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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Low-Saturation 300mA Regulators
Monolithic IC MM159X Series
Outline
This is a 300mA output low-saturation regulator IC with low noise and high ripple rejection ratio.
Ceramic capacitors can be used for the output capacitors, and it has an output noise reduction pin and
ON/OFF control pin.
Features
1. High precision output voltage ±2.0%
2. Output current 300mA
3. Input/output voltage difference 0.15V typ. (Io=100mA)
4. High ripple rejection ratio 70dB typ.
5. Wide operating temperature range -40~+85°C
6. Output voltage 1.5~5.0V (0.1V step)
7. Output capacitor 1µF(ceramic)
Package
SOP-8D/G
Applications
1. Constant voltage power supply for devices that use batteries
2. Constant voltage power supply for portable communications devices
3. Constant voltage power supply for household electronics products
Block Diagram
GND
VIN
Thermal
shutdown
Bias
CONT
Driver
limitter
Current
CN
Reference
OUTV
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Pin Description
Pin No. Pin name Function Internal equivalent circuit diagram
1 VOUT Output pin
2 NC
3 GND Ground pin
4 CN Noise decrease pin
1432
8567
SOP-8D/G
(TOP VIEW)
1 VOUT
2 NC
3 GND
4 C
N
5 CONT
6 NC
7 NC
8 V
IN
Pin Assignment
Error
Amp.
CN
Error
Amp.
OUTV
OUTV
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Pin No. Pin name Function Internal equivalent circuit diagram
5 COUT Control pin
6 NC No connection
7 NC No connection
8 V
IN Input pin
COUT Output
HON
L OFF
Absolute Maximum Ratings
(Ta=25°C)
Item Symbol Ratings Units
Storage temperature T
STG
-
55~+150 °C
Supply voltage V
IN
-
0.3~+13 V
Allowable loss Pd
950 *1 mW
Recommended Operating Conditions
Item Symbol Ratings Units
Operating temperature T
OPR
-
40~+85 °C
Output current I
OUT 0~300 mA
Operating voltage V
OP VO Typ.+0.5~13 V
Note : *1 With the double sided PC Board of glass epoxy
(Copper plane 80%, 192 142 1.2mm)
CONT
225k
300k
VIN
Bias
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Electrical Characteristics 1
(Except where noted therwise, Ta=25°C, VIN=VO+2V, VCONT=1.6V)
Electrical Characteristics 2
Item Symbol Measurement conditions Min. Typ. Max. Units
No-Load input current I
CC Io=0mA 2.2 5 mA
Input current (OFF) I
CCOFF VCONT=0V 0 1 µA
Output voltage
*
2 VOUT Io=1mA 0.98 1.02 V
Dropout voltage
*
3 VIO VIN=VO-0.2V, IO=100mA 0.15 0.3 V
Line regulation V1 V
IN=VO+1.5~Vo+2.5V, IO=1mA 10 20 mV
Load regulation V2 Io=0~300mA 20 120 mV
V
OUT
temperature coefficient *1 V
OUT
/ T
Tj=-40~+85°C 100
ppm/°C
Ripple rejection *1 RR f=120Hz VRIPPLE=1V, IO=100mA 50 70 dB
Output noise voltage
*
1 V
N
fBW
=20~
80kHz, CN=
470pF, I
OUT
=
100mA
75
µVrms
fBW=20~80kHz, CN=
OPEN, I
OUT
=
100mA 150
CONT pin input current ICONT VCONT=5V 10 20 30 µA
C
ONT
pin high threshold level
VCONTH 1.6
VIN+0.3
V
C
ONT
pin low threshold level
VCONTL
-
0.3 0.4 V
Note1 : *1. The parameter is guaranteed by design.
Note2 :
*
2. Please refer to follow.
Note3 :
*
3. The parameter is not guaranteed in the model less than VOUT=2V.
Product Test Output voltage (V)
name
condisions
Min. Typ. Max.
MM1591J 1.764 1.8 1.836
MM1591K 1.862 1.9 1.938
MM1592A 1.960 2.0 2.040
MM1592B 2.058 2.1 2.142
MM1592C 2.156 2.2 2.244
MM1592D 2.254 2.3 2.346
MM1592E 2.352 2.4 2.448
MM1592F 2.450 2.5 2.550
MM1592G 2.548 2.6 2.652
MM1592H 2.646 2.7 2.754
MM1592J 2.744 2.8 2.856
MM1592K 2.842 2.9 2.958
MM1593A 2.940 3.0 3.060
MM1593B 3.038 3.1 3.162
MM1593C 3.136 3.2 3.264
MM1593D 3.234 3.3 3.366
MM1593E 3.332 3.4 3.468
MM1593F 3.430 3.5 3.570
MM1593G 3.528 3.6 3.672
MM1593H 3.626 3.7 3.774
MM1593J 3.724 3.8 3.876
MM1593K 3.822 3.9 3.978
Io=1mA
Product Test Output voltage (V)
name
condisions
Min. Typ. Max.
MM1594A 3.920 4.0 4.080
MM1594B 4.018 4.1 4.182
MM1594C 4.116 4.2 4.284
MM1594D 4.214 4.3 4.386
MM1594E 4.312 4.4 4.488
MM1594F 4.410 4.5 4.590
MM1594G 4.508 4.6 4.692
MM1594H 4.606 4.7 4.794
MM1594J 4.704 4.8 4.896
MM1594K 4.802 4.9 4.998
MM1595A 4.900 5.0 5.100
Io=250mA
Output Voltage
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Measuring Circuit
NC
12
GND
3
7 6
NC NCVIN
CN
4
CONT
5
OV
8
V
A
A A
CIN=1µF
Ceramic
Co=1µF
Ceramic* Ceramic
CN=470pF
Application Circuit
NC
12
GND
3
7 6
NC NCVIN
CN
4
CONT
5
OV
8
CIN=1µF
Ceramic
Co=1µF
Ceramic* Ceramic
CN=470pF
Input
To load
Note
1. The output capacitor is required between output and GND to prevent oscillation.
2. The ESR of capacitor must be defined in ESR stability area.
It is possible to use a ceramic capacitor without ESR resistance for output.
The ceramic capacitor must be used more than 1.0µF and B type (X5R) temperature characteristics.
3. The wire of Vcc and GND is required to print full ground plane for noise and stability.
4. The input capacitor must be connected a distance of less than 1cm from input pin.
5. The capacitor is connected to Cn must have low leakage current characteristics, because Cn pin is high
impedance. The rise time will chage depending on the capacitance value.
6. In case the output voltage is above the input voltage, the overcurrent flow by internal parasitic diode from
output to input. In such application, the external bypass diode must be connected between output and
input pin.
*
Temperature Characteristics: B Type
(X5R Type)
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Characteristics
(2.5V product Except where noted therwise, Ta=25°C, V
IN=VO
+2V, V
CONT=VIN
, CIN=1.0µF, CO=1.0µF)
Input Voltage-Output Voltage No Load Input Current
0.0
315420
Input Voltage VIN (V)
1.5
1.0
0.5
2.0
3.0
2.5
Output Voltage VO (V)
RL=8.3Ω
RL=25Ω
R
L=2.5kΩ
0.0
621210840
Input Voltage VIN (V)
3.0
2.0
1.0
5.0
4.0
Input Current IIN (mA)
RL=∞
Load Regulation
-30
20050 300250100 1500
Load Current IOUT (mA)
10
0
-10
-20
30
20
Load Regulation Vload (mV)
Line Regulation
Drop Voltage
-10
11 125678 139104
Input Voltage VIN (V)
0
-5
10
5
Line regulation
RL=2.5kΩ
VO (mV)
0.00
200 300 5004001000
IOUT (mA)
0.20
0.10
0.50
0.30
0.40
Drop Voltage (V)
VIN=2.3V
Output Voltage(IO=0mA)
2.2
75 100
-
25 15012502550
-
50
Ambient Temperature Ta (ºC)
2.5
2.4
2.3
2.7
2.6
Output Voltage VOUT (V)
RL=∞
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Ripple Rejection Output Noise
-
100
100.1 100010010.01
Frequency (kHz)
-
50
-
60
-
40
-
30
-
20
-
70
-
80
-
90
0
-
10
Ripple Rejection RR (dB)
CN=0µF
CN=470pF
CN=0.01µF
0
100010 100001001
Noise Reduction Capacitor CN (pF)
100
50
200
150
Output Noise Vn (µVrms)
RL=12Ω
Current Limit Characteristics
0.0
400 500100 200 7006003000
Output Current IOUT (mA)
1.5
1.0
0.5
2.0
3.0
2.5
Output Voltage VO (V)
GND Pin Current
ESR Stability Area
0
400100 500200 3000
Output Current IOUT (mA)
40
30
20
10
60
50
GND Pin Current (mA)
0.01
300100 4002000
Output Current IOUT (mA)
1
0.1
10
ESR (Ω)
Stable area
Instable area
Power Dissipation
0
15050 2001000
Ambient Temperature Ta (ºC)
400
200
1000
800
600
Pd (mW)
Not attached
192 142 1.2mm
On board
Copper plane 80%
Characteristics
(2.5V product Except where noted therwise, Ta=25°C, VIN=VO+2V, V
CONT=VIN
, CIN=1.0µF, CO=1.0µF)
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MITSUMI
Low-Saturation 300mA Regulators MM159X Series
Characteristics
(1.8V, 5.0V product Except where noted therwise, Ta=25°C, VIN=VO+2V, V
CONT=VIN
, CIN=1.0µF, CO=1.0µF)
Load Regulation(VO=1.8V) Load Regulation(VO=5.0V)
1.5
400 500100 200 6003000
Output Current IOUT (mA)
1.8
1.7
1.6
2
1.9
Output Voltage VO (V)
4.7
400100 600500200 3000
Output Current IOUT (mA)
5
4.9
4.8
5.2
5.1
Output Voltage VO (V)
Output Voltage(VO=1.8V)
1.5
25
-
25 15050 75 100 1250
-
50
Ambient Temperature Ta (ºC)
1.8
1.7
1.6
2.0
1.9
Output Voltage VOUT (V)
Output Voltage(VO=5.0V)
4.7
25
-
25 15050 75 100 1250
-
50
Ambient Temperature Ta (ºC)
5.0
4.9
4.8
5.2
5.1
Output Voltage VOUT (V)
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