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參數(shù)資料
| 型號(hào)： | IMP2055 |
| 廠商： | IMP INC. |
| 英文描述： | 60mA/110mA/160mA Super Low Dropout CMOS Regulators with Battery Life Extending Shutdown Mode and ERROR Output(高性能低壓差電壓穩(wěn)壓器) |
| 中文描述： | 60mA/110mA/160mA超低壓差穩(wěn)壓器的CMOS電池壽命延長(zhǎng)與關(guān)斷模式和錯(cuò)誤輸出（高性能低壓差電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 170K |
| 代理商： | IMP2055 |
1999 IMP, Inc.
408-432-9100/www.impweb.com
1
Key Features
Applications
N
Pagers
N
Cellular/GSM/PHS Phones
N
Instrumentation
N
Wireless Terminals
N
Battery Powered Systems
N
Medical Instruments
N
Linear Post-Regulators
N
Pin Compatible with TelCom TC1054/1055/1186
N
Lower Dropout Voltage for Long Battery Life
– IMP2054: 70mV vs. TelCom TC1054 120mV
– IMP2055: 160mV vs. TelCom TC1055 250mV
– IMP2186: 250mV vs. TelCom TC1186 400mV
N
Power Saving Shutdown Mode
– 0.2μA shutdown current
N
ERROR Output
– Low battery detection
– Processor reset
N
Superior Load Regulation
– 0.32%
N
Long Battery Life
– 33μA no load ground current
N
Accurate Output Voltage
– ± 2.5% over temperature
N
Low Drift Output: 40ppm/
°
C
N
Guaranteed Minimum Output Current
– IMP2054: 60mA
– IMP2055: 110mA
– IMP2186: 160mA
N
Over-Current and Over-Temperature Protection
N
Compact SOT-23A-5 Package
IMP205
4/55, IMP2
1
1
86
P
OWER
M
ANAGEMENT
60mA/1
1
1
Super Lo
R
R
egulat
or
Ext
ending Shutdo
ERR
OR Output
0mA/1
w Dr
opout CMOS
s wit
h Batt
er
er
wn Mode and
60mA
y Lif
e
e
The IMP2054, IMP2055 and IMP2186 high performance CMOS low
dropout voltage regulators offer superior dropout voltage performance
and load regulation characteristics as compared to the pin compatible
TC1054/1055/1186 devices offered by TelCom Semiconductor. Dropout
voltage performance has been improved by up to 40%.
Load regulation and power supply PSRR have been optimized. Load
regulation is typically 0.32% and PSRR is 53dB at 1kHz.
A logic input controlled shutdown mode extends system battery life by
reducing quiescent current to 0.2
μ
Amaximum. The shutdown mode can
be initiated by a system microcontroller.
The regulators were designed with ease of use and stability in mind.
Stability is guaranteed for 0.47
μ
F and greater load capacitors with an
ESR up to 5
. Ceramic or tantalum capacitors can be used.
Three devices with different guaranteed output current specifications
are available: IMP2054 (60mA), IMP2055 (110mA) and IMP2186
(160mA). Each device has output voltage options of 2.5V, 2.7V, 2.85V,
3.0V, 3.3V, 3.6V and 4.0V.
Typical Application
1
μ
F
1M
1
μ
F
+
V
IN
IMP2054
IMP2055
IMP2186
V
OUT
ERROR
Shutdown*
Control
1
3
5
4
2
SHDN
2054/55_02.eps
GND
V
OUT
* Tie to V
IN
if not used.
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