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参数资料
| 型号： | TCM851COA |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 120 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 1/8页 |
| 文件大小： | 57K |
| 代理商： | TCM851COA |
TCM850
TCM851
TCM852
TCM853
TC850/1/2/3-3 10/1/96
EVALUATION
KIT
AVAILABLE
2001 Microchip Technology Inc.
DS21489A
5V TO
±10V VOLTAGE CONVERTER +B122+B124 REGULATED GaAs
FET BIAS SUPPLY
FEATURES
s
Fixed – 4.1V or Adjustable – 0.5V to – 9V Output
at 5mA
s
4.5V to 10V Input Voltage Range
s
Low Output Voltage Ripple
TCM850-852 .............................................. 2mVp-p
TCM853 ...................................................... 1mVp-p
s
100kHz Charge Pump Switching Frequency
s
Optional External Synchronizing Clock
Input (TCM852)
s
Logic Level Shutdown Mode ................ 0.5
A Typ.
Temperature (TCM850/852/853)
s
Low Cost, 8-Pin SOIC Package
APPLICATIONS
s
Cellular Phones
s
Negative Regulated Power Supplies
s
LCD Bias Contrast Control
s
Adjustable GaAs SET Bias
s
Wireless Data Loggers
GENERAL DESCRIPTION
The TCM850/1/2/3 combines an inverting charge pump
and a low noise linear regulator in a single small outline
package. They are ideal for biasing GaAS FETs in cellular
telephone transmitter power amplifiers
All four devices accept a range of input voltages from
4.5V to 10.0V and have – 5mA output current capability. The
TCM850/1/2 have both preset (– 4.1V) and variable (– 0.5V
to –9.0V) output voltages that program with an external
resistor divider. The TCM853 output voltage programs with
an external positive control voltage. The TCM850/1/3 can
be shutdown reducing quiescent current to less than
0.5
A (typ) over temperature, 2A (typ) for the TCM851.
CHARGE
PUMP
GND
N
FB
(GND to SET
VOUT = – 4.1V)
OUT
NEGOUT
SHDN (TCM850)
SHDN (TCM851)
OSC (TCM852)
IN
TCM850
TCM851
TCM852
+
–
– 1.28V
REF
CHARGE
PUMP
GND
CONT
(CONTROL VOLTAGE)
OUT
NEGOUT
SHDN
IN
TCM853
+
–
N
C1
C2
C3
C2
C4
C3
C1
+
C1
–
C1
+
C1
–
ORDERING INFORMATION
Part No.
Package
Temp. Range
TCM850COA
8-Pin SOIC
0
°C to +70°C
TCM850EOA
8-Pin SOIC
– 40
°C to +85°C
TCM851COA
8-Pin SOIC
0
°C to +70°C
TCM851EOA
8-Pin SOIC
– 40
°C to +85°C
TCM852COA
8-Pin SOIC
0
°C to +70°C
TCM852EOA
8-Pin SOIC
– 40
°C to +85°C
TCM853COA
8-Pin SOIC
0
°C to +70°C
TCM853EOA
8-Pin SOIC
– 40
°C to +85°C
TCM850EV
Evaluation Kit for TCM850/1/2/3
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
相关PDF资料 |
PDF描述 |
|---|---|
| TCM850EOA | SWITCHED CAPACITOR CONVERTER, 120 kHz SWITCHING FREQ-MAX, PDSO8 |
| TCS1AD | SPECIALTY ANALOG CIRCUIT, XMA |
| TCS20DPR | SPECIALTY ANALOG CIRCUIT, PDSO3 |
| TCS7547-01-401 | 4 CONTACT(S), BOARD MOUNT, MINI DIN CONNECTOR, SOCKET |
| TCS7737-242080 | 4 CONTACT(S), BOARD MOUNT, MINI DIN CONNECTOR, SOCKET |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TCM851EOA | 制造商:Microchip Technology Inc 功能描述:Charge Pump STPDN -0.5V to -9V/-4.1V 5mA 8-Pin SOIC N |
| TCM852 | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:REGULATED GaAs FET BIAS SUPPLY |
| TCM852COA | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:REGULATED GaAs FET BIAS SUPPLY |
| TCM852EOA | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:REGULATED GaAs FET BIAS SUPPLY |
| TCM853 | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:REGULATED GaAs FET BIAS SUPPLY |
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