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參數(shù)資料
| 型號： | TC1219ECHRT |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 20 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | EIAJ, SC-74, SOT-23A, 6 PIN |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 73K |
| 代理商： | TC1219ECHRT |
TC1219/1220-3 8/20/99
TC1219
TC1220
2001 Microchip Technology Inc.
DS21366A
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
相關PDF資料 |
PDF描述 |
|---|---|
| TC1220ECHRT | SWITCHED CAPACITOR CONVERTER, 56.3 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC1220ECH | 0.05 A SWITCHED CAPACITOR CONVERTER, 56.3 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC1221ECHRT | 0.05 A SWITCHED CAPACITOR CONVERTER, 169 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC1221ECHTR | 0.05 A SWITCHED CAPACITOR CONVERTER, 169 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC1225EUART | 0.01 A SWITCHED CAPACITOR CONVERTER, 12 kHz SWITCHING FREQ-MAX, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TC1219ECHTR | 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 |
| TC121A | 制造商:Thomas & Betts 功能描述:Fittings Connector 0.5inch Steel |
| TC121A-FA | 制造商:Thomas & Betts 功能描述:Fittings Connector 0.5inch Steel |
| TC121SC-50CP | 制造商:Thomas & Betts 功能描述:1/2" SET SCREW CONNECTOR 制造商:Thomas & Betts 功能描述:ADVANTAGES OF STEEL CITY COMMERCIAL CONDUIT FITTINGS |
| TC121TB | 制造商:Thomas & Betts 功能描述:Cable Accessories Snap In Mounting Base Cap Nylon 6.6 Natural Bulk |
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