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參數資料
| 型號： | TC1220ECHRT |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.05 A SWITCHED CAPACITOR CONVERTER, 56.3 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | SOT-23A, 6 PIN |
| 文件頁數： | 1/8頁 |
| 文件大小： | 85K |
| 代理商： | TC1220ECHRT |
TC1219/1220-3 8/20/99
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
TC1219
TC1220
SWITCHED CAPACITOR VOLTAGE CONVERTERS WITH SHUTDOWN
IN SOT PACKAGES
FEATURES
s
Charge Pumps in 6-Pin SOT-23A Package
s
>95% Voltage Conversion Efficiency
s
Voltage Inversion and/or Doubling
s
Operates from +2.5V to +5.5V
s
Up to 25 mA Output Current
s
Only Two External Capacitors Required
s
Low Power Consumption
s
Power-Saving Shutdown Mode
s
TC1220 Compatible with 1.8V Logic Systems
APPLICATIONS
s
LCD Panel Bias
s
Cellular Phones
s
Pagers
s
PDAs, Portable Dataloggers
s
Battery-Powered Devices
GENERAL DESCRIPTION
The TC1219/1220 are CMOS “charge-pump” voltage
converters in ultra-small 6-Pin SOT-23A packages. They
invert and/or double an input voltage which can range from
+2.5V to +5.5V. Conversion efficiency is typically >95%.
Switching frequency is 12 KHz for the TC1219, 35 KHz for
the TC1220. When the shutdown pin is held at a logic low,
the device goes into a very low power mode of operation,
consuming less than 1
A of supply current.
External component requirement is only two capacitors
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. Typical supply currents
are 60
A (TC1219), 115 A (TC1220).
All devices are available in 6-pin SOT-23A surface
mount packages.
TYPICAL OPERATING CIRCUIT
ORDERING INFORMATION
Osc. Freq.
Part No.
Package
(KHz)
Temp. Range
TC1219ECH
6-Pin SOT-23A* 12
– 40
°C to +85°C
TC1220ECH
6-Pin SOT-23A* 35
– 40
°C to +85°C
PIN CONFIGURATION
6-Pin SOT-23A*
NOTE: *6-Pin SOT-23A is equivalent to EIAJ SC-74
Negative Voltage Inverter
C+
GND
SHDN
C–
OUT
TC1219ECH
TC1220ECH
1
2
3
6
VIN
4
5
TC1219
TC1220
VIN
V–
OUTPUT
C+
C–
C1
C2
INPUT
GND
OUT
SHDN
ON
OFF
NOTE: *6-Pin SOT-23A is equivalent to EIAJ SC-74
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TC1220ECHTR | 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 |
| TC1221 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages |
| TC1221ECH | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages |
| TC1221ECHTR | 功能描述:電荷泵 Hi Freq 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 |
| TC1222 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:High Frequency Switched Capacitor Voltage Converters with Shutdown in SOT Packages |
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