMATION
Part No.
Package
Temp. Range
TCM828ECT
5-Pin SOT-23A
– 40
°C to +85°C
TCM829ECT
5-Pin SOT-23A
– 40
°C to +85°C
NOTE: 5-Pin SOT-23A is equivalent to EIAJ SC-74A.
PIN CONFIGURATION
TCM828
TCM829
VIN
V–
OUTPUT
C+
C–
C1
C2
INPUT
GND
OUT
C+
C–
OUT
TCM828ECT
TCM829ECT
1
2
3
5
GND
VIN
4
*5-Pin SOT-23A
NOTE: *5-Pin SOT-23A is equivalent to EIAJ SC-74A
Voltage Inverter
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TCM828ECT713 | 功能描述:電荷泵 Switched CAP RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| TCM828VT | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Switched Capacitor Voltage Converters |
| TCM828VT713 | 制造商:Microchip Technology Inc 功能描述: |
| TCM829 | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Switched Capacitor Voltage Converters |
| TCM829ECT | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Switched Capacitor Voltage Converters |
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