|
|
PDF AMS2951 Data sheet ( Hoja de datos )
| Número de pieza | AMS2951 | |
| Descripción | 150mA LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | Advanced Monolithic Systems | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AMS2951 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
|
No Preview Available !
Advanced
Monolithic
Systems
AMS2950/AMS2951
150mA LOW DROPOUT VOLTAGE REGULATOR
FEATURES
• 5.0V, 3.3V, 3.0V and 2.5V Versions
• High Accuracy Output Voltage
• Extremely Low Quiescent Current
• Low Dropout Voltage
• Extremely Tight Load and Line Regulation
• Very Low Temperature Coefficient
• Current and Thermal Limiting
• Needs Minimum Capacitance (1µF) for Stability
• Unregulated DC Positive Transients 60V
ADDITIONAL FEATURES (AMS2951 ONLY)
• 1.24V to 29V Programmable Output
• Error Flag Warning of Voltage Output Dropout
• Logic Controlled Electronic Shutdown
APPLICATIONS
• Battery Powered Systems
• Portable Consumer Equipment
• Cordless Telephones
• Portable (Notebook) Computers
• Portable Instrumentation
• Radio Control Systems
• Automotive Electronics
• Avionics
• Low-Power Voltage Reference
GENERAL DESCRIPTION
The AMS2950 and AMS2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These
devices feature very low quiescent current (typ.75µA), and very low dropout voltage (typ.45mV at light loads and 380mV at
150mA) thus prolonging battery life. The quiescent current increases only slightly in dropout. The AMS2950/AMS2951 has
positive transient protection up to 60V and can survive unregulated input transient up to 20V below ground.
The AMS2950 and AMS2951 were designed to include a tight initial tolerance (typ. 0.5%), excellent load and line regulation
(typ. 0.05%), and a very low output voltage temperature coefficient, making these devices useful as a low-power voltage
reference.
The AMS2950 is offered in the 3-pin TO-92 package. AMS2951 is available in 8-pin plastic SOIC and DIP packages and
offers three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries
on input. The AMS2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and
off. The AMS2951 device may be pin-strapped for a 5.0V, 3.3V, 3.0V or 2.5 output, or programmed from 1.24V to 29V with
an external pair of resistors.
ORDERING INFORMATION
PACKAGE TYPE
TO-92
8 LEAD PDIP 8 LEAD SOIC
AMS2950ACN-X AMS2951ACP- AMS2951ACS-X
AMS2950CN-X AMS2951CP-X AMS2951CS-X
X = 3.3V, 3.0V, 2.5V
OPERATING
TEMP. RANGE
IND.
IND
PIN CONNECTION
8L SOIC/ 8L PDIP
OUTPUT 1
SENSE 2
SHUTDOWN 3
GROUND 4
8 INPUT
7 FEEDBACK
6 VTAP
5 ERROR
Top View
OUTPUT
TO-92
INPUT
GND
Bottom View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
AMS2950/AMS2951
Quiescent Current
10
1
0.1
0.01
0.1
1 10
LOAD CURRENT (mA)
150
Dropout Characteristics
6
5V OUTPUT
5
4 RL= 50 kΩ
3
RL= 50Ω
2
1
0
0 1 234 5
INPUT VOLTAGE (V)
6
Input Current
250
225 5V OUTPUT
200 RL= 50 kΩ
175
150
125
100 RL= ∞
75
50
25
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
Input Current
270
240 5V OUTPUT
210
180
150 RL= 50Ω
120
90
75
60
45
30
15
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
Temperature Drift of 3
Representative Units
5.06
5V OUTPUT
5.04
5.02
5.0
4.98
4.96
0.2%
4.94
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (° C)
Quiescent Current
160
5V OUTPUT
140
120
100 IL= 1 mA
80
IL= 0
60
40
20
0
01 234567
INPUT VOLTAGE (V)
8
Quiescent Current
120
5V OUTPUT
110
100
IL= 100µA
VIN= 6V
90
80
70
60
50
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (° C)
Quiescent Current
10
5V OUTPUT
9
VIN= 6V
IL= 150mA
8
7
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (° C)
Quiescent Current
8
5V OUTPUT
7
6
5
IL= 150mA
4
3
2
1
0
01 234567
INPUT VOLTAGE (V)
8
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
5 Page 
TYPICAL APPLICATIONS (Continued)
Low Drift Current Source
+V = 2 30V
IL LOAD
8
VIN
VOUT 1
AMS2951
SHUTDOWN
INPUT
3
SD
GND
FB
47
R
1%
1µF +
0.1µF
AMS2950/AMS2951
5Volt Current Limiter
5V BUS
+VIN
AMS2950 -5.0
VOUT
*VOUT ≈ 5V
GND
1µF
*Minimum Input-Output voltage ranges from 40mV to 400mV, depending on
load current. Current limit is typically 160 mA
5V Regulator with 2.5V Sleep Function
*SLEEP
INPUT
+VIN
C - MOS
GATE
47kΩ
8
ERROR
OUPUT
+VIN
5 ERROR
VOUT 1
AMS2951
SHUTDOWN
INPUT
3
SD
GND
FB
47
470kΩ
+VOUT
100pF
200kΩ
2N3906
1% +
100kΩ
3.3µF
1%
100kΩ
Open Circuit Detector for 4 to 20mA Current Loop
4 20mA
1N4001
0.1µF
8
+VIN
VOUT 1
AMS2951
7
FB
GND
4
1N457
+5V
4.7kΩ
1
*OUTPUT
5
4
2
360
MIN. VOLTAGE ≈ 4V
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AMS2951.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AMS2950 | 150mA LOW DROPOUT VOLTAGE REGULATOR | Advanced Monolithic Systems |
| AMS2951 | 150mA LOW DROPOUT VOLTAGE REGULATOR | Advanced Monolithic Systems |
| AMS2954 | 250mA LOW DROPOUT VOLTAGE REGULATOR | Advanced Monolithic Systems |
| AMS2954AC-25 | 250mA LOW DROPOUT VOLTAGE REGULATOR | Advanced Monolithic Systems |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |