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參數(shù)資料
| 型號(hào)： | IMP2187 |
| 廠商： | IMP INC. |
| 英文描述： | 60mA/110mA/160mA Super Low Dropout CMOS Regulators with Battery Life Extending Shutdown Mode and Adjustable 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電池壽命延長與關(guān)斷模式和可調(diào)輸出（高性能低壓差電壓穩(wěn)壓器） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 168K |
| 代理商： | IMP2187 |
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 TC1070/1071/1187
N
Lower Dropout Voltage For Long Battery Life
– IMP2070: 70mV vs. TelCom TC1070 120mV
– IMP2071: 160mV vs. TelCom TC1071 250mV
– IMP2187: 250mV vs. TelCom TC1187 400mV
N
Power Saving Shutdown Mode
– 0.2μA shutdown current
N
Adjustable Output Voltage
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
– IMP2070: 60mA
– IMP2071: 110mA
– IMP2187: 160mA
N
Over-Current and Over-Temperature Protection
N
Compact SOT-23A-5 Package
IMP20
70/7
1
1
, IMP2
1
1
8
8
7
7
P
OWER
M
ANAGEMENT
60mA/1
1
1
Super Lo
R
R
egulat
or
Ext
ending Shutdo
A
A
djus
t
t
able Output
0mA/1
w Dr
opout CMOS
s wit
h Batt
er
er
wn Mode and
60mA
y Lif
e
e
The IMP2070, IMP2071 and IMP2187 feature an adjustable output volt-
age. Compared to the pin compatible TC1070/1071/1187 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: IMP2070 (60mA), IMP2071 (110mA) and IMP2187
(160mA).
Typical Application
1
μ
F
R1
R1
R2
1
μ
F
+
R2
V
IN
IMP2070
IMP2071
IMP2187
V
OUT
ADJ
Shutdown*
Control
1
3
5
4
2
SHDN
2070/71_02.eps
GND
V
OUT
V
OUT
= V
REF
×
1 +
V
REF
= 1.2V
* Tie to V
IN
if not used.
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