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PDF AMS5318 Data sheet ( Hoja de datos )
| Número de pieza | AMS5318 | |
| Descripción | Low Quiescent Current_Low Dropout CMOS Voltage Regulator | |
| Fabricantes | AMOS | |
| Logotipo |  |
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Low Quiescent Current_Low Dropout CMOS Voltage Regulator
AMS53XX Series 500mA
The AMS53XX series is a family of Low Quiescent
Low Dropout Positive regulators. developed using
CMOS technology.
These ICS perform with high output voltage
accuracy, low quiescent current , Output current
500mA,
The allow operation voltage as high as 10V.
■ Ferture：
·high output voltage accuracy
±2％
·low dropout voltage
1.5mV Iout=1mA
·low quiescent current
⒈2uA
·Max input voltage
10V
·Output current
500mA
■ Applications
·Power source for home electric/electronic appliances
·Power source for battery-powered devices
·Power source for personal communication devices
■ Selection table
Part NO.
Output voltage
(Note)
Tolerance
MARK
SOT-89 TO-92
MARK
SOT-23-3
AMS5312
AMS5315
AMS5318
AMS5321
AMS5325
AMS5327
1.2V
1.5V
1.8V
2.1V
2.5V
2.7V
±2%
±2%
±2%
±2%
±2%
±2%
MD5-12
MD5-15
MD5-18
MD5-21
MD5-25
MD5-27
M512
M515
M518
M521
M525
M527
AMS5328
2.8V
±2%
MD5-28
M528
AMS5330
3.0V
±2%
MD5-30
M530
AMS5333
3.3V
±2%
MD5-33
M533
AMS5336
3.6V
±2%
MD5-36
M536
AMS5338
3.8V
±2%
MD5-38
M538
AMS5344
4.4V
±2%
MD5-44
M544
AMS5350
5.0V
±2%
MD5-50
M550
NOTE: for semi_custom parts selectable output voltage from 1.2~7.0V in 0.1v
increment
1
1 page  
AMS53XX series（MD5327，Output voltage +2.7V） （Ta=25℃ unless otherwise specified）
ITEM
SYMBOL
Output voltage
Output current
*1
Dropout voltage
*2
Line regulation
Load regulation
VOUT
IOUT
Vdrop
△VOUT1
△VIN·VOUT
△VOUT2
Temperature
coefficient
Current
consumption
△VOUT
△Ta·VOUT
ISS1
CONDITIONS
VIN= 3.7V，IOUT=50mA
VIN= 3.7V
IOUT=10 mA
IOUT=200 mA
3.7V≤VIN≤10V
IOUT=1mA
VIN=3.7V
1.0mA≤IOUT≤150mA
VIN=3.7V，IOUT=10mA
-40℃≤Ta≤85℃
VIN=10V No Load
MIN TYPE MAX
2.646 2.7 2.754
400
12 18
220 300
0.05 0.2
UNITS
V
mA
mV
Test
circuits
1
3
1
％/V
25 40
mV
±50 ±100 Ppm/℃
1.2 2.5
uA
2
Input voltage
Short current
limit
VIN
Ilim
--
Vout=0V
10
50 70
V
mA
AMS53XX series（MD5328，Output voltage +2.8V） （Ta=25℃ unless otherwise specified）
ITEM
SYMBOL
Output voltage
Output current
*1
Dropout voltage
*2
Line regulation
Load regulation
VOUT
IOUT
Vdrop
△VOUT1
△VIN·VOUT
△VOUT2
Temperature
coefficient
Current
consumption
△VOUT
△Ta·VOUT
ISS1
CONDITIONS
VIN= 3.8V，IOUT=50mA
VIN= 3.8V
IOUT=10 mA
IOUT=200 mA
3.8V≤VIN≤10V
IOUT=1mA
VIN=3.8V
1.0mA≤IOUT≤150mA
VIN=3.8V，IOUT=10mA
-40℃≤Ta≤85℃
VIN=10V No Load
MIN TYPE MAX
2.744 2.8 2.856
400
12 18
220 300
0.05 0.2
UNITS
V
mA
mV
Test
circuits
1
3
1
％/V
25 40
mV
±50 ±100 Ppm/℃
1.2 2.5
uA
2
Input voltage
VIN
--
10 V
Short current
limit
Ilim
Vout=0V
50 70
mA
5
5 Page 
4. Load regulation (ΔVOUT2)
This parameter indicates the output current dependence on the output voltage. That is,
the value shows how much the output voltage changes due to a change in the output current
with the input voltage remained unchanged.
5. Dropout voltage (Vdrop)
This parameter indicates the difference between the input voltage (VIN1) and the output
voltage when
output voltage falls to 98 % of VOUT(E) by gradually decreasing the input voltage (VIN).
Vdrop = VIN1-[VOUT(E) × 0.98]
■Description of Operation
1.Basic Operation
Figure 8 shows the block diagram of the AMS53XX series.The error amplifier compares
a reference voltage Vref with a part of the output voltage divided by the feedback
resistors Rs and Rf, and supplies the gate voltage to the output transistor, necessary
to ensure certain output voltage independent from change of input voltage and
temperature.
VIN
Current sauce
Vref
Error amplifier
-
+
*1
VOUT
Rf
Vfb
Reference Voltage circuit
VSS
*1. Parasitic diode
Figure 8
Rs
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet AMS5318.PDF ] | |
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