S5J2188 [SECOS]
1.5A CMOS Low Dropout Voltage Regulator; 1.5A CMOS低压差稳压器
| 型号： | S5J2188 |
| 厂家： | 
SECOS HALBLEITERTECHNOLOGIE GMBH |
| 描述： | 1.5A CMOS Low Dropout Voltage Regulator |
| 文件： | 总7页 (文件大小：1248K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
RoHS Compliant Product
Description
positive,linear regulators feature low quiescent
The S5J2188 of
current (45µA typ.) with low dropout voltage, making them ideal
for battery applications. Output voltage are set at the factory and
trimmed to 1.5% accuracy.These rugged devices have both
Thermal Shutdown and Current Fold-back to prevent device failure
under the "Worst" of operating conditions. An additional feature is a
"Power Good" detector, which pulls low when the output is out of
with an output capacitance of
regulation.The S5J2188 is stable
4.7µF or greater.
Features
*
*
Low Temperature Coefficient
Over-Temperature Shutdown
Millimeter
Millimeter
Min. Max.
REF.
REF.
Min.
Max.
0.60
2.40
0.58
0.15
1.50
5.59
A
B
C
D
P
S
6.35
5.21
9.40
2.40
6.73
5.46
G
H
J
0.45
2.20
0.46
0
* Adjustable Version
* Very Low Dropout Voltage
* High Accurate 1.5%
10.20
3.00
K
L
* Short Circuit Current Fold-back
* Guaranteed 1.5A output
1.27 REF.
0.90
5.40
0.50
0.80
M
* Current Limiting
* Power-Saving Shutdown Mode
Applications
* PC Peripherals
* Wireless Devices
* Portable Electronics
Functional Block Diagram
* Battery Powered Widgets
* Instrumentation
Typical Application Circuit
S5J2188
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 1 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
Absolute Maximum Ratings
Ratings
Parameter
Symbol
Unit
V
Input Voltage
8
VIN
IOUT
VOUT
Topr
Tj
Output Current
mA
V
PD/(VIN-VO)
Output Voltage
Gnd-0.3~VIN+0.3
o
C
o
C
o
C
-40~+85
Operating Ambient Temperature
Junction Temperature
-40~+125
150
1.2
B
Tj Max.
PD
Max. Junction Temperature
oC)
Power Dissipation ( T=100
W
EDS Classification
Electrical Characteristics VIN=VOUT(T)+2V, VEN=VIN, TA=25к unless otherwise noted
Parameter
Symbol
Condition
Min
Typ
Max
Unit
V
OUT(T)
VOUT(E)
(Note1)
VEN=VEHmin, IO=1mA
-1.5%
1.5%
V
Output Voltage
(Note2)
V
OUT>1.2V
OUT>1.2V
1.5
-
-
-
A
A
IO
ILIM
Output Current
Current Limit
V
1.5
2.0
IO=1mA to 1.5A
-1
0.2
1
%
Load Regulation
REGLOAD
1.5V<VOUT(T)Љ2.0V
-
-
1300
800
600
-
I
O
=1.5A
2.0V<VOUT(T)Љ2.8V
mV
ꢀA
%
Dropout Voltage
Ground Pin Current
Line Regulation
VDROPOUT
IGND
-
-
-
V
O
=VOUT(E)-2%
2.8V<VOUT(T)
-
-
IO
=1mA~1.5A
45
-
VOUT(T)<2.0V
-0.15
-0.1
-0.4
Note3
-
0.15
0.1
0.4
7
I =1mA
O
2.0VЉVOUT(T)<4.0V
4.0VЉVOUT(T)
V
IN=VOUT
REGLINE
0.02
-
VOUT(T)+2
-
V
Input Voltage
VIN
Over Temperature Shutdown
Over Temperature Hysterisis
150
30
-
к
к
OTS
OTH
-
-
Output Voltage
Temperature Coefficient
-
30
-
ppm/к
TC
V
OUT<0.4V
-
-
750
-
-
-
mA
ꢀA
mA
V
ISC
IADJ
IMin
Short Circuit Current
ADJ Input Bias Current
Minimum Load Current
ADJ Reference Voltage
V
IN=5V, VADJ=1.242V
1
-
1
1.223 1.242 1.261
VREF
f=1kHz
-
-
50
20
-
-
Io=100mA
Co=4.7ꢀF ceramic
dB
Power Supply Rejection
Output Voltage Noise
EN Input Threshold
PSRR
eN
f=10kHz
f=10Hz~100kHz
Co=4.7ꢀF
-
30
-
ꢀVrms
Io=10mA,
V
IN=2.7V to 7V
IN=2.7V to 7V
IN=7V
EN= 0V, VIN=7V
IN=5V, VOUT=0V, VEN=0V
2.0
-
VIN
V
VEH
VEL
IEH
IEL
V
0
-
-
-
0.4
0.1
0.5
2
V
V
ꢀA
ꢀA
ꢀA
EN Input Bias Current
V
-
-
V
-
0.5
ISD
Shutdown Supply Current
Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when “VOUT (T) + 2.0V” is provided at the VIN pin while maintaining a
certain IOUT value).
2: VOUT (T) =Specified Output Voltage
3: VIN (MIN) =VOUT+VDROPOUT
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 2 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
Ordering Information(contd.)
Marking
Part Number
Output Voltage
Marking
Part Number
Output Voltage
8HAD2
XXXX
Adjustable
S5J 2188-ADJ
Detailed Description
The S5J2188 of COMS regulator contains a PMOS pass transistor, voltage reference, error amplifier, over-
current protection, and thermal shutdown.
The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal
protection circuits. During normal operation, the error amplifier compares the output voltage to a precision
reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds
140к, or the current exceeds 2.2A. During thermal shutdown, the output voltage remains low. Normal
operation is restored when the junction temperature drops below 120к.
The S5J2188 behaves like a current source when the load reaches 2.2A. However, if the load impedance
drops below 0.3Ω, the current drops back to 600mA to prevent excessive power dissipation. Normal operation
is restored when the load resistance exceeds 0.75Ω.
External Capacitors
The S5J2188 is stable with an output capacitance to ground of 4.7ꢀF or greater. Ceramic capacitors have the
lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the
highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are
comparatively expensive. One option is to parallel a 0.1ꢀF ceramic capacitor with a 10ꢀF Aluminum Electrolytic.
The benefit is low ESR, high capacitance, and low overall cost.
A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should
be at least 0.1ꢀF to have a beneficial effect.
All capacitors should be placed in close proximity to the pins. A “Quiet” ground termination is desirable. This
can be achieved with a “Star” connection.
Enable
When pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state,
the quiescent current is less than 1ꢀA. This pin behaves much like an electronic switch.
100kΩ resistor is necessary between VEN source and EN pin when VEN is higher than VIN.
(Note: there is no internal pull-up for EN PIN)
Adjustable Version
The adjustable version uses external feedback resistors to generate an output voltage anywhere from 1.5V to
5.0V. Vadj is trimmed to 1.242V and Vout is given by the equation:
VOUT=Vadj * (1+R1/R2)
Feedback resistors R1 and R2 should be high enough to keep quiescent current low, but increasing R1+R2 will
reduce stability. In general, R1 and R2 in the 10’s of kΩ will produce adequate stability, given reasonable
layout precautions. To improve stability characteristics, keep parasitic on the ADJ pin to minimum, and lower
R1 and R2 values.
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 3 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
Characteristics Curve
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 4 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 5 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 6 of 7
S5J2188
1.5A CMOS
Elektronische Bauelemente
Low Dropout Voltage Regulator
External Resistor Divider Table
Ω
Ω
R1(k )
R1(k
)
1
2
5
10
20
50
1
2
5
10
20
50
Ω
Ω
Ω
Ω
R2(k )=(1.242*R1(k ))/(VOUT-1.242)
R2(k )=(1.242*R1(k ))/(VOUT-1.242)
VOUT
VOUT
1.30
21.41 42.83 107.07 214.14 428.28 1070.7
11.50 23.00 57.50 115.00 230.00 575.00
7.86 15.72 39.30 78.61 157.22 393.04
5.97 11.94 29.86 59.71 119.42 298.56
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
4.50
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
0.63
0.62
0.60
0.59
0.58
0.56
0.55
0.54
0.53
0.52
0.51
0.50
0.49
0.48
0.47
0.46
0.45
0.44
0.43
0.43
0.42
0.41
0.41
0.40
0.39
0.39
0.38
0.38
0.37
0.36
0.36
0.35
0.35
0.34
0.34
0.33
0.33
1.27
1.24
1.21
1.18
1.15
1.13
1.10
1.08
1.05
1.03
1.01
0.99
0.97
0.95
0.93
0.92
0.90
0.88
0.87
0.85
0.84
0.83
0.81
0.80
0.79
0.77
0.76
0.75
0.74
0.73
0.72
0.71
0.70
0.69
0.68
0.67
0.66
3.17
3.09
3.02
2.95
2.88
2.81
2.75
2.69
2.63
2.58
2.53
2.48
2.43
2.38
2.34
2.29
2.25
2.21
2.17
2.14
2.10
2.06
2.03
2.00
1.97
1.94
1.91
1.88
1.85
1.82
1.80
1.77
1.75
1.72
1.70
1.67
1.65
6.34 12.69 31.72
6.19 12.37 30.93
6.03 12.07 30.17
5.89 11.78 29.46
5.76 11.51 28.78
5.63 11.25 28.13
5.50 11.00 27.50
5.38 10.76 26.91
5.27 10.53 26.34
5.16 10.32 25.79
5.05 10.11 25.26
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
4.81
4.03
3.47
3.04
2.71
2.44
2.23
2.04
1.89
1.75
1.64
1.54
1.45
1.37
1.30
1.23
1.17
1.12
1.07
1.03
0.99
0.95
0.91
0.88
0.85
0.82
0.80
0.77
0.75
0.73
0.71
0.69
0.67
0.65
9.63 24.07 48.14 96.28 240.70
8.06 20.16 40.32 80.65 201.62
6.94 17.35 34.69 68.39 173.46
6.09 15.22 30.44 60.88 152.21
5.42 13.56 27.12 54.24 135.59
4.89 12.22 24.45 48.90 122.24
4.45 11.13 22.26 44.52 111.29
4.09 10.21 20.43 40.86 102.14
4.95
4.86
4.76
4.67
4.59
4.50
4.42
4.35
4.27
4.20
4.13
4.06
4.00
3.93
3.87
3.81
3.75
3.70
3.64
3.59
3.54
3.49
3.44
3.40
3.35
3.30
9.90 24.76
9.71 24.28
9.52 23.81
9.35 23.36
9.17 22.93
9.01 22.52
8.85 22.12
8.69 21.73
8.54 21.35
8.40 20.99
8.26 20.64
8.12 20.31
7.99 19.98
7.87 19.66
7.74 19.36
7.62 19.06
7.51 18.77
7.40 18.49
7.29 18.22
7.18 17.96
7.08 17.70
6.98 17.45
6.88 17.21
6.79 16.98
6.70 16.75
6.61 16.52
3.78
3.51
3.28
3.07
2.90
2.74
2.59
2.46
2.35
2.24
2.15
2.06
1.97
1.90
1.83
1.76
1.70
1.65
1.59
1.54
1.50
1.45
1.41
1.37
1.34
1.30
9.44 18.88 37.75 94.38
8.77 17.54 35.08 87.71
8.19 16.39 32.77 81.93
7.69 15.37 30.74 76.86
7.24 14.48 28.95 72.38
6.84 13.68 27.36 68.39
6.48 12.96 25.93 64.82
6.16 12.32 24.65 61.61
5.87 11.74 23.48 58.70
5.60 11.21 22.42 56.05
5.36 10.73 21.45 53.63
5.14 10.28 20.56 51.41
4.94
4.75
4.57
4.41
4.26
4.12
3.99
3.86
3.75
3.64
3.53
3.43
3.34
3.25
9.87 19.75 49.36
9.50 18.99 47.48
9.15 18.29 45.73
8.82 17.64 44.11
8.52 17.04 42.59
8.24 16.47 41.18
7.97 15.94 39.86
7.72 15.45 38.62
7.49 14.98 37.45
7.27 14.54 36.36
7.06 14.13 35.32
6.87 13.74 34.35
6.68 13.37 33.42
6.51 13.02 32.55
Ω
Note: Small load (greater than 2mA) is necessary as R1 or R2 is larger than 50k . Otherwise, output voltage probably can not be pulled
down to 0V on disable mode.
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 7 of 7
相关型号：
©2020 ICPDF网 联系我们和版权申明