S5M2111 [SECOS]
CMOS Positive Voltage Regulator; CMOS正电压稳压器
| 型号： | S5M2111 |
| 厂家： | 
SECOS HALBLEITERTECHNOLOGIE GMBH |
| 描述： | CMOS Positive Voltage Regulator |
| 文件： | 总5页 (文件大小：1204K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
S5M2111
CMOS
Elektronische Bauelemente
Positive Voltage Regulator
RoHS Compliant Product
Description
The S5M2111 series positive,linear regulators feature low quiescent
current (50µA typ.) with low dropout voltage, voltage and excellent
PSRR, thus making them ideal for Telecommunications and other
battery applications. These rugged devices have both Thermal Shut-
down, and Current Fold-back to prevent device failure under the
"Worst" of operating conditions. As an additional feature, the S5M2111
is stable with an output capacitance of just extended 0.22µF or
greater.
Features
*
Excellent PSRR Type 70dB
Millimeter
Dimensions
*
REF.
REF.
Over-Temperature Shutdown
Min.
Max.
4.60
4.25
1.70
1.50
2.60
-
Millimeter
3.00 REF.
1.50 REF.
* Factor Per-Set Output Voltage
* Very Low Dropout Voltage
A
B
C
D
E
F
4.40
4.05
1.50
1.30
2.40
0.80
G
H
I
J
K
L
0.40
1.40
0.35
0.52
1.60
0.41
* Noise Reduction Bypass Capacitor
* Short Circuit Current Fold-back
* Guaranteed 150mA output
5 ° TYP.
* Current Limiting
* Power-Saving Shutdown Mode
Applications
* PC Peripherals
* Wireless Devices
* Portable Electronics
* Battery Powered Widgets
* Instrumentation
Functional Block Diagram
* Cameras
* Cellular Phones
* Telecommunications
* Electronic Scales
* Cordless Phones
Typical Application Circuit
S5M2111
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 1 of 5
S5M2111
CMOS
Elektronische Bauelemente
Positive Voltage Regulator
Absolute Maximum Ratings
Ratings
6
Parameter
Symbol
Unit
V
Input Voltage
VIN
IOUT
VOUT
Topr
Tj
Output Current
mA
V
PD/(VIN-VO)
1.5~3.3
-40~+85
Output Voltage
o
C
o
C
o
C
Operating Ambient Temperature
Junction Temperature
-40~+125
150
Tj Max.
PD
Max. Junction Temperature
oC)
Power Dissipation ( T=100
550
mW
EDS Classification
B
Electrical Characteristics TA=25ć unless otherwise noted
(VOUT(T)>2.0V VIN=VOUT(T)+0.5V; VOUT(T)≤2.0V VIN=VOUT(T)+1V; VSHDN=VIN, CIN=COUT=1uF)
Parameter
Symbol
Condition
=0.1mA, VOUT(T)≥2.0V
Min
-1.0
-1.5
-2.0
150
-
TYP
Max
1.0
1.5
2.0
-
Unit
I
O
VOUT(T)
VOUT(E)
(Note1)
%
Output Voltage
IO
=0.1mA, VOUT(T)<2.0V
=150mA
>800mV
=0V
(Note2)
IO
ILIM
IFB
VO
200
80
mA
Current Limit
VO
-
ꢀA
Fold-back Current
V
OUT>2.0V
-1
-2
0.5
-
1
2
VIN=VOUT(T)+0.5V
I
O
=0.1 to 150mA
%
Load Regulation
REGLOAD
VDROPOUT
V
OUT≤2.0V
VIN=VOUT(T)+1V
V
OUT(T)≥2.0V
-
-
-
-
-
300
700
900
60
500
1000
1300
-
I
O
=150mA
V
O
=VOUT(E)-2%
mV
Dropout Voltage
1.8V≤VOUT(T)<2.0V
1.5V≤VOUT(T)<1.8V
IQ
IGND
VIN=5V, I
O
=0mA
ꢀA
ꢀA
Quiescent Current
Ground Pin Current
V
IN=5V, I =1mA to150mA
O
50
-
I
O
=0.1mA, VOUT>2.0V
-0.2
-0.4
0.1
-
0.2
0.4
VIN=VOUT(T)+0.5V to 5.5V
%
Line Regulation
REGLINE
IO
=0.1mA, VOUT≤2.0V
IN=VOUT(T)+1V to 5.5V
V
Note3
-
5.5
V
Input Voltage
VIN
к
к
Over Temperature Shutdown
-
-
137
23
-
-
OTS
OTH
Over Temperature Hysterisis
Output Voltage
Temperature Coefficient
ppm/к
-
30
-
TC
Ro=100ꢁ,Co=2.2mF, f=1kHz
-
70
30
-
-
-
dB
ꢀVrms
V
Power Supply Rejection
Output Voltage Noise
PSRR
eN
f=10Hz~100kHz, Io=10mA, Co=2.2ꢀF
-
V
SHDN=0.8* VIN
SHDN=0.6V
IN=5V, EN=0v, or 5V
IN=5V, V =0V
Output Loading≤1200ꢁ, Vo=0V
0.8* VIN
VIN
VSHDNH
VSHDNL
SHDN Input Threshold
V
0
-
-
0.6
-
V
V
0.01
0.5
-
ꢀA
ꢀA
V
SHDN Input Bias Current
Shutdown Supply Current
Shutdown Output Voltage
ISD
V
O
-
1
0
0.4
VO,SD
Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when “VOUT(T)>2.0V VIN=VOUT(T)+0.5V; VOUT(T)≤2.0V VIN=VOUT(T)+1V;
SHDN=VIN” is provided at the VIN pin while maintaining a certain IOUT value).
V
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 5
S5M2111
CMOS
Elektronische Bauelemente
Positive Voltage Regulator
Ordering Information(contd.)
Output Voltage
Marking
1P182
XXXX
1P252
XXXX
1P282
XXXX
1P302
XXXX
Marking
Part Number
S5M2111-18
S5M2111-25
S5M2111-28
S5M2111-30
S5M2111-33
Output Voltage
Part Number
S5M2111-15
S5M2111-20
S5M2111-27
S5M2111-2H
S5M2111-32
1P152
XXXX
1P202
XXXX
1P272
XXXX
1P2H2
XXXX
1.8V
1.5V
2.0V
2.7V
2.85V
2.5V
2.8V
3.0V
3.3V
1P332
XXXX
1P322
XXXX
3.2V
Detailed Description
The G5M2111 series of COMS regulators contain 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
150к, or the current exceeds 150mA. During thermal shutdown, the output voltage remains low. Normal
operation is restored when the junction temperature drops below 120к.
The G5M2111 switches from voltage mode to current mode when the load exceeds the rated output current.
This prevents over-stress. The G5M2111 also incorporates current fold-back to reduce power dissipation when
the output is short circuited. This feature becomes active when the output drops below 0.8 volts, and reduces
the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts.
External Capacitors
The G5M2111 is stable with an output capacitance to ground of 0.22ꢀF 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.
A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should
be at least 1ꢀF to have a beneficial effect.
A large capacitor improves the AC ripple rejection, but also makes the output come up slowly. This “Soft”
turn-on is desirable in some applications to limit turn-on surges.
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.
Shutdown
When actively, 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.
Characteristics Curve
ht tp://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 3 of 5
S5M2111
CMOS
Elektronische Bauelemente
Positive Voltage Regulator
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 4 of 5
S5M2111
CMOS
Elektronische Bauelemente
Positive Voltage Regulator
http://www.SeCoSGmbH.com/
Any changing of specification will not be informed individual
01-Jun-2002 Rev. A
Page 5 of 5
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