概述
数据手册MM3479A16 概述
1A LDO with soft-start
MM3479A16 数据手册
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1A LDO with soft-start MM3479 Series
1A LDO with soft-start
Monolithic IC MM3479 Series
Outline
This IC is a 1A LDO with soft-start.
The soft-start can reduce a rush current by the Cs capacitor on start-up.
Package is SOT89-5A which can be the high radiation of heat on small space.
Features
1. Maximum input voltage
2. Output current
6V
1A
3. No load input current
4. Input current (OFF)
5. Output voltage range
6. Output voltage accuracy
7. Dropout voltage
50µA typ.
1µA max.
1.2~5.0V
1% or 15mV
0.7V max. (IO=1A, VO=3V)
0.2%/V max.
130mV max.(IO=1~300mA)
70dB typ. (f=1kHz)
Built-in
8. Line regulation
9. Load regulation
10. Ripple rejection
11. Thermal shutdown
12. Output Capacitor
1µF
Package
SOT89-5A
Applications
1. TV
2. BD recorder/player
3. Printer
4. Game
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Model Name
M
M
3
4
7
9
A
a
b
c
d
e
a
b
Function Type
Voltage Output RANK
CE=H-Active,
with Discharge Function
The combination of each regulator
output voltage is specified by
design serial numbers.
It is assigned in order from 12.
Output voltage can be set in the
range.
A
12
50
c
d
Package
Packing Specifications
P
SOT89-5A
R
L
F
B
R HOUSING (SOT89-5A_Standard)
L HOUSING
F HOUSING
B HOUSING
e
E
EMBOSS TAPE
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Block Diagram
VDD
CE
VOUT
Bias
CS
Vref
Thermal
Shutdown
Current
Limit
GND
Pin Assignment
1
2
3
4
5
CE
GND
CS
VDD
VOUT
5
1
4
3
2
-
SOT89 5A
(TOP VIEW)
Pin Description
Pin No.
Pin name
Functions
ON/OFF-Control pin
CE
L
H
OUTPUT
OFF
1
CE
ON
Connect CE pin with VDD pin,
when it is not used.
2
3
4
5
GND
CS
VDD
VOUT
GND pin
Soft-Start pin (Note)
Voltage-Supply pin
Output pin
Note : Must be connect capacitor to Soft-Start pin.
Refer to 9 and 19 for details.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
Tstg
TjMAX
VDD
VCE
VOUT
VCS
Ratings
−55~+150
150
Units
°C
°C
V
V
V
V
A
mW
Storage Temperature
Junction Temperature
Supply Voltage
−0.3~+6.5
−0.3~+6.5
−0.3~VDD+0.3
−0.3~VDD+0.3
1.2
CE input Voltage
Output Voltage
Cs Voltage
Output Current
IOMAX
Pd
Power Dissipation (Note1)
1780
Note1 : JEDEC51-7 standard 114.3mm 76.2mm t=1.6mm
(Except where noted otherwise Ta=25°C)
Recommended Operating Conditions
Item
Symbol
Topr
Vop
Ratings
-40~+85
1.6~6.0
0~1
Units
°C
V
Operating Ambient Temperature
Operating Voltage
Output Current
IOUT
A
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25°C)
Electrical Characteristics 1
Item
Symbol
IDDOFF
IDD
Measurement conditions
VCE=0V
Min. Typ. Max. Units
Input Current (OFF)
No-Load Input Current
0.1
50
1.0
80
µA
µA
IOUT=0mA
IOUT=10mA, 1.5 VOUT
IOUT=10mA, VOUT 1.5V
0.99
0.015
1.01
+0.015
Output Voltage
VOUT
V
-
VOUT(typ.)+0.5V VDD 6.0V
IOUT=100mA, 2.0V VOUT
Line Regulation
VLINE
0.05 0.2 %/V
2.5V VDD 6.0V
IOUT=100mA, VOUT 2.0V
Load Regulation
Dropout Voltage
VLOAD
Vio
1mA IOUT 1000mA
75
130 mV
V
Please refer to another page
f=1kHz, Vripple=0.5V, IOUT=10mA
1.5 VOUT
Ripple Rejection
RR
70
dB
f=1kHz, Vripple=0.5V, IOUT=10mA
VDD=2.5V, VOUT 1.5V
IOUT=100mA,
40 Top +85°C
VOUT Temperature Coefficient (Note2)
VOUT
/
T
100
ppm/°C
-
Output Current
IOUT
Ishort
1
A
Output Short-Circuit Current (Note2)
VOUT=0V
30
mA
Thermal ShutDown Detect Temperature
(Note2)
TSD
TSR
150
°C
Thermal ShutDown Release Temperature
(Note2)
125
1.5
°C
ms
Output Rise Time (Note2)
CE High Threshold Voltage
CE Low Threshold Voltage
CE Pin Current
tr
CS=0.1µF
VCE=2.0V
VCEH
VCEL
ICE
1.2
6.0
0.3
V
V
0.3
30
µA
Output NMOS ON Resistance (Note2)
RDON
VCE=0V, VDD=4V
Note2 : The parameter is guaranteed by design.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25°C)
Item
Electrical Characteristics 2
Output Voltage
Dropout Voltage
Vio (V)
Model No.
VOUT (V)
Measurement Conditions Min.
Typ.
1.200
1.300
1.400
1.500
1.600
1.700
1.800
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
Max. Measurement Conditions Min.
Typ.
Max.
MM3479A12
MM3479A13
MM3479A14
MM3479A15
MM3479A16
MM3479A17
MM3479A18
MM3479A19
MM3479A20
MM3479A21
MM3479A22
MM3479A23
MM3479A24
MM3479A25
MM3479A26
MM3479A27
MM3479A28
MM3479A29
MM3479A30
MM3479A31
MM3479A32
MM3479A33
MM3479A34
MM3479A35
MM3479A36
MM3479A37
MM3479A38
MM3479A39
MM3479A40
MM3479A41
MM3479A42
MM3479A43
MM3479A44
MM3479A45
MM3479A46
MM3479A47
MM3479A48
MM3479A49
MM3479A50
1.185
1.285
1.385
1.485
1.584
1.683
1.782
1.881
1.980
2.079
2.178
2.277
2.376
2.475
2.574
2.673
2.772
2.871
2.970
1.215
1.315
1.415
1.515
1.616
1.717
1.818
1.919
2.020
2.121
2.222
2.323
2.424
2.525
2.626
2.727
2.828
2.929
3.030
3.131
3.232
3.333
3.434
3.535
3.636
3.737
3.838
3.939
4.040
4.141
4.242
4.343
4.444
4.545
4.646
4.747
4.848
4.949
5.050
0.30
0.40
IOUT=300mA,
VOUT 2.0V
(Note3)
0.21
0.21
0.27
0.27
IOUT=10mA
3.069
3.168
3.267
3.366
3.465
3.564
3.663
3.762
3.861
3.960
4.059
4.158
4.257
4.356
4.455
4.554
4.653
4.752
4.851
4.950
IOUT=300mA,
2.0V VOUT,
DD =VOUT (TYP.) -0.2V
V
0.15
0.21
Note3 : Dropout voltage maximum value in the input and it is confirmed that there is no output abnormal
<
voltage impression the 300mA in the model less than VOUT 2.0V.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Item
Output Voltage
VOUT (V)
Dropout Voltage
Vio (V)
Model No.
Measurement Conditions Min.
Typ.
1.200
1.300
1.400
1.500
1.600
1.700
1.800
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
Max. Measurement Conditions Min.
Typ.
Max.
MM3479A12
MM3479A13
MM3479A14
MM3479A15
MM3479A16
MM3479A17
MM3479A18
MM3479A19
MM3479A20
MM3479A21
MM3479A22
MM3479A23
MM3479A24
MM3479A25
MM3479A26
MM3479A27
MM3479A28
MM3479A29
MM3479A30
MM3479A31
MM3479A32
MM3479A33
MM3479A34
MM3479A35
MM3479A36
MM3479A37
MM3479A38
MM3479A39
MM3479A40
MM3479A41
MM3479A42
MM3479A43
MM3479A44
MM3479A45
MM3479A46
MM3479A47
MM3479A48
MM3479A49
MM3479A50
1.185
1.285
1.385
1.485
1.584
1.683
1.782
1.881
1.980
2.079
2.178
2.277
2.376
2.475
2.574
2.673
2.772
2.871
2.970
3.069
3.168
3.267
3.366
3.465
3.564
3.663
3.762
3.861
3.960
4.059
4.158
4.257
4.356
4.455
4.554
4.653
4.752
4.851
4.950
1.215
1.315
1.00
1.30
1.415
IOUT=1A,
1.515
VOUT 2.0V
1.616
(Note4)
1.717
0.70
0.70
0.90
0.90
1.818
1.919
2.020
2.121
2.222
2.323
2.424
2.525
2.626
2.727
2.828
2.929
3.030
3.131
3.232
3.333
IOUT=10mA
3.434
3.535
3.636
3.737
3.838
3.939
4.040
4.141
4.242
4.343
4.444
4.545
4.646
4.747
4.848
4.949
5.050
IOUT=1A,
2.0V VOUT,
DD =VOUT (TYP.) -0.2V
V
0.50
0.70
Note4 : Dropout voltage maximum value in the input and it is confirmed that there is no output abnormal
<
voltage impression the 1A in the model less than VOUT 2.0V.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Measuring Circuit
1µF
1µF
A
A
VDD
CE
VOUT
CS
V
A
GND
0.1µF
Application Circuit
1µF
1µF
VDD
CE
VOUT
CS
GND
0.1µF
Temperature Characteristics : B
(Reference example of external parts)
· Output capacitor
· Input capacitor
· Softstart Capacitor
Ceramic capacitor 1.0µF
Ceramic capacitor 1.0µF
Ceramic capacitor 0.1µF
· In the event a problem which may affect industrial property or any other rights of us or a third party is
encountered during the use of information described in these circuit, we shall not be liable for any such
problem, nor grant a license therefore.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
· Note
1. There is a possibility with deterioration and destruction of IC when using it exceeding the absolute
maximum rating.
The absolute maximum rating , Never exceed it.
The functional operation is not assured.
2. There is a possibility that it becomes impossible to maintain this performance and reliability IC original
when using it exceeding recommended operation voltage.
Please use it in recommended operation voltage.
3. Due to restrictions on the package power dissipation, the output current value may not be satisfied.
Attention should be paid to the power dissipation of the package when the output current is large or the
voltage between Input and Output is high.
4. The output capacitor is required between output and GND to prevent oscillation.
5. 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 temperature characteristics.
6. The wire of VDD and GND is required to print full ground plane for noise and stability.
7. The input capacitor must be connected a distance of less than 1cm from input pin.
8. 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.
Schottky barrier diode
VOUT
CS
VDD
CE
GND
9. Please connect the soft-start capacitor(Cs) more than 0.01µF with the terminal Cs.
10. The output capacitor and the softstart capacitor must be connected it within the limits a rush current
peak level 1A showed in the typical performance characteristics.
11. When rush current exceeds current limit characteristics, it is restricted with the current limit set up with
the chip, an output rise time is uncontrollable by soft-start capacitor.
12. When use connecting VDD and CE, in the case of starting VDD in input rise time longer then the set-up
soft-start time, an output rise time is decide by a VDD input rise time.
13. Please do not give the voltage to the terminal Cs.
14. When the voltage of the soft-start pin is higher than the voltage of VDD, it becomes test mode.
In that case, there is a possibility that the output voltage becomes unstable.
15. It is able to an unstable operation when you use the capacitor with intense capacitance change
The capacitor has the dependency at the power-supply voltage and the temperature.
The capacity value changes by the environment used. Please evaluate IC in the set.
16. The overcurrent protection circuit of the vertical type is built into this IC.
17. There is a possibility that IC generates heat when the output terminal is short-circuited.
However, the thermal shutdown circuit operates, and it will do operation that protects IC.
The thermal shutdown circuit is designed only to shut the IC off to prevent thermal runaway.
Do not continue to use the IC in an environment where the operation of this circuit is assumed.
The characteristic changes depending on the substrate condition.
Please evaluate IC in the set.
18. It returns automatically in temperature returned after it shuts down by self-generation of heat.
After it returns, it shuts down again by self-generation of heat. It is necessary to change the environment
used (IC consumption, temperature) if it operates in upper cycle.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
19. When VDD rise time is longer than Vout rise time, Vout rise time is decided by VDD rise time. At this time,
Vout is may rose more than typical voltage.
Please set to soft-start capacitor for the VDD rise time in the slash area shown in Fig. 1.
Fig. 1 is common for all the voltage ranks, because soft start time is decided by
soft start capacitor and reference voltage.
Please choose to a capacitor in consideration of the dispersion .
Refer to Fig. 2 for a measurement circuit.
Condition : VDD=Vout (typ.) +1V, CE=VDD, Ta=
-
40°C~+85°C
VDD
100
Vout
90%
10%
10
1
Setting area
t
VDD rise time (t) of VDD is judgedin time
(10%-90%) until VDD reaches Vout setting
voltage.
*
0.1
0.01
0.01
0.1
1
10
Soft-start capacitor [uF]
Fig, 1 Soft-start capacitor vs VDD rise time
1µF
1µF
VDD
VOUT
CS
CE
GND
0.01µF
~3.3µF
Fig, 2 Test Circuit
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
About Power Dissipation
The Power dissipation change if board to mount IC change because radiative heat fix at board.It is reference
data below, Evaluate IC in the set.
1. PC Board of glass epoxy
Board size
114.3mm×76.2mm t=1.6mm Copper foil area 80%
1000mW Ta=25°C
Power dissipation
2. JEDEC51-7 standard
Board size
114.3mm×76.2mm t=1.6mm Copper foil area 80%
Power dissipation
1780mW Ta=25°C (It is reference value measured by JEDEC51-7 standard.)
2000
1800
1600
1400
2. JEDEC51-7 standard (4 layer)
1200
1000
800
600
400
200
0
1. PC Board of glass epoxy (2 layer)
0
25
50
75
100
125
150
Ambient Temperature(˚C)
It is recommended to layout the VIA for heat radiation in the GND pattern of reverse (of IC) when there is the
GND pattern in the inner layer (in using multiplayer substrate).
By increasing these copper foil pattern area of PCB, Power dissipation improves.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25°C)
Characteristics (VOUT=1.2V)
Input Voltage
- Output Voltage
Input Voltage
- Input Current
RL=
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
500
400
300
200
100
0
RL=
RL=2.4
RL=4
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VDD (V)
Input Voltage VDD (V)
Load Regulation
Line Regulation
RL=12
120
80
10
5
0
40
0
−40
−80
−120
−5
−10
0
200
400
600
800
1000
2
3
4
5
6
Output Current Io (mA)
Input Voltage VDD (V)
Ripple Rejection
0
−10
−20
−30
−40
RL=12
RL=120
−50
−60
−70
−80
−90
RL=1.2k
0.1
0.01
1
10
100
1000
Frequency f (kHz)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Output Current
- Output Voltage
ESR stable area
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
100
1
Stable area
0.1
0.01
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0
200
400
600
800
1000
Output Current Iout (A)
Output Current Iout (mA)
Output Voltage Temperature Coefficient
RL=12
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
−50 −25
0
25 50 75 100 125 150 175
Temperature Ta (ºC)
Load Transient response
(Cin=Co=1µF)
IO
=50mA 500mA
IO=50mA 1000mA
10µs/div
10µs/div
IO:500mA/div
VO:200mV/div
IO:500mA/div
VO:500mV/div
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Input rise characteristics
(VDD=0V 2.2V, VCE=VDD)
CE rise characteristics
(VDD=2.2V, CE=0V VDD)
500µs/div
500µs/div
VDD:2.0V/div
Vo:0.5V/div
Iin:20mA/div
CE:2.0V/div
Vo:0.5V/div
Iin:20mA/div
Vout discharge characteristics
(VDD=2.2V, CE=VDD 0V)
Cs discharge characteristics
(VDD=2.2V, CE=VDD 0V)
50µs/div
5µs/div
CE:2V/div
CE:2V/div
Vo:0.5V/div
CS:0.5V/div
Rush Current Peak Level
Output rise time
Co: Aluminum electrolytic capacitor
1000
100
CO=470uF
CO=100uF
100
10
1
CO
=47uF
10
0
CO=10uF
CO=1uF
0
0.01
0.1
1
0.01
0.1
1
Cs (uF)
Cs (uF)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25°C)
Characteristics (VOUT=3.0V)
Input Voltage
- Output Voltage
Input Voltage
- Input Current
RL=
4.0
3.5
3.0
500
400
300
200
100
0
RL=
2.5
RL=6.6
2.0
1.5
1.0
0.5
0.0
RL=11
2
0
1
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VDD (V)
Input Voltage VDD (V)
Load Regulation
Line Regulation
RL=33
120
80
10
5
0
40
0
−40
−80
−120
−5
−10
0
200
400
600
800
1000
3.5
4.0
4.5
5.0
5.5
6.0
Output Current Iout (mA)
Input Voltage VDD (V)
Dropout Voltage
Ripple Rejection
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
RL=330
RL=33
0.1
RL=3.3k
10
0
200
400
600
800
1000
0.01
1
100
1000
Output Current Io (mA)
Frequency f (kHz)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Output Current
- Output Voltage
ESR stable area
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
10
1
Stable area
0.1
0.01
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0
200
400
600
800
1000
Output Current Iout (A)
Output Current Iout (mA)
Output Voltage Temperature Coefficient
RL=33
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
−50 −25
0
25 50 75 100 125 150 175
Temperature Ta (ºC)
Load Transient response
(Cin=Co=1µF)
IO=50mA 500mA
IO=50mA 1000mA
10µs/div
10µs/div
IO:500mA/div
VO:200mV/div
IO:500mA/div
VO:500mV/div
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Input rise characteristics
(VDD=0V 4.3V, VCE=VDD)
CE rise characteristics
(VDD=4.3V, CE=0V VDD)
500µs/div
500µs/div
VDD:2.0V/div
Vo:2.0V/div
Iin:20mA/div
CE:2.0V/div
Vo:2.0V/div
Iin:20mA/div
Vout discharge characteristics
(VDD=4.3V, CE=VDD 0V)
Cs discharge characteristics
(VDD=4.3V, CE=VDD 0V)
50µs/div
5µs/div
CE:2V/div
CE:2V/div
CS:1V/div
Vo:1V/div
Rush Current Peak Level
Output rise time
Co: Aluminum electrolytic capacitor
1000
100
CO=470uF
CO=100uF
100
10
0
10
1
CO=47uF
CO=10uF
CO=1uF
0.1
0.01
0.1
1
0.01
0.1
1
Cs (uF)
Cs (uF)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
(Except where noted otherwise VDD=VOUT(TYP.)+1V, VCE=VDD, Ta=25°C)
Characteristics (VOUT=5.0V)
Input Voltage
-
Output Voltage
Input Voltage
- Input Current
RL=
6
5
800
700
600
500
400
300
200
100
0
RL=16.6
4
RL=
3
2
1
0
RL=10
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VDD (V)
Input Voltage VDD (V)
Load Regulation
Line Regulation
RL=50
120
80
10
5
0
40
0
−40
−80
−120
−5
−10
0
200
400
600
800
1000
5.5
5.6
5.7
5.8
5.9
6.0
Output Current Iout (mA)
Input Voltage VDD (V)
Dropout Voltage
Ripple Rejection
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
−10
−20
−30
−40
RL=50
−50
−60
−70
−80
−90
RL=500
RL=5k
0
200
400
600
800
1000
0.01
0.1
1
10
100
1000
Output Current Iout (mA)
Frequency f (kHz)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Output Current
- Output Voltage
ESR stable area
6
5
4
3
2
1
0
10
1
Stable area
0.1
0.01
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0
200
400
600
800
1000
Output Current Iout (A)
Output Current Iout (mA)
Output Voltage Temperature Coefficient
RL=50
6
5
4
3
2
1
0
−50 −25
0
25 50 75 100 125 150 175
Temperature Ta (ºC)
Load Transient response
(Cin=Co=1µF)
IO=50mA 500mA
IO=50mA 1000mA
10µs/div
10µs/div
IO:500mA/div
VO:200mV/div
IO:500mA/div
VO:500mV/div
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
1A LDO with soft-start MM3479 Series
Input rise characteristics
(VDD=0V 6.0V, VCE=VDD)
CE rise characteristics
(VDD=6.0V, CE=0V VDD)
500µs/div
500µs/div
VDD:5.0V/div
Vo:2.0V/div
Iin:20mA/div
CE:5.0V/div
Vo:2.0V/div
Iin:20mA/div
Vout discharge characteristics
(VDD=6.0V, CE=VDD 0V)
Cs discharge characteristics
(VDD=6.0V, CE=VDD 0V)
50µs/div
5µs/div
CE:5V/div
CE:5V/div
CS:1V/div
Vo:2V/div
Rush Current Peak Level
Output rise time
Co: Aluminum electrolytic capacitor
1000
100
CO=470uF
C =100uF
O
100
10
1
10
1
CO=47uF
CO=10uF
CO=1uF
0.1
0.01
0.1
Cs (uF)
1
0.01
0.1
1
Cs (uF)
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MM3479A16 相关器件
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| MM3479A17 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A19 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A20 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A21 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A22 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A23 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A24 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A25 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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| MM3479A26 | MITSUMI | 1A LDO with soft-start | 获取价格 |
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