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參數資料
| 型號： | TC1121CUA |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 100mA Charge Pump Voltage Converter with Shutdown |
| 中文描述： | 100mA的電荷泵電壓轉換器，具有關斷 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 442K |
| 代理商： | TC1121CUA |
2002 Microchip Technology Inc.
DS21358B-page 1
M
TC1121
Features
Optional High-Frequency Operation Allows Use of
Small Capacitors
Low Operating Current (FC = GND)
- 50
μ
A
High Output Current (100mA)
Converts a 2.4V to 5.5V Input Voltage to a
Corresponding Negative Output Voltage
(Inverter Mode)
Uses Only 2 Capacitors; No Inductors Required
Selectable Oscillator Frequency
- 10kHz to 200kHz
Power-Saving Shutdown Input
Available in 8-Pin MSOP, 8-Pin PDIP and 8-Pin
Small Outline (SOIC) Packages
Applications
Laptop Computers
Medical Instruments
Disk Drives
μ
P-Based Controllers
Process Instrumentation
Device Selection Table
Package Type
General Description
The TC1121 is a charge pump converter with 100mA
output current capability. It converts a 2.4V to 5.5V
input to a corresponding negative output voltage. As
with all charge pump converters, the TC1121 uses no
inductors saving cost, size and EMI.
An on-board oscillator operates at a typical frequency
of 10kHz (at V
+
= 5V) when the frequency control input
(FC) is connected to ground. The oscillator frequency
increases to 200kHz when FC is connected to V
+
,
allowing the use of smaller capacitors. Operation at
sub-10kHz frequencies results in lower quiescent
NScurrent and is accomplished with the addition of an
external capacitor from OSC (pin 7) to ground. The
TC1121 also can be driven from an external clock
NSconnected OSC. Typical supply current at 10kHz is
50
μ
A, and falls to less than 1
μ
A when the shutdown
input is brought low, whether the internal or an external
clock is used. The TC1121 is available in 8-pin SOIC,
MSOP and PDIP packages.
Part
Number
Package
Operating
Temp.
Range
TC1121COA
TC1121CPA
TC1121CUA
TC1121EOA
TC1121EPA
TC1121EUA
8-Pin SOIC
8-Pin PDIP
8-Pin MSOP
8-Pin SOIC
8-Pin PDIP
8-Pin MSOP
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TC1121COA
TC1121EOA
TC1121CUA
TC1121EUA
SHDN
FC
CAP
+
CAP
–
1
2
3
4
8
7
6
5
GND
OSC
V+
8-Pin SOIC
8-Pin MSOP
V
OUT
TC1121CPA
TC1121EPA
SHDN
FC
CAP
+
CAP
–
1
2
3
4
8
7
6
5
GND
OSC
V+
8-Pin PDIP
V
OUT
100mA Charge Pump Voltage Converter with Shutdown
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| TC1121EOA | 100mA Charge Pump Voltage Converter with Shutdown |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TC1121CUA713 | 功能描述:電荷泵 w/ Shutdown 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 |
| TC1121EOA | 功能描述:電荷泵 w/ Shutdown 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 |
| TC1121EOA | 制造商:Microchip Technology Inc 功能描述:DC/DC Charge Pump Converter IC |
| TC1121EOA713 | 功能描述:電荷泵 w/ Shutdown 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 |
| TC1121EPA | 功能描述:電荷泵 w/ Shutdown 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 |
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